An attempt has been made to enhance
the thermodynamic capability
of the general purpose modeling and simulation environment OpenModelica.
The property database ChemSep and the thermodynamic algorithms of
DWSIM are made available in OpenModelica. The following three approaches,
listed in the order of increasing computational efficiency, are attempted
in this work: Python-C API, socket programming, and a native port.
The most efficient method of native port is adopted
to make available NRTL, Peng–Robinson, UNIFAC, and UNIQUAC
algorithms in OpenModelica. Through several examples, OpenModelica
results are compared with Aspen Plus, indicating a good match in all
cases. This work is released as an open source to enhance the collaboration
among chemical engineers.
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