摘要
立方型状态方程具有型式简单、精度高等特点。本文以常用的立方型状态方程 R-K-S、P-R 和 p-T 方程对氟利昂纯工质和它们的混合工质的热力性质进行了大量的计算和分析研究,给出了具有价值的各种工质的方程参数及二元相互作用系数。研究结果表明:B-T 方程具有比 R-K-S 和 P-R 方程更高的计算精度,利用它可以预测混合工质的热力性质及有助于进行新工质的寻找。
The cubic equation of state(EOS)has the characteristics of simple forms and higher preci- sion.In this paper,the thermodynamic properties of pure and mixed Freon′s working fluid (WF)arc calculated and studied with R-K-S,P-R and P-T EOS respectively.The equ- ation parameters of each WF and the binary interaction constants of mixed WF are gained. The research results show deafly that the P-T EOS possess more higher calculation precision than R-K-S and P-R EOS,it can be used for calculating accuraterly the thermodynamic properties of mixed WF,and offer a new method of finding a new working fluid.
关键词
状态方程
氟利昂
热力性质
预测
cubic equation of state
Freon
pure and mixed working fluid
thermodynamic properties
