多元低温混合工质相平衡计算模块的开发

Exploitation of computational module of low-temperature multicomponent mixture

微型J-T制冷机是当前低温领域的研究热点之一,采用混合工质可以大幅度提高其热效率。而对多元混合物相平衡计算一直是人们努力研究的内容之一,本文在理论研究的基础上开发了一套完整的计算程序,可用来计算多元混合物的汽-液(LV)、汽-液-液(LLV)、汽-液-液-固(LLVS)相平衡。

Minisize Joule-Thomson cryocooler is one of hotspots in the field of cryogenics, the thermodynamic efficiency of cryocooler with multicomponent mixture can be greatly improved. And the calculation of phase equilibrium of multicomponent mixture was studied hard at all times. In order to calculate liquid-vapor equilibrium, liquid-liquid-vapor equilibrium and liquid-liquid--vapor-solid equilibrium, a suit of integrated computer program based on theoretical investigation is given in this paper.