Predicting Gas Transport Coefficients of Alternative Refrigerant Mixtures

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• 作者：J. Moghadasi ; D. Mohammad-Aghaie ; M. M. Papari
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2006
• 出版时间：December 20, 2006
• 年：2006
• 卷：45
• 期：26
• 页码：9211 - 9223
• 全文大小：122K
• 年卷期：v.45,no.26(December 20, 2006)
• ISSN：1520-5045

文摘

The purpose of this paper is to extract information about intermolecular pair interaction potential energies ofmixtures of ozone-friendly refrigerants by the usage of the inversion method and then to predict the dilutegas transport properties of this class of fluids. The components of studied mixtures are nine environmentallyacceptable refrigerants consisting of R125, R134a, R152a, R143a, R32, R236ea, R236fa, R227ea, and RC318.Using the inverted pair potential energies, the Chapman-Enskog scheme is employed to calculate transportproperties of the aforementioned systems excluding thermal conductivity. The calculation of thermalconductivity using inverted pair potential energies through Schreiber's scheme is discussed. In the temperaturerange 200 K < T < 1000 K, the accuracies of the calculated viscosities and the thermal conductivities amountto ±2% and at most ±15%, respectively.