CALCULATED DEVIATION OF VAPOR DENSITY AND SECOND VIRIAL COEFFICIENT FROM THE LITERATURE DATA FOR REFRIGERANT FLUIDES IN BOTH SUBCRITICAL AND SUPERCRITICAL REGIONS
The present work is devoted to evaluating seven cubic equations of state (EOS) in predicting gas and liquid phase volumetric properties of nine ozone-safe refrigerants both in super and sub-critical regions. The evaluations, in sub-critical region, show that TWU and PR EOS are capable of predicting PVT properties of refrigerants R32 within 2％, R22, R134a, R152a and R143a within 1％ and R123, R124, R125, and y TWU and PR EOSs, from literature data are 0.5％ for R22, R32, R152a, R143a, and R125, 1％ for R123, R134a, and R141b, and 2％ for R124. Moreover, SRK EOS predicts PVT properties of R22, R125, and R123 to within aforementioned errors. The remaining EOSs predicts volumetric properties of this class of fluids with higher errors than those above mentioned which are at most 8％.In general, the results are in favor of the preference of TWU and PR EOS over other remaining EOSs in predicting densities of all mentioned refrigerants in both super and sub critical regions. Typically, this refrigerant is known to offer advantages such as ozone depleting potential equal to zero, Global warming potential equal to 140, and no toxic.
volumetric properties refrigerant super and sub-critical regions
Mohammad Reza Mobinipouya Mohammad Mehdi Papari
Institute for Teacher Education Organization of Fars Province Shiraz, Iran Department of Chemistry Shiraz University Shiraz, Iran
国际会议
The Ninth Asian Thermophysical Properties Conference(第九届亚洲热物理性能会议 ATPC 2010)
北京
英文
633-635
2010-10-19（万方平台首次上网日期，不代表论文的发表时间）