Polynomial Objective Functions for Flash Calculations: Binary, Ternary, and Quaternary Systems

John H. Warren, Michael A. Adewumi

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

Polynomial objective functions are developed for the vapor fraction in vapor-liquid equilibrium flash calculations for binary, ternary, and quaternary systems. The form of the polynomial suggests possible expansion to N-component systems. An extensive testing of these objective functions was performed using experimental data for binary systems. Comparative analysis with traditional Rachford-Rice objective function demonstrates better predictive capability and improved computational strategy for the new form. Comparison between predictions and experimental data shows a good match, even for cases where the Rachford-Rice objective function fails to yield realistic results.

Original languageEnglish (US)
Pages (from-to)1528-1530
Number of pages3
JournalIndustrial and Engineering Chemistry Research
Volume32
Issue number7
DOIs
StatePublished - Jan 1 1993

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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