Boiler Flowsheet Recon

Jupyter Notebook source file

Data Reconciliation of a Supercritical Coal-Fired Boiler, Flowsheet Example¶

This notebook demonstrates data reconciliation with a flowsheet heat exchanger network, the boiler subflowsheet consist of an economizer, water wall, primary superheater, platen superheater, finishing superheater, and reheater. Data for this example was generated by adding noise to supercritical power plant simulations.

Why reconcile data?¶

Data reconciliation uses mass and energy balances along with redundant measurements to improve data quality by:

1. reducing measurement error,
2. ensuring measurements satisfy mass and energy balances, and
3. filling in unmeasured quantities.

Data reconciliation is used to refine process data before parameter estimation.

1. Read Plant Data¶

The first step is to read in process data. In this case, data was simulated by adding measurement error to supercritical steam cycle simulation results. IDAES includes functions to read process data, convert units to match the models, and map data to the model.

In [1]:

# IDAES module with functions to read, analyze and visualize plant data
import idaes.core.dmf.model_data as da

Process data is contained in two csv files, a data file and a metadata file. The data file where the first column is row indexes and the first row is process measurement tags. The index column has an entry for each data row, and is often a timestamp. The metadata file contains information about the tags including units of measurement, description, and model mapping information.

Once the process data is read in, the data is assigned to bins based on the value in a given column, in this case gross power. Dividing the data into bins allows rough estimation of measurement uncertainty.

In [2]:

# Read in data and column metadata
df, df_meta = da.read_data("plant_data.csv", "plant_data_meta.csv")
# Add bin information where the data is sorted into 5 MW bins based on the "GROSS_POWER" column
bin_count = da.bin_data(df, bin_by="POWER_GROSS", bin_no="bin_no", bin_nom="bin_power", bin_size=5e6)
# Calculate the standard deviation by bin for each column
bin_stdev = da.bin_stdev(df, bin_no="bin_no")

It can be useful to visualize the measurement data and estimated uncertainty. The following creates box and whisker plots for each tag based on the data bins.

In [3]:

# Create a pdf book of plots that shows box and whisker plots for each column by bin
import os
if not os.path.isfile("data_plot_book.pdf"):
    da.data_plot_book(df, file="data_plot_book.pdf", bin_nom="bin_power", xlabel="gross power (W)", metadata=df_meta)
# There should now be a data_plot_book.pdf file in this directory

2. Boiler Flowsheet Setup¶

Now that we have the plant data, we need to create the flowsheet model that we can use for data reconciliation. Although we need a model that has just mass and energy balances and feasibility constraints for the data reconciliation problem, we start with the boiler flowsheet model here. Using the same model for data reconciliation, parameter estimation, validation, and simulation reduces the work required to move between steps in the workflow.

Once the full flowsheet model is created, constraints that are not needed for data reconciliation can be deactivated.

2.1 Case Study:¶

In a supercritical coal-fired power plant, the boiler sub-system consists of multiple heat exchangers transferring heat from the combustion side to the water/steam side. The boiler system for this work (Figure 1) is based on a 550 MWe supercritical power plant. Note that water wall and platen superheater are modeled as a heater, while the rest of the units correspond to the shell and tube heat exchangers. Note that boiler flowsheet block diagram shows the available measurements from plant data. *for demonstration purposes "plant data" has been trained at different operating loads and with noise.

In [4]:

# Import pyomo and idaes libraries
from idaes.core.util import model_serializer as ms
from idaes.core.util.model_statistics import degrees_of_freedom

import pyomo.environ as pyo

# import methods to build the flowsheet and deactivate performance constraints
import boiler_data_rec as flowsheet

2.2 Flowsheet Setup¶

The "boiler_flowsheet" method imports all the unit models in the boiler heat exchanger network, builds the flowsheet, builds the flowsheet connectivity, and initializes the flowsheet.

The final solve corresponds to a simulation case, with the following inputs (relative to a ~650 MW case):

• Economizer (water): F, h, P
• Reheater Inlet (Cold Reheat steam): F, h, P
• Coal flowrate (kg/s) and stoichiometric ratio (unitless)
• Dimensions of all units (tube diameter, # tubes, hx area, etc.)

In [5]:

# Create boiler flowsheet, the main unit models are: 
# heat exchanger model: economizer, primary super heater, finishing superheater, and reheater
# heater model: water wall and platen superheater

m = flowsheet.boiler_flowsheet()

