摘要
采用pT状态方程并结合van der Waals混合规则,对R290/R744混合物的热物性参数进行了理论研究,计算中采用了Kay规则计算的虚拟临界参数来代替混合物的真实临界参数,计算得到了R290/R744混合物饱和气体比容、饱和液体密度、比焓和比熵等物性参数,并对计算数据进行了精度分析.计算结果为R290/R744混合物的应用打下了基础.
The pT equation of state and van der Waals mixing rule are applied to theoretical analysis of the properties of R290/R744 mixture. The actual critical parameters are replaced by the virtual critical parameters calculated by Kay rule. The properties of R290/R744 mixture, such as specific volume of saturated gas, density of saturated liquid, specific enthalpy and specific entropy are calculated. The precision of all data is analyzed. The results of this research can lay a foundation for the application of R290/R744 mixture.
出处
《大连理工大学学报》
CAS
CSCD
北大核心
2013年第5期642-646,共5页
Journal of Dalian University of Technology
基金
中国科学院低温工程重点实验室开放基金资助项目(CRYO201127)
