摘要
根据国外有关资料,对比分析了HFC-134a两组基于MH方程的热力学性质参数方程,优化组合出较为精确的HFC-134a热力学性质计算模型,推导了相应的焓熵计算公式,用VisualFortran5.0编程计算了所得模型的部分焓熵值,验证了该模型的准确性,在常见的制冷空调工程实用工作温度和压力范围内有良好的计算精度,全部计算公式均适用于工程设计应用。
According to some foreign documents, two models of calculating the refrigerant HFC-134a thermodynamic properties based on the MH state equation are compared, and an optimized new HFC-134a thermodynamic properties model is selected. The program of the enthalpy and entropy calculation is developed. The exactness of the model is tested. Under the common working conditions of refrigeration, the new model can be applied in the engineering designs.
出处
《制冷空调与电力机械》
2005年第2期46-49,70,共5页
Refrigeration Air Conditioning & Electric Power Machinery
