Exergy (or availability) calculations may be requested by the user by selecting the Miscellaneous Data option of the Input menu and checking the Include Exergy Analysis check box. When requested, exergy calculations are performed in the final stages of writing the PRO/II output report. As such, exergy calculations are not available during, and in no way whatsoever affect, flowsheet convergence. Exergy results appear after the Stream Summary reports in the PRO/II output report. The availability function, B, is defined as:
B = H - TS
where:
H = enthalpy
T = temperature
S = entropy
About PRO/II: PRO/II is the major product in the Process Engineering Suite (PES). This process simulation software optimizes plant performance by improving process design, operational analysis, and performing engineering studies. It is designed to perform rigorous heat and material balance calculations for a wide range of chemical processes. PRO/II allows users to evaluate the use of heat integration with case studies, rigorously evaluate process improvements with the help of a process flow diagram (PFD), or model crude distillation units. PRO/II offers a wide variety of thermodynamic models to virtually every industry and is incredibly cost effective, decreasing both capital and operating costs. Technical Support: As always, feel free to reach out to your local technical support team
Tuesday, 14 May 2013
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