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利用NISTREFPROP数据库计算HFC1 2 5 /HCs(包括丙烷、丁烷、异丁烷 )三类二元混合工质的热力学性质 ,并对其理论制冷循环性能进行分析计算 ,筛选出最佳配比。结果显示其理论循环性能比HCFC2 2高 1 6 .9% ,并且压缩机排气温度也有所降低
The thermodynamic properties of HFC1 2 5 / HCs (including propane, butane and isobutane) mixtures were calculated using the NISTREFPROP database. The theoretical refrigeration cycle performance was analyzed and calculated, and the best ratio was screened out. The results showed that the theoretical cycle performance was 16.6% higher than that of HCFC2 2, and the compressor exhaust temperature was also decreased