R22与其替代工质的性能比较与分析  

THE PERFORMANCE COMMRISON OF R22AND ITS ALTERNATIVES

作　　者：张嘉辉[1] 马一太[1] 苏维诚[1] 李丽新[1] 

机构地区：[1]天津大学热能研究所,天津300072

出　　处：《工程热物理学报》1999年第5期534-537,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金

摘　　要：This paper uses the concept of "equivalent temperature" and presents a new standard used to evaluate vapor compression cycle. The evaluation standard eliminates the error of superheat temperature, and builds the relation of Rankine cycle and Lorenz cycle. Based on the standard, the paper compares cycle performance of R22 and its alternatives including pure refrigerants and mixtures. Refrigerant thermodynamic properties are calculated by using the Carnahan-Starling-DeSantis equation of state. The results indicate that intracycle can improve COP of all refrigerants. Intracycle reduces the volumetric refrigeration capacity of R22, R32 and R717(NH3), but all mixture alternatives can be improved.This paper uses the concept of 'equivalent temperature' and presents a new standard used to evaluate vapor compression cycle. The evaluation standard eliminates the error of superheat temperature, and builds the relation of Rankine cycle and Lorenz cycle. Based on the standard, the paper compares cycle performance of R22 and its alternatives including pure refrigerants and mixtures. Refrigerant thermodynamic properties are calculated by using the Carnahan-Starling-DeSantis equation of state. The results indicate that intracycle can improve COP of all refrigerants. Intracycle reduces the volumetric refrigeration capacity of R22, R32 and R717(NH3), but all mixture alternatives can be improved.

关 键 词：当量温度 替代物 蒸气压缩循环 制冷剂 

分 类 号：TB612[一般工业技术—制冷工程]