Measurements of the vapour-liquid coexistence curve in the critical region and of the critical parameters for several alternative refrigerants

Shigeo Kuwabara; Haruki Sato; Koichi Watanabe

Measurements of the vapour-liquid coexistence curve in the critical region and of the critical parameters for several alternative refrigerants

Shigeo Kuwabara, Haruki Sato, Koichi Watanabe

Department of System Design Engineering

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

The critical temperatures and densities have been determined by visual observation of the disappearance of the meniscus at the vapour-liquid coexistence for the seven alternative refrigerants; HFC-32, HCFC-123, HFC-125, HFC-134, HFC-134a, HCFC-142b, and HFC-152a. In addition to the original data for HFC-32 and HFC-125 reported in this paper, the data of HCFC-123, HFC-134, HFC-134a, HCFC-142b, and HFC-152a which have already been published in previous papers are also included, but with reassessed values for the critical temperature as a result of converting from the IPTS-68 into the ITS-90. A nondimensionalised correlation for the vapour-liquid coexistence curve of each alternative refrigerant was also developed.

Original language	English
Pages (from-to)	35-40
Number of pages	6
Journal	High Temperatures - High Pressures
Volume	26
Issue number	1
Publication status	Published - 1994 Dec 1

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Physical and Theoretical Chemistry

Cite this

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Measurements of the vapour-liquid coexistence curve in the critical region and of the critical parameters for several alternative refrigerants

Abstract

ASJC Scopus subject areas

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