Correlation and prediction of the transport properties of refrigerants using two modified rough hard-sphere models

A. S. Teja, R. L. Smith, R. K. King, T. F. Sun

研究成果: Conference article査読

13 被引用数 (Scopus)

抄録

Two methods are presented for the correlation and prediction of the viscosities and thermal conductivities of refrigerants R11, R12, R22, R32, R124, R125, R134a, R141b, and R152 and their mixtures. The first (termed RHS1) is a modified rough-hard-sphere method based on the smooth hard-sphere correlations of Assael et al. The method requires two or three parameters for characterizing each refrigerant but is able to correlate transport properties over wide ranges of pressure and temperature. The second method (RHS2) is also a modified rough-hard-sphere method, but based on an effective hard-sphere diameter for Lennard-Jones (LJ) fluids. The LJ parameters and the effective hard-sphere diameter required in this method are determined from a knowledge of the density-temperature behavior of the fluid at saturation. Comparisons with the rough-hard-sphere method of Assael and co-workers (RHS3) are shown. We also show that the RHS2 method can be used to correlate as well as predict the transport properties of refrigerants.

本文言語English
ページ(範囲)149-161
ページ数13
ジャーナルInternational Journal of Thermophysics
20
1
DOI
出版ステータスPublished - 1999 1 1
イベントProceedings of 1997 13th Symposium on Thermophysical Properties - Boulder, CO, USA
継続期間: 1997 6 221997 6 27

ASJC Scopus subject areas

  • 凝縮系物理学

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