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Proceedings of Symposium on Energy Engineering in the 21<sup>st</sup> Century (SEE2000) Volume I-IV

ISSN:
1-56700-132-7 (Print)

SUPERHEAT LIMIT OF LIQUID MIXTURES

Chao Liu
College of Thermal Engineering Chongqing University, Chongqing 400044, China

Danling Zeng
College of Thermal Engineering Chongqing University Chongqing, 400044, China

Keqiang Xing
College of Thermal Engineering Chongqing University Chongqing, 400044, China

Abstract

The superheat limit of liquid mixtures is determined on the basis of fluctuation theory of statistical thermodynamics. Analytical results for superheat limits about 28 kinds of different mixtures have been compared to published experimental data for hydrocarbon and non-hydrocarbon mixtures by the help of Peng-Robinson equation. The comparison shows a good agreement. The expressions given in the paper are universal and applicable for any mixtures of liquids to predict their superheat limit so that neither additional experimental factors nor partial constraints need to be added on them.