57072.5254836037
2023-03-04 01:30:26 [INFO] idaes.init.fs.ECON.cold_side: Initialization Complete
2023-03-04 01:30:26 [INFO] idaes.init.fs.ECON.hot_side.properties_in: Initialisation Complete, optimal - Optimal Solution Found.
2023-03-04 01:30:26 [INFO] idaes.init.fs.ECON.hot_side.properties_out: Initialisation Complete, optimal - Optimal Solution Found.
2023-03-04 01:30:26 [INFO] idaes.init.fs.ECON.hot_side.properties_out: fs.ECON.hot_side.properties_out State Released.
2023-03-04 01:30:26 [INFO] idaes.init.fs.ECON.hot_side: Initialization Complete
2023-03-04 01:30:26 [INFO] idaes.init.fs.ECON: fs.ECON Initialisation Step 1 Complete.
2023-03-04 01:30:26 [INFO] idaes.init.fs.ECON.hot_side.properties_in: fs.ECON.hot_side.properties_in State Released.
2023-03-04 01:30:26 [INFO] idaes.init.fs.ECON: fs.ECON Initialisation Complete.
2023-03-04 01:30:26 [INFO] idaes.init.fs.PrSH.cold_side: Initialization Complete
2023-03-04 01:30:26 [INFO] idaes.init.fs.PrSH.hot_side.properties_in: Initialisation Complete, optimal - Optimal Solution Found.
2023-03-04 01:30:26 [INFO] idaes.init.fs.PrSH.hot_side.properties_out: Initialisation Complete, optimal - Optimal Solution Found.
2023-03-04 01:30:26 [INFO] idaes.init.fs.PrSH.hot_side.properties_out: fs.PrSH.hot_side.properties_out State Released.
2023-03-04 01:30:26 [INFO] idaes.init.fs.PrSH.hot_side: Initialization Complete
2023-03-04 01:30:26 [INFO] idaes.init.fs.PrSH: fs.PrSH Initialisation Step 1 Complete.
2023-03-04 01:30:27 [INFO] idaes.init.fs.PrSH.hot_side.properties_in: fs.PrSH.hot_side.properties_in State Released.
2023-03-04 01:30:27 [INFO] idaes.init.fs.PrSH: fs.PrSH Initialisation Complete.
2023-03-04 01:30:27 [INFO] idaes.init.fs.FSH.cold_side: Initialization Complete
2023-03-04 01:30:27 [INFO] idaes.init.fs.FSH.hot_side.properties_in: Initialisation Complete, optimal - Optimal Solution Found.
2023-03-04 01:30:27 [INFO] idaes.init.fs.FSH.hot_side.properties_out: Initialisation Complete, optimal - Optimal Solution Found.
2023-03-04 01:30:27 [INFO] idaes.init.fs.FSH.hot_side.properties_out: fs.FSH.hot_side.properties_out State Released.
2023-03-04 01:30:27 [INFO] idaes.init.fs.FSH.hot_side: Initialization Complete
2023-03-04 01:30:27 [INFO] idaes.init.fs.FSH: fs.FSH Initialisation Step 1 Complete.
2023-03-04 01:30:27 [INFO] idaes.init.fs.FSH.hot_side.properties_in: fs.FSH.hot_side.properties_in State Released.
2023-03-04 01:30:27 [INFO] idaes.init.fs.FSH: fs.FSH Initialisation Complete.
2023-03-04 01:30:27 [INFO] idaes.init.fs.RH.cold_side: Initialization Complete
2023-03-04 01:30:27 [INFO] idaes.init.fs.RH.hot_side.properties_in: Initialisation Complete, optimal - Optimal Solution Found.
2023-03-04 01:30:27 [INFO] idaes.init.fs.RH.hot_side.properties_out: Initialisation Complete, optimal - Optimal Solution Found.
2023-03-04 01:30:27 [INFO] idaes.init.fs.RH.hot_side.properties_out: fs.RH.hot_side.properties_out State Released.
2023-03-04 01:30:27 [INFO] idaes.init.fs.RH.hot_side: Initialization Complete
2023-03-04 01:30:27 [INFO] idaes.init.fs.RH: fs.RH Initialisation Step 1 Complete.
2023-03-04 01:30:27 [INFO] idaes.init.fs.RH.hot_side.properties_in: fs.RH.hot_side.properties_in State Released.
2023-03-04 01:30:27 [INFO] idaes.init.fs.RH: fs.RH Initialisation Complete.
2023-03-04 01:30:27 [INFO] idaes.init.fs.PlSH.control_volume: Initialization Complete
2023-03-04 01:30:27 [INFO] idaes.init.fs.PlSH: Initialization Complete: optimal - Optimal Solution Found
2023-03-04 01:30:27 [INFO] idaes.init.fs.Water_wall.control_volume: Initialization Complete
2023-03-04 01:30:27 [INFO] idaes.init.fs.Water_wall: Initialization Complete: optimal - Optimal Solution Found
2023-03-04 01:30:27 [INFO] idaes.init.fs.Spl1.mixed_state: Initialisation Complete, skipped.
2023-03-04 01:30:27 [INFO] idaes.init.fs.Spl1.outlet_1_state: Initialisation Complete, skipped.
2023-03-04 01:30:27 [INFO] idaes.init.fs.Spl1.outlet_1_state: fs.Spl1.outlet_1_state State Released.
2023-03-04 01:30:27 [INFO] idaes.init.fs.Spl1.outlet_2_state: Initialisation Complete, skipped.
2023-03-04 01:30:27 [INFO] idaes.init.fs.Spl1.outlet_2_state: fs.Spl1.outlet_2_state State Released.
2023-03-04 01:30:27 [INFO] idaes.init.fs.Spl1: Initialization Step 2 Complete: optimal - Optimal Solution Found
2023-03-04 01:30:27 [INFO] idaes.init.fs.Spl1.mixed_state: fs.Spl1.mixed_state State Released.
2023-03-04 01:30:27 [INFO] idaes.init.fs.mix1.Reheat_out_state: Initialisation Complete, optimal - Optimal Solution Found.
2023-03-04 01:30:27 [INFO] idaes.init.fs.mix1.PrSH_out_state: Initialisation Complete, optimal - Optimal Solution Found.
2023-03-04 01:30:27 [INFO] idaes.init.fs.mix1.mixed_state: Initialisation Complete, optimal - Optimal Solution Found.
2023-03-04 01:30:27 [INFO] idaes.init.fs.mix1.mixed_state: fs.mix1.mixed_state State Released.
2023-03-04 01:30:27 [INFO] idaes.init.fs.mix1: Initialization Complete: optimal - Optimal Solution Found
2023-03-04 01:30:27 [INFO] idaes.init.fs.mix1.Reheat_out_state: fs.mix1.Reheat_out_state State Released.
2023-03-04 01:30:27 [INFO] idaes.init.fs.mix1.PrSH_out_state: fs.mix1.PrSH_out_state State Released.
2023-03-04 01:30:27 [INFO] idaes.init.fs.ATMP1: Initialization Complete: optimal - Optimal Solution Found
initialization done
Ipopt 3.13.2: nlp_scaling_method=gradient-based
tol=1e-06
max_iter=200


