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中文摘要：
采用状态方程和多项式函数拟合两种方法，利用现有的物性计算，提出一些常用制冷剂的热力性质计算公式。利用FORTRAN和VB6．0建立了包含R12、R22、R134a的热物性计算软件。程序开发中采用层次模块的思想和开放式结构，便于增加新的制冷剂，具有良好的可扩充性。
英文摘要：
Based on the present thermodynamic properties calculation, two methods of state equation and polynomid function fitting were used to form a calculation formula for the thermal performance of commonly - used refrigerants. Applying FORTRAN and VB, the calculation software related to the thermodynamic properties calculation of R12 ,R22 and R134a was developed. The hierarchical module thoughts and open architecture were used in the process of program development so that new kinds of the refrigerants were easy to be added.
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