利用低焓能的压缩—喷射制冷系统的研究

AN INVESTIGATION ON COMPRESSION ENHANCED EJECTOR REFRIGERATION CYCLE BY LOW GRADE HEAT

利用低焓能的压缩—喷射制冷系统的研究方承超，赵军，徐律，郑宗和，齐锡龄（天津大学热能工程系天津３０００７２）关键词：压缩－喷射制冷循环，喷射制冷循环，喷射器。ＡＮＩＮＶＥＳＴＩＧＡＴＩＯＮＯＮＣＯＭＰＲＥＳＳＩＯＮＥＮＨＡＮＣＥＤＥＪＥＣＴＯＲＲＥＦ...

This paper discusses the conventional and compression enhanced ejector refrigeration cycles using the thermodynamic theory, which demonstrates theorily that the compression enhanced ejector refrigeration cycle can achieve a more high system COP in using low grade heat. The experimental data have been processed and analysed, which show that on the specified conditions:a generator temperature of 90℃, an evaporator temperature of 10℃refrigeration mount of 1KW,the ejector mass flow entrainment can reach 0.45, the system COP can reach 50%.