******************************************************************************
This program contains Ipopt, a library for large-scale nonlinear optimization.
 Ipopt is released as open source code under the Eclipse Public License (EPL).
         For more information visit http://projects.coin-or.org/Ipopt

This version of Ipopt was compiled from source code available at
    https://github.com/IDAES/Ipopt as part of the Institute for the Design of
    Advanced Energy Systems Process Systems Engineering Framework (IDAES PSE
    Framework) Copyright (c) 2018-2019. See https://github.com/IDAES/idaes-pse.

This version of Ipopt was compiled using HSL, a collection of Fortran codes
    for large-scale scientific computation.  All technical papers, sales and
    publicity material resulting from use of the HSL codes within IPOPT must
    contain the following acknowledgement:
        HSL, a collection of Fortran codes for large-scale scientific
        computation. See http://www.hsl.rl.ac.uk.
******************************************************************************

This is Ipopt version 3.13.2, running with linear solver ma27.

Number of nonzeros in equality constraint Jacobian...:     1177
Number of nonzeros in inequality constraint Jacobian.:        0
Number of nonzeros in Lagrangian Hessian.............:     1187

Total number of variables............................:      330
                     variables with only lower bounds:        8
                variables with lower and upper bounds:      128
                     variables with only upper bounds:        0
Total number of equality constraints.................:      330
Total number of inequality constraints...............:        0
        inequality constraints with only lower bounds:        0
   inequality constraints with lower and upper bounds:        0
        inequality constraints with only upper bounds:        0

iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr  ls
   0  0.0000000e+00 1.44e+06 1.00e+00  -1.0 0.00e+00    -  0.00e+00 0.00e+00   0
   1  0.0000000e+00 3.10e+06 5.70e+05  -1.0 2.77e+07    -  7.13e-01 1.00e+00h  1
   2  0.0000000e+00 8.18e+04 3.68e+04  -1.0 6.98e+05    -  9.70e-01 1.00e+00h  1
   3  0.0000000e+00 5.95e+01 6.29e+00  -1.0 1.59e+04    -  9.90e-01 1.00e+00h  1
   4  0.0000000e+00 5.52e-01 3.08e-03  -1.0 2.67e+03    -  9.90e-01 1.00e+00h  1
   5  0.0000000e+00 5.76e-07 1.01e-06  -1.0 2.29e-01    -  9.90e-01 1.00e+00h  1
Cannot recompute multipliers for feasibility problem.  Error in eq_mult_calculator

Number of Iterations....: 5

                                   (scaled)                 (unscaled)
Objective...............:   0.0000000000000000e+00    0.0000000000000000e+00
Dual infeasibility......:   3.1312476275258280e-02    3.1312476275258280e-02
Constraint violation....:   1.2665987014770508e-07    5.7648867368698120e-07
Complementarity.........:   0.0000000000000000e+00    0.0000000000000000e+00
Overall NLP error.......:   1.2665987014770508e-07    3.1312476275258280e-02


Number of objective function evaluations             = 6
Number of objective gradient evaluations             = 6
Number of equality constraint evaluations            = 6
Number of inequality constraint evaluations          = 0
Number of equality constraint Jacobian evaluations   = 6
Number of inequality constraint Jacobian evaluations = 0
Number of Lagrangian Hessian evaluations             = 5
Total CPU secs in IPOPT (w/o function evaluations)   =      0.026
Total CPU secs in NLP function evaluations           =      0.062

EXIT: Optimal Solution Found.

