流体机械

2004, (09) 55-59

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碳氢制冷剂热物理性质的计算
Calculation of Thermophysical Properties of Hydrocarbon Refrigerant

周国兵,张于峰,邓娜,郝红
ZHOU Guo bing, ZHANG Yu feng, DENG Na,HAO Hong (Tianjin University, Tianjin 300072,China)

摘要(Abstract):

将Carl的热物理性质计算关联式应用于碳氢制冷剂HC2 90和HC6 0 0a ,在制冷空调的常用温度范围内 ,检验了Carl系数的计算精度 ,并进行了重新拟合 ,使拟合误差比应用Carl系数的误差减小了一个量级左右 ,效果良好 ,可用于系统仿真和快速工程计算。另外补充了新的饱和蒸汽的热物理性质计算方程及系数 ,给出了全部计算偏差结果 ,最后对数据拟合的精度问题作了简要分析
Carl's correlations are used to calculate thermophysical properties of propane(HC290)and iso butane(HC600a) and the precision of Carl's coefficients is inspected at the common temperature range used in refrigeration and air conditioning.The coefficients are successfully re fitted and the fitting errors are minished to be about a tenth of those of Carl's coefficients.The equation coefficients can well be used in system simulation and rapid engineering computation.The equations and coefficients calculating thermophysical properties of saturated steam are supplemented which are not given by Carl.The problem of data fitting precision is briefly analysed at the end.

关键词(KeyWords): 碳氢制冷剂;丙烷;异丁烷;输运性质;热物理性质
hydrocarbon refrigerants;propane;iso butane;transport properties;thermophysical properties

Abstract:

Keywords:

基金项目(Foundation): 南开大学—天津大学联合研究院基金项目 (TD2 0 0 10 11)

作者(Author): 周国兵,张于峰,邓娜,郝红
ZHOU Guo bing, ZHANG Yu feng, DENG Na,HAO Hong (Tianjin University, Tianjin 300072,China)

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