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Effective utilization of equations of state for thermodynamic properties in process simulation

✍ Scribed by P. M. Mathias; J. F. Boston; S. Watanasiri

Publisher
American Institute of Chemical Engineers
Year
1984
Tongue
English
Weight
562 KB
Volume
30
Category
Article
ISSN
0001-1541

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✦ Synopsis

Thermodynamic property computations using equations of state first require computation of the density root. Since higher level calculations such as single-stage flash, distillation and data regression are usually performed iteratively, properties are often demanded at conditions where the appropriate density root does not exist. A strategy of returning suitable pseudoproperties under such conditions is proposed. It has been successfully used in ASPEN (Advanced System for Process Engineering), a general process simulator developed at the Massachusetts Institute of Technology.

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