Problem: 
- Lower bound: -inf
  Upper bound: inf
  Number of objectives: 1
  Number of constraints: 330
  Number of variables: 330
  Sense: unknown
Solver: 
- Status: ok
  Message: Ipopt 3.13.2\x3a Optimal Solution Found
  Termination condition: optimal
  Id: 0
  Error rc: 0
  Time: 0.09927201271057129
Solution: 
- number of solutions: 0
  number of solutions displayed: 0

degrees of freedom = 0
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.ECON.hot_side.heat
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.ECON.cold_side.heat
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.ECON.overall_heat_transfer_coefficient[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.ECON.area
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.ECON.overall_heat_transfer_coefficient[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.ECON.area
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.ECON.N_Nu_tube[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.ECON.N_Nu_shell[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.ECON.hconv_shell_total[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.ECON.deltaP_tube_friction[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.PrSH.hot_side.heat
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.PrSH.cold_side.heat
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.PrSH.overall_heat_transfer_coefficient[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.PrSH.area
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.PrSH.overall_heat_transfer_coefficient[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.PrSH.area
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.PrSH.N_Nu_tube[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.PrSH.N_Nu_shell[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.PrSH.hconv_shell_total[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.PrSH.deltaP_tube_friction[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.FSH.hot_side.heat
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.FSH.cold_side.heat
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.FSH.overall_heat_transfer_coefficient[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.FSH.area
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.FSH.overall_heat_transfer_coefficient[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.FSH.area
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.FSH.N_Nu_tube[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.FSH.N_Nu_shell[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.FSH.hconv_shell_total[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.FSH.deltaP_tube_friction[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.RH.hot_side.heat
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.RH.cold_side.heat
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.RH.overall_heat_transfer_coefficient[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.RH.area
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.RH.overall_heat_transfer_coefficient[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.RH.area
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.RH.N_Nu_tube[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.RH.N_Nu_shell[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.RH.hconv_shell_total[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.RH.deltaP_tube_friction[0.0]
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.PlSH.control_volume.heat
2023-03-04 01:30:27 [WARNING] idaes.core.util.scaling: Missing scaling factor for fs.Water_wall.control_volume.heat
WARNING: model contains export suffix
    'fs.ATMP1.mixed_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.SprayWater_state[0.0].scaling_factor' that contains 66 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.Steam_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.mixed_state[0.0].scaling_factor' that contains 22 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.PrSH_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.Reheat_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_2_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_1_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.mixed_state[0.0].scaling_factor' that contains 20 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_out[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_in[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_out[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_in[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_in[0.0].scaling_factor' that contains 66
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_in[0.0].scaling_factor' that contains 24
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_in[0.0].scaling_factor' that contains 66
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.

3. Simplify to Mass and Energy Balances¶

For data reconciliation, the flowsheet model should be reduced to mass and energy balances and potentially limited performance constraints to keep the results feasible.

In [6]:

# Deactivate constraints for heat transfer (for all heat exchanger units)
# for example to deactivate heat transfer calculation in the economizer we include:
# m.fs.ECON.overall_heat_transfer_coefficient_eqn.deactivate()

# The method "deactivate_performance_constraints" deactivates the equations for all 
# heat exchangers in this flowsheet (Economizer, Primary Superheater, 
#                                    Finishing Superheater, Reheater)
flowsheet.deactivate_performance_constraints(m)

# Now the model has 12 DoF 
# deltaP shell and tube, and U - overall heat transfer coefficient in 4 hx models

degrees of freedom = 12

4. Map Data to the Model¶

Although the model mapping can be added to the tag metadata file, here we just add the mapping information to the tag metadata after reading the data.

In [7]:

# Water/Steam Measurements ----------------------------------------------- #
# Economizer inputs
df_meta["BFW_F"]["reference_string"] = "m.fs.ECON.cold_side.properties_in[:].flow_mol"
df_meta["BFW_T"]["reference_string"] = "m.fs.ECON.cold_side.properties_in[:].temperature"
df_meta["BFW_P"]["reference_string"] = "m.fs.ECON.cold_side.properties_in[:].pressure"

# Economizer outputs
df_meta["ECON_OUT_T"]["reference_string"] = "m.fs.ECON.cold_side.properties_out[:].temperature"
df_meta["ECON_OUT_P"]["reference_string"] = "m.fs.ECON.cold_side.properties_out[:].pressure"

# Reheater inputs 
df_meta['RHT_COLD_T']["reference_string"] = "m.fs.RH.cold_side.properties_in[:].temperature"
df_meta['RHT_COLD_P']["reference_string"] = "m.fs.RH.cold_side.properties_in[:].pressure"
df_meta['RHT_COLD_F']["reference_string"] = "m.fs.RH.cold_side.properties_in[:].flow_mol"

# Reheater outputs 
df_meta['RHT_HOT_T']["reference_string"] = "m.fs.RH.cold_side.properties_out[:].temperature"
df_meta['RHT_HOT_P']["reference_string"] = "m.fs.RH.cold_side.properties_out[:].pressure"

# primary SH outlet
df_meta['PlatenSH_IN_P']["reference_string"] = "m.fs.PrSH.cold_side.properties_out[:].pressure"

# Platen SH outlet inlet to Finishing SH
df_meta['FSH_In_P']["reference_string"] = "m.fs.PrSH.cold_side.properties_in[:].pressure"

