JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Print ISSN : 0021-9592
Physical Properties and Physical Chemistry
Modified Vapor Pressure Model Based on Corresponding-States Principle for Pure and Mixed Refrigerants
Yanjun SunXiaopo WangLiwen JinZhigang Liu
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2017 Volume 50 Issue 11 Pages 807-814

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Abstract

In this paper, a modified three-parameter Lee–Kesler-like corresponding states model is presented to calculate the vapor pressure of pure refrigerants and refrigerant mixtures by using two reference fluids (R13 and R227ea). A new scaling parameter is proposed in the model to substitute for the classical acentric factor. The modified model shows a good accuracy over a wide range of temperatures and especially in the low-temperature region when compared to other Lee–Kesler-like corresponding states models such as Lee–Kesler, Teja, and Estela-Uribe.

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© 2017 The Society of Chemical Engineers, Japan
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