Different Aspen modules use different thermodynamic equations
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Aspen allows different thermodynamic methods to be set for various modules; I would like to understand how these different thermodynamic methods are connected to each other (Using T-P, T-H, etc.) How is this connection method set up and changed?
I’m not quite familiar with the method of connection; in my understanding, there is no connection between different modules – the output of the upper module serves as the input for the lower module, and the calculations are carried out separately. The upper and lower modules use different thermodynamic methods, so no connection is necessary.
Thermodynamic methods should depend only on the composition of the system. In ASPEN, different thermodynamic methods can be selected for various modules within the same process flow; these modules are connected through streams, and generally there is no need to link the thermodynamic methods together.
There are no connection issues; each unit performs its calculation as an independent operation, being linked only to the materials and not related to the process