摘要
分析了制冷工质HFC-134a的粘性、导热性和表面张力的热物理性质参数方程不同计算方法,经对比选出了较为精确的一组参数方程.经验证,在一般制冷空调工程的实用工作温度和压力范围内,该组参数方程有良好的计算精度,可应用于工程设计.
The different calculation methods for the thermophysical properties parameter equations about viscosity, thermal conductivity and surface tension for HFC-134a are compared and the optimized parameter equations for HFC-134a are selected in the paper. Under the common working conditions of refrigeration and air-conditioning, those parameter equations can be applied to the engineering designs.
出处
《江南大学学报(自然科学版)》
CAS
2005年第4期390-393,共4页
Joural of Jiangnan University (Natural Science Edition)
关键词
制冷工质
热物理性质
参数
refrigerant
thermophysical properties
parameter