化学工程2017，Vol.45Issue(8)：27-32,6.DOI:10.3969/j.issn.1005-9954.2017.08.006
CO2二元混合物压缩/引射制冷循环性能研究
Performance of binary mixture of CO2 in compression/ejection refrigeration cycle
摘要
Abstract
The mixture of CO2 and compression/ejection refrigeration cycle can increase the system efficiency of CO2.This system which was about two phase flow ejector system was established and analyzed by theory of Sokurov,theory of Eames etc.and two phase flow ejector model from thermodynamics method.After comparing with the results in the literature,the thermodynamics method was proved to be more close to the truth in design and calculate method for the ejector of two-phase flow.Thermodynamics method was used for analysing the ejector in compression/ejection refrigeration cycle which working medium were binary non-azeotropic mixed refrigerants CO2/R32 (mass ratio 40/60) and CO2/R41 (mass ratio 20/80).The comparisons show that the efficiency of the system with ejector is respectively 30％ and 20％ higher than the one without ejetor.The system efficiency which is increased by using mixed refrigerants for improving physical properties is more than 50％ higher than the one of simple substance CO2 and CO2/R32 is better than CO2/R41.关键词
两相流引射器/引射系数/CO2/R32/CO2/R41/二元混合物Key words
two phase ejector/ejector coefficient/CO2/R32/CO2/R41/binary mixture分类
能源科技引用本文复制引用
李敏霞,吕岩,李双俊..CO2二元混合物压缩/引射制冷循环性能研究[J].化学工程,2017,45(8):27-32,6.基金项目
国家自然科学基金资助项目(51176133) （51176133）
CO2热泵型电动汽车空调系统研究(16YFZCGX00080) （16YFZCGX00080）
