Calculation of Thermophysical Properties in the Modelica Library TechThermo
Wolf‐Dieter Steinmann · elib (German Aerospace Center) · 2005
Many physical models describing thermodynamic systems require correlations for thermophysical properties to complete the set of equations. A Modelica library like TechThermo which is intended for general application in technical thermodynamics must include also a set of models for calculation of thermophysical properties. Since the total number of models in TechThermo should be limited, the range of application for selected model must be as wide as possible. The models for calculation of thermophysical properties in TechThermo are based on general concepts which allow the introduction of new working media by modification of a few model parameters. Models for calculation of multiphase or multicomponent media are composed of models representing single phase behaviour and mixing models.