Objective
This article elucidates the role and functionality of ASAP variables, which form the universal variable system in the OLI engine.
What Are ASAP variables?
ASAP variables form the backbone of the variable framework utilized across all OLI Systems products. They serve as the internal language that drives the OLI engine calculations.
The OLI Chemistry Wizard and OLI Regression Tools depend on ASAP variables to create model files. While many users may not interact directly with these variables during standard simulations, they are integral to solving the complex equations behind OLI's predictive capabilities.
In advanced applications, such as creating user-defined kinetic equations, users may employ ASAP variables, as shown in the OLI Flowsheet: ESP kinetics entry window below.
Key Resources
A comprehensive list of ASAP variables and their default units for the three thermodynamic frameworks—AQ, MSE, and MSE-SRK—can be found in the three tabs of the attached spreadsheet, respectively.
Example Usage
Brief example of how to interpret the spreadsheet:
- To represent the mole fraction of the chloride ion in the Liquid-1 phase, the ASAP variable “CLION” would be used.
Conclusion
In this article, we reviewed the definition and supplied a list of ASAP variables in the OLI software. If you have any questions about implementing or interpreting ASAP variables, please submit a support ticket at support.olisystems.com.