![]() ![]() Main aim of the Thermodynamics-Module development was the creation of an efficient and full featured program package for thermodynamic calculations. Table 33: Binary interaction parameters for Wilson, NRTL and UNIQUAC models and. The Wilson model is used to predict several dimensionless excess thermodynamic properties, such as the Gibbs free energy,, enthalpy,, entropy,, and heat capacity. Members of IK-CAPE are the companies BASF, Bayer, Hoechst, Degussa-Hüls and Dow. improve the performance of predictive thermodynamic models was confirmed. Thus, the chemical equilibria between clusters should be taken into account in order to develop a reliable thermodynamic model. IK-CAPE's mission is to define open system standards on the fields of Computer Aided Process Engineering. The IK-CAPE Thermodynamics-Module has been developed from the members of the german Industrie Konsortium CAPE ( Industrial Cooperation Computer Aided Process Engineering). Who developed the IK-CAPE Thermodynamics-Module ? They can also differ in number and kind of the components and also the thermodynamic models used for property calculations. For a single component they can differ in the properties, coefficients and equations used. of this handbook all models included inside the IK-CAPE Thermodynamics Package are documented. Wilsons equation provides a good representation of the Gibbs excess free energy for a. The different property systems are totally independent from each other. Calculation models for the liquid phase activity coefficient. Partioning the flowsheet in several independent property systems can allow a considerable decrease in the number of equations and therefore calculation time. EOS Enthalpy Calculation The Lee-Kesler enthalpies may With any the. Another example is the simulation of large process flowsheets. Enthalpy calculations for this model will be performed using the Lee Kesler model. This feature enables one, for example to describe the physical properties on both sides of a heat exchanger independent from the other side. ![]() The Thermodynamics-Module can handle several property systems simultaneous. One can do this either by reading a file containg properties, coefficients and calculation options for the actual project or by calling a set of public interface functions for filling the structures. When using the module, these structures have to be initialized before starting the calculations. These internal structures are invisible to external users. The public interface functions of the module are using internal structures. The module offers the calculation of thermodynamic properties to calling CAPE programs. The Thermodynamics-Package is realised as an independent module. What is the IK-CAPE Thermodynamics-Module ? ![]()
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