# Finishing SH outlet ----------------------------------------------------- #
# Main Steam 
df_meta['MS_T']["reference_string"] = "m.fs.ATMP1.mixed_state[:].temperature"
df_meta['MS_P']["reference_string"] = "m.fs.ATMP1.mixed_state[:].pressure"
df_meta['MS_F']["reference_string"] = "m.fs.ATMP1.mixed_state[:].flow_mol"

# Flue Gas measurements
# Finishing inputs
df_meta['FG_2_FSH_Fm']["reference_string"] = "m.fs.FSH.hot_side.properties_in[:].flow_mass"
df_meta['FG_2_FSH_T']["reference_string"] = "m.fs.FSH.hot_side.properties_in[:].temperature"
df_meta['FG_2_FSH_P']["reference_string"] = "m.fs.FSH.hot_side.properties_in[:].pressure"

# Reheater inputs
df_meta['FG_2_RH_T']["reference_string"] = "m.fs.RH.hot_side.properties_in[:].temperature"
df_meta['FG_2_RH_P']["reference_string"] = "m.fs.RH.hot_side.properties_in[:].pressure"

# Primary SH inputs
df_meta['FG_2_PrSH_Fm']["reference_string"] = "m.fs.PrSH.hot_side.properties_in[:].flow_mass"
df_meta['FG_2_PrSH_T']["reference_string"] = "m.fs.PrSH.hot_side.properties_in[:].temperature"
df_meta['FG_2_PrSH_P']["reference_string"] = "m.fs.PrSH.hot_side.properties_in[:].pressure"

# Economizer inputs
df_meta["FG_2_ECON_P"]["reference_string"] = "m.fs.ECON.hot_side.properties_in[:].pressure"

# Economizer outputs
df_meta["FG_2_AIRPH_T"]["reference_string"] = "m.fs.ECON.hot_side.properties_out[:].temperature"
df_meta["FG_2_AIRPH_P"]["reference_string"] = "m.fs.ECON.hot_side.properties_out[:].pressure"

# --------------------------------------------------------------------------------------- #
# Other inputs available in the data set (but not used as measurements in this study)
df_meta["ECON_OUT_F"]["reference_string"] = "m.fs.ECON.cold_side.properties_out[:].flow_mol"
df_meta['RHT_HOT_F']["reference_string"] = "m.fs.RH.cold_side.properties_out[:].flow_mol"
df_meta['FG_2_RH_Fm']["reference_string"] = "m.fs.RH.hot_side.properties_in[:].flow_mass"
df_meta["FG_2_ECON_Fm"]["reference_string"] = "m.fs.ECON.hot_side.properties_in[:].flow_mass"
df_meta["FG_2_ECON_T"]["reference_string"] = "m.fs.ECON.hot_side.properties_in[:].temperature"
df_meta["FG_2_AIRPH_Fm"]["reference_string"] = "m.fs.ECON.hot_side.properties_out[:].flow_mass"

df_meta['FG_RH_2_Mix_Fm']["reference_string"] = "m.fs.RH.hot_side.properties_out[:].flow_mass"
df_meta['FG_RH_2_Mix_T']["reference_string"] = "m.fs.RH.hot_side.properties_out[:].temperature"
df_meta['FG_RH_2_Mix_P']["reference_string"] = "m.fs.RH.hot_side.properties_out[:].pressure"

df_meta['FG_PrSH_2_Mix_Fm']["reference_string"] = "m.fs.PrSH.hot_side.properties_out[:].flow_mass"
df_meta['FG_PrSH_2_Mix_T']["reference_string"] = "m.fs.PrSH.hot_side.properties_out[:].temperature"
df_meta['FG_PrSH_2_Mix_P']["reference_string"] = "m.fs.PrSH.hot_side.properties_out[:].pressure"

df_meta['FG_2_ECON_Fm']["reference_string"] = "m.fs.ECON.hot_side.properties_in[:].flow_mass"
df_meta['FG_2_ECON_T']["reference_string"] = "m.fs.ECON.hot_side.properties_in[:].temperature"
df_meta['FG_2_ECON_P']["reference_string"] = "m.fs.ECON.hot_side.properties_in[:].pressure"

df_meta['FG_2_AIRPH_Fm']["reference_string"] = "m.fs.ECON.hot_side.properties_out[:].flow_mass"
df_meta['FG_2_AIRPH_T']["reference_string"] = "m.fs.ECON.hot_side.properties_out[:].temperature"
df_meta['FG_2_AIRPH_P']["reference_string"] = "m.fs.ECON.hot_side.properties_out[:].pressure"

In [8]:

# Add the model references to the tag metadata based on the strings above.
da.upadate_metadata_model_references(m, df_meta)

In [9]:

# Create a ModelTagGroup to hold the references that we want to use for the data reconciliation problem.  
# The name is the tag and the expr is a reference to a quantity in the model.
from idaes.core.util.tags import ModelTagGroup

data_tags = ModelTagGroup()

for k, v in df_meta.items():
    if v["reference"] is not None:
        data_tags.add(expr=v["reference"][0], name=k, format_string="{:.3f}")

In [10]:

