PR状态方程的二元混合制冷剂热力性质计算  

Calculation of thermodynamic properties of binary-mixture refrigerants using PR EOS

作　　者：宋有强[1] 张秀平[1] 贾磊[1] 许敬德[1] 夏玲[1] 周全[1] 

机构地区：[1]合肥通用机械研究院制冷与环境研究所,合肥230088

出　　处：《低温与超导》2013年第8期72-77,共6页Cryogenics and Superconductivity

基　　金：院青年基金(2011011286)项目资助

摘　　要：基于PR状态方程法和剩余函数法建立了混合制冷剂在过冷区、两相区以及过热区的热力学参数计算模型,将混合制冷剂R410A的计算结果与NIST数据库进行比对以验证模型精度。在此基础上,对二元混合制冷剂CO2/R600a(33.546/66.454,mass%)在不同相区的热力性质进行了推算,其计算结果可以用于以CO2/R600a为制冷剂的制冷系统的热力计算分析和性能优化。The model on calculation of mixed refrigerant thermodynamic properties in supercooled region, two - phase region and superheat region was established based on the PR EOS and residual function method, and the accuracy of the model was veri- fied by comparing the results of R410A with NIST database. With this calculation model the thermodynamic parameters of mixed refrigerant C02/R600a（ 33. 546/66.454, mass% ）in different phase region were predicted. The results can be used for thermody- namic calculation and performance optimization of refrigeration system with mixed refrigerant COJR600a.

关 键 词：混合制冷剂 PR状态方程 剩余函数法 热力学性质 理论推算 

分 类 号：TB612[一般工业技术—制冷工程]