一个带喷射器的两级吸收式制冷循环  

A TWO-STAGE ABSORPTION REFRIGERTION CYCLE WITH AN EJECTOR

作　　者：石玉琦[1] 洪大良[1] 陈光明[1] 唐黎明[1] 何一坚[1] 邹云霞[1] 

机构地区：[1]浙江大学能源清洁利用国家重点实验室制冷及低温研究所,杭州310027

出　　处：《太阳能学报》2015年第3期599-603,共5页Acta Energiae Solaris Sinica

基　　金：热驱动制冷系统的热转换理论及先进循环研究(50890184);国家重点基础研究发展(973)计划(2010CB227304)

摘　　要：提出一种带喷射器的两级吸收式制冷循环,部分低压发生器出口的制冷剂蒸气被高压发生器出口的制冷剂蒸气直接引射到冷凝压力。相比传统的两级吸收式制冷循环,由于部分制冷剂无需被高压溶液循环吸收和发生,因此新循环拥有更高的性能系数。以水-溴化锂作为工质的模拟结果显示,在部分工况下,新循环相对传统两级吸收式制冷循环的COP可提高20%以上。A two-stage absorption refrigeration cycle with an ejector is proposed in this paper. In this cycle, a portion of refrigerant vapors in low pressure generator are ejected to condensing pressure by ones coming from high pressure generator. Compared to conventional two-stage absorption refrigeration cycles, for the reason that a portion of refrigerant vapors are of no need to be absorbed and generated, the new cycle obtains a higher COP. Working medium is Water - lithium bromide. Simulation results showed that in some work condition COP of new cycle is 20% higher than conventional cycles.

关 键 词：两级 吸收式制冷 喷射器 新循环 

分 类 号：TB611[一般工业技术—制冷工程]