# The output from the data reconciliation step usually gives full stream information
# for a flowsheet including quantities that are unmeasured. To use the results more easily, 
# it is good practice to map most of the data reconciliation results to flowsheet stream names.
import idaes.core.util.tables as ta
from idaes.core.util.tags import ModelTagGroup

stream_dict = ta.arcs_to_stream_dict(
    m, 
    additional={
        'MS': m.fs.ATMP1.mixed_state,
        'ATMP_In': m.fs.FSH.cold_side.properties_out,
        'FSH_In': m.fs.FSH.cold_side.properties_in,
        'PrSH_IN': m.fs.PrSH.cold_side.properties_in,
        'RHT_COLD': m.fs.RH.cold_side.properties_in,
        'RHT_HOT': m.fs.RH.cold_side.properties_out,
        'PlatenSH_IN': m.fs.PlSH.control_volume.properties_in,
        'BFW': m.fs.ECON.cold_side.properties_in,
        'ECON_OUT': m.fs.ECON.cold_side.properties_out,
        'FG_2_FSH': m.fs.FSH.hot_side.properties_in,
    },
    sort=True,
)

state_dict = ta.stream_states_dict(stream_dict, time_point=0)

recon_tags = ModelTagGroup()

prop_dict = {
    "flow_mass": "_Fm",
    "flow_mol": "_F",
    "enth_mol": "_h",
    "temperature": "_T",
    "pressure": "_P",
}
comp_list = ["O2", "NO", "N2", "SO2", "CO2", "H2O"]

for state, block in state_dict.items():
    for prop, suffix in prop_dict.items():
        comp = getattr(block, prop)
        recon_tags.add(expr=comp, name=state+suffix, format_string="{:.3f}")
    # Add tags for molar flow rates of each component
    for j in comp_list:
        # Not all components appear in all streams
        try:
            comp = block.flow_mol_comp[j]
            recon_tags.add(expr=comp, name=f"{state}_F[{j}]", format_string="{:.3f}")
        except KeyError:
            pass

# add additional model variables
recon_tags.add("coal_flow", m.fs.coal_flow, format_string="{:.3f}")
recon_tags.add("stoich_ratio", m.fs.SR, format_string="{:.3f}")

5. View Model Flowsheet¶

Model results or other quantities can be added to a process flow diagram. The PFD was drawn beforehand and the model results are added to tagged locations on the PFD.

In [11]:

from idaes.core.util.tags import svg_tag  # utility to place numbers/text in an SVG

with open("Boiler_scpc_PFD.svg", "r") as f:
    s = svg_tag(svg=f, tag_group=data_tags, outfile="boiler_scpc_init.svg")

In [12]:

from IPython.display import SVG, display

display(SVG(s))

6. Write Objective¶

Next we write the objective function and additional constraints for the data reconciliation problem. The objective is

$$\min \sum_i \left(\frac{x_{\text{data}, i} - x_{\text{model}, i}}{\sigma_i} \right)^2$$

Where $i \in \{\text{Measured Quantities}\}$ and $\sigma_i$ is the standard deviation of measurement i estimated by binning the data.

In [13]:

# Add model parameters to contain measured data.  These are mutable so we can set a specific 
# change to specific data points later.
m.data = pyo.Param(data_tags, mutable=True, doc="Process data for a specific point in time.")
m.data_stdev = pyo.Param(data_tags, mutable=True, doc="Process data standard deviation.")

In [14]:

# The 'set_data' function below takes data from the model DataFrame and updates the
# model data parameters.
# fix tags dictionary is used to fix model inputs to their values in the data set (for each data point)
# in this case Boiler Feed Water = inlet to economizer and Reheater Cold = Reheater inlet
def set_data(m, df, data_tags, index=None, indexindex=None):
    if index is None:
        index = df.index[indexindex]
    m.bin_no = df.iloc[index]["bin_no"]
    for t in data_tags:
        m.data[t] = df.iloc[index][t]
        m.data_stdev[t] = bin_stdev[m.bin_no][t]

In [15]:

# So we have something reasonable to start, set the data attached to the model to the first 
# data point.
set_data(m, df, data_tags, indexindex=0)

Add an expression for error divided by the standard deviation, and use it to write the data reconciliation objective function.

In [16]:

m.tags_obj = [
    'BFW_F', 
    'BFW_T', 
    'BFW_P',        
    "RHT_COLD_F", 
    "RHT_COLD_T", 
    "RHT_COLD_P",
    "ECON_OUT_T",
    "ECON_OUT_P",
    "RHT_HOT_T",
    "RHT_HOT_P",
    "MS_T", 
    "MS_P", 
    "FG_2_ECON_P",
    "FG_2_AIRPH_T",
    "FG_2_AIRPH_P",
    "FG_RH_2_Mix_T",
    "FG_RH_2_Mix_P",
    "FG_RH_2_Mix_Fm",
    "FG_2_FSH_P",
    "FG_2_FSH_T",
    "FG_PrSH_2_Mix_T",
    "FG_PrSH_2_Mix_P",
    "FG_PrSH_2_Mix_Fm",
]

@m.Expression(data_tags)
def err(m, i):
    return (m.data[i] - data_tags[i].expression)/m.data_stdev[i]

m.objective = pyo.Objective(expr=sum(m.err[t]**2 for t in data_tags))

7. Solve Optimization¶

Now we need to solve the data reconciliation problem for every data point. The important results are stored in two DataFrames df_result which contains results tagged based on model stream names to be used in the parameter estimation step and df_result_cmp which contains reconciled data based on the original measurement tags and can be used to compare the original measurements to the reconciled results.

