Regression Library
- Last UpdatedMay 16, 2024
- 3 minute read
The Regression Library is an example Model Library that provides models for the regression of:
-
Pure component temperature-dependent correlations.
-
Binary interaction parameters for a selected pairs of components and a selected equation of state (EOS) or liquid activity coefficient (LACT) method.
-
Binary interaction parameters for a selected pairs of components and a LACT method with reactions included.
Because this Model Library is an example Model Library, you must first import it into AVEVA Process Simulation to use its models in your simulations. You can import this Model Library from the %userprofile%\My Libraries\Examples folder.
The following table lists the models that are available in this Model Library. The table includes very brief descriptions for each model. The Model Help in the AVEVA Process Simulation user interface contains more detailed information for these models. See Open the Model Help for a Model Type or Model Library for more information.
|
Name |
Type |
Description |
|---|---|---|
|
OptimizationSettings |
Model |
Provides advanced optimization parameters that help you debug and fix issues with your optimization runs. We recommend that only advanced users modify these settings when they want to generate reports and perform detailed analysis on solver performance. |
|
Pure |
Model |
Contains all the variables, parameters, and equations needed to regress the correlation coefficients for a pure component temperature-dependent property. You should attach a Pure model to a PureData model. The PureData model should always be downstream of the Pure model. To regress correlation coefficients, you must create and run an Optimization Set that minimizes the TotalError variable of the Pure model. See the Model Help for the Regression Library for more information. |
|
PureData |
Model |
Contains a measured data set that you can use to regress a pure component temperature-dependent property. The data set should include only temperature and property value data. You should attach a PureData model to a Pure model. The Pure Data model should always be downstream of the Pure model. |
|
PureProp* |
Submodel |
Retrieves the correlation coefficients used for a specified temperature-dependent property for a specified single pure component. |
|
Reactions |
Submodel |
Serves as a generic reaction submodel that the VLE model from the Regression Library uses for regressing the coefficient values for the equilibrium reaction constant equation. |
|
RegressionState* |
Submodel |
Serves as a fluid state submodel that you can use as the State model in your Fluid Types. The Fluid Type must have a Thermo Type value of Compositional to use this fluid state submodel. |
|
SolverSettings |
Model |
Provides advanced diagnostic options to debug and fix model issues. We recommend that only advanced users modify these settings when they want to generate reports and perform detailed analysis on solver performance. |
|
VLE |
Model |
Contains all the variables, parameters, and equations needed to regress the binary interaction parameters for selected pairs of components for the selected EOS or LACT method. You should attach a VLE model to a VLEData model. The VLEData model should always be downstream of the VLE model. To regress the binary interaction parameters, you must create and run an Optimization Set that minimizes the TotalError variable of the VLE model. See the Model Help for the Regression Library for more information. |
|
VLEData |
Model |
Contains a measured data set that you can use to regress binary interaction parameters for a selected EOS or LACT method. You should attach a VLEData model to a VLE model. The VLEData model should always be downstream of the VLE model. |
|
VLEPoint* |
Submodel |
Serves as the container for the measured data set for regressing binary interaction parameters for a specified pair of components and the selected thermodynamic method. |
|
VLEProp* |
Submodel |
Retrieves the binary interaction parameters for a specified set of components and the selected thermodynamic method. You can either retrieve the interaction parameters directly from a specified Fluid Type or regress the interaction parameters based on the selected thermodynamic method. |
* Only Model Writers can view these submodels.