化工进展2016,Vol.35Issue(11):3413-3420,8.DOI:10.16085/j.issn.1000-6613.2016.11.004
R290及其混合制冷剂在水平管内相变换热的研究进展
Studies on phase change heat transfer of R290 and its refrigerant mixtures in horizontal tube
摘要
Abstract
R290(propane)and its refrigerant mixtures have been treated as ideal alternative refrigerants due to their favourable environmental and thermo-physical properties. However,they are flammable. The heat exchangers of the refrigeration system can be optimized,and the charge amount of R290 and its refrigerant mixtures can be reduced by studying the phase change heat transfer of R290 and its refrigerant mixtures in horizontal tube. In this paper,studies on phase change heat transfer of R290 and its refrigerant mixtures in horizontal tube were review. The results showed that the heat transfer performance of R290 and its refrigerant mixtures can be comparable to or above synthetic refrigerants. The phase change heat transfer correlations of R290 and its refrigerant mixtures obtained in related research were listed and compared,and the influence of mass flow,heat flux,vapor quality and other factors on phase change heat transfer from relevant researches were summarized. Finally,it is pointed out that all above researches have been conducted mainly on the traditional heat transfer pipes,the phase change heat transfer correlations and factors of R290 and its refrigerant mixtures in small tube (with the diameters of 7mm、6mm、5mm or even 4mm) should be studied in order to reduce the charge amount and flammability.关键词
丙烷/相变/传热/流动/混合制冷剂/水平管Key words
propane/phase change/heat transfer/flow/refrigerant mixture/horizontal tube分类
通用工业技术引用本文复制引用
邹思凯,戴源德,何国庚..R290及其混合制冷剂在水平管内相变换热的研究进展[J].化工进展,2016,35(11):3413-3420,8.基金项目
国家教育部博士点基金(20110142110052)及江西省自然科学基金(20161BAB206124)项目。 ()