In [17]:

# Add constraints or fix variable bounds to ensure reasonable flowsheet performance (i.e. LMTD, negative pressure drop, etc.).
# In this case, before solving the data reconciliation problem
# unfix the coal flowarate, stoichiometric ratio, and split fraction (flue gas to Reheater)

# Surrogate models have been trained using a rigorous boiler fire side model 
# with fixed wall temperature and variable fuel flowrate and stoichiometric ratio.
m.fs.coal_flow.unfix()
m.fs.coal_flow.setub(70.0)
m.fs.coal_flow.setlb(30.0)
m.fs.SR.unfix() # stoichiometric ratio 
m.fs.Spl1.split_fraction[0,'outlet_1'].unfix()

# Surrogate models are used for Flue Gas Exit Temperature, flue gas component molar flowrate,
# and heat duty to the platen superheater and water wall
m.fs.FSH.hot_side.properties_in[:].temperature.unfix()
m.fs.FSH.hot_side.properties_in[:].pressure.fix()
m.fs.FSH.hot_side.properties_in[0].temperature.setub(1800)
m.fs.FSH.hot_side.properties_in[0].temperature.setlb(1200)

# unfix flowsheet inlets
m.fs.ECON.cold_side_inlet.unfix()
m.fs.RH.cold_side_inlet.unfix()

In [18]:

solver = pyo.SolverFactory('ipopt')
solver.options = {'tol': 1e-6,
                   'halt_on_ampl_error': 'no',
                   'max_iter': 250}

In [19]:

import pandas as pd
# add bin information to reconciliation results so it can be used in parameter estimation
df_result = pd.DataFrame(columns=list(recon_tags.keys())+["termination", "bin_no", "bin_power"], index=df.index)
df_result_cmp = pd.DataFrame(columns=list(data_tags.keys())+["termination"], index=df.index)

for i in df.index:
    set_data(m, df, data_tags, index=i)
    try:
        res = solver.solve(m)
        tc = str(res.solver.termination_condition)
        if tc != 'optimal':
            ms.from_json(m, fname="optimal_run.json.gz")
            set_data(m, df, data_tags, index=i)
            res = solver.solve(m)
            tc = str(res.solver.termination_condition)
    except:
        tc = "fail"
    df_result.iloc[i]["termination"] = tc
    df_result.iloc[i]["bin_no"] = df.iloc[i]["bin_no"]
    df_result.iloc[i]["bin_power"] = df.iloc[i]["bin_power"]
    df_result_cmp.iloc[i]["termination"] = tc
    for t in recon_tags:
        df_result.iloc[i][t] = pyo.value(recon_tags[t].expression)
    for t in data_tags:
        df_result_cmp.iloc[i][t] = pyo.value(data_tags[t].expression)
    print(f"{i} -- {tc}, objective: {pyo.value(m.objective)}")

    # save first solution to be used as initial point
    if i == 0:
        ms.to_json(m, fname='optimal_run.json.gz')
    
    # break after 10 runs to keep the example short
    if i > 10:
        break
    # to see the full results see file boiler_plant_recon.csv

