制冷剂热力性质的快速计算 Ⅱ.典型工质计算公式  

The Fast Calculation of Refrigerant Thermodynamic Properties:Ⅱ.Formulae for Typical Refrigerants

作　　者：吴志刚[1] 丁国良[1] 芮银波[1] 

机构地区：[1]上海交通大学制冷与低温工程研究所,上海200030

出　　处：《上海交通大学学报》2006年第2期301-305,共5页Journal of Shanghai Jiaotong University

基　　金：国家重点基础研究发展规划(973)项目(G2000026309);国家自然科学基金资助项目(50576053)

摘　　要：利用所提出的快速计算方法，以REFPROP 6．01的计算结果为数据源，对2种典型的制冷剂R134a和R410A的饱和区、过热区和两相区的热力性质在饱和温度分别为-60～80℃和-60～60℃，过热度均为O～65℃的数据范围内进行了拟合，给出了各个热力性质对应的显式快速计算公式，并将该快速计算公式与REFPROP 6．01相应公式的计算结果和计算速度作了比较。对比结果表明：R134a和R410A的快速计算公式的计算速度约分别为REFPROP 6．01的140倍和940倍；所有快速计算公式的计算平均偏差小于0．021％，最大偏差小于1．05％。With the presented method, explicit fast calculation formulae for saturated, two-phased and superheated thermal properties of two typical refrigerant R134a and R410A, covering the saturated temperature of -60～80 ℃ for R134a and -60～60 ℃ for R410A and superheat of 0～65℃ for both were presented. The calculation speed and the accuracy were validated by the comparison with REFPROP 6.01. The calculation speed of the fast calculation formulae of R134a is about 140 times faster than those of REFPROP 6.01 while the fast calculation formulae of R410A is about 940 times faster. The total mean relative deviation of the fast calculation formulae for each refrigerant is less than 0. 021%. The maximum relative deviation is less than 1.05% for all formulae.

关 键 词：制冷剂 快速计算 热力性质 饱和 过热 两相 

分 类 号：TB65[一般工业技术—制冷工程]