WARNING: model contains export suffix
    'fs.ATMP1.mixed_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.SprayWater_state[0.0].scaling_factor' that contains 66 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.Steam_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.mixed_state[0.0].scaling_factor' that contains 22 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.PrSH_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.Reheat_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_2_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_1_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.mixed_state[0.0].scaling_factor' that contains 20 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_out[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_in[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_out[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_in[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_in[0.0].scaling_factor' that contains 24
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
0 -- optimal, objective: 4269.2231638387475
WARNING: model contains export suffix
    'fs.ATMP1.mixed_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.SprayWater_state[0.0].scaling_factor' that contains 66 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.Steam_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.mixed_state[0.0].scaling_factor' that contains 22 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.PrSH_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.Reheat_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_2_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_1_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.mixed_state[0.0].scaling_factor' that contains 20 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_out[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_in[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_out[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_in[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_in[0.0].scaling_factor' that contains 24
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
1 -- optimal, objective: 4039.5675278810363
WARNING: model contains export suffix
    'fs.ATMP1.mixed_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.SprayWater_state[0.0].scaling_factor' that contains 66 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.Steam_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.mixed_state[0.0].scaling_factor' that contains 22 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.PrSH_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.Reheat_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_2_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_1_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.mixed_state[0.0].scaling_factor' that contains 20 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_out[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_in[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_out[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_in[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_in[0.0].scaling_factor' that contains 24
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
2 -- optimal, objective: 4091.9800779488737
WARNING: model contains export suffix
    'fs.ATMP1.mixed_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.SprayWater_state[0.0].scaling_factor' that contains 66 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.Steam_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.mixed_state[0.0].scaling_factor' that contains 22 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.PrSH_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.Reheat_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_2_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_1_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.mixed_state[0.0].scaling_factor' that contains 20 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_out[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_in[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_out[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_in[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_in[0.0].scaling_factor' that contains 24
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
3 -- optimal, objective: 4066.848712851215
WARNING: model contains export suffix
    'fs.ATMP1.mixed_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.SprayWater_state[0.0].scaling_factor' that contains 66 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.Steam_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.mixed_state[0.0].scaling_factor' that contains 22 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.PrSH_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.Reheat_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_2_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_1_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.mixed_state[0.0].scaling_factor' that contains 20 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_out[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_in[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_out[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_in[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_in[0.0].scaling_factor' that contains 24
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
4 -- optimal, objective: 5367.131684735371
WARNING: model contains export suffix
    'fs.ATMP1.mixed_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.SprayWater_state[0.0].scaling_factor' that contains 66 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.Steam_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.mixed_state[0.0].scaling_factor' that contains 22 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.PrSH_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.Reheat_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_2_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_1_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.mixed_state[0.0].scaling_factor' that contains 20 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_out[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_in[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_out[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_in[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_in[0.0].scaling_factor' that contains 24
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
5 -- optimal, objective: 4172.555260264595
WARNING: model contains export suffix
    'fs.ATMP1.mixed_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.SprayWater_state[0.0].scaling_factor' that contains 66 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.Steam_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.mixed_state[0.0].scaling_factor' that contains 22 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.PrSH_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.Reheat_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_2_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_1_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.mixed_state[0.0].scaling_factor' that contains 20 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_out[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_in[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_out[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_in[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_in[0.0].scaling_factor' that contains 24
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
6 -- optimal, objective: 5446.540858579715
WARNING: model contains export suffix
    'fs.ATMP1.mixed_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.SprayWater_state[0.0].scaling_factor' that contains 66 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.Steam_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.mixed_state[0.0].scaling_factor' that contains 22 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.PrSH_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.Reheat_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_2_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_1_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.mixed_state[0.0].scaling_factor' that contains 20 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_out[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_in[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_out[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_in[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_in[0.0].scaling_factor' that contains 24
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
7 -- optimal, objective: 4065.7549100073456
WARNING: model contains export suffix
    'fs.ATMP1.mixed_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.SprayWater_state[0.0].scaling_factor' that contains 66 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.Steam_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.mixed_state[0.0].scaling_factor' that contains 22 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.PrSH_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.Reheat_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_2_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_1_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.mixed_state[0.0].scaling_factor' that contains 20 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_out[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_in[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_out[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_in[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_in[0.0].scaling_factor' that contains 24
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
8 -- optimal, objective: 5122.299233579323
WARNING: model contains export suffix
    'fs.ATMP1.mixed_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.SprayWater_state[0.0].scaling_factor' that contains 66 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.Steam_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.mixed_state[0.0].scaling_factor' that contains 22 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.PrSH_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.Reheat_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_2_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_1_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.mixed_state[0.0].scaling_factor' that contains 20 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_out[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_in[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_out[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_in[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_in[0.0].scaling_factor' that contains 24
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
9 -- optimal, objective: 5056.694638626859
WARNING: model contains export suffix
    'fs.ATMP1.mixed_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.SprayWater_state[0.0].scaling_factor' that contains 66 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.Steam_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.mixed_state[0.0].scaling_factor' that contains 22 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.PrSH_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.Reheat_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_2_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_1_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.mixed_state[0.0].scaling_factor' that contains 20 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_out[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_in[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_out[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_in[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_in[0.0].scaling_factor' that contains 24
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
10 -- optimal, objective: 4113.68748106739
WARNING: model contains export suffix
    'fs.ATMP1.mixed_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.SprayWater_state[0.0].scaling_factor' that contains 66 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ATMP1.Steam_state[0.0].scaling_factor' that contains 63 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.mixed_state[0.0].scaling_factor' that contains 22 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.PrSH_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.mix1.Reheat_out_state[0.0].scaling_factor' that contains 22 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_2_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.outlet_1_state[0.0].scaling_factor' that contains 20 component
    keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Spl1.mixed_state[0.0].scaling_factor' that contains 20 component keys
    that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_out[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.Water_wall.control_volume.properties_in[0.0].scaling_factor' that
    contains 63 component keys that are not exported as part of the NL file.
    Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_out[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PlSH.control_volume.properties_in[0.0].scaling_factor' that contains
    63 component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.RH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.FSH.hot_side.properties_in[0.0].scaling_factor' that contains 24
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.PrSH.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_out[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.cold_side.properties_in[0.0].scaling_factor' that contains 63
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_out[0.0].scaling_factor' that contains 22
    component keys that are not exported as part of the NL file.  Skipping.
WARNING: model contains export suffix
    'fs.ECON.hot_side.properties_in[0.0].scaling_factor' that contains 23
    component keys that are not exported as part of the NL file.  Skipping.
11 -- optimal, objective: 2660.0308164635217

In [20]:

# Save the reconciled data to be used for parameter estimation
df_result.to_csv("boiler_plant_recon_short.csv")
# a smaller subset of data points have been run to keep the simulation time short,
# however the full set of results can be found in boiler_plant_recon.csv

In [21]:

# assert algorithm works fine
assert df_result.iloc[1]["termination"] == "optimal"

In [ ]: