一种改进型Einstein循环制冷机的分析  

Exergy analysis of improved Einstein refrigeration cycle

作　　者：王汝金[1] 刘道平[1] 

机构地区：[1]上海理工大学制冷技术研究所,上海200093

出　　处：《化工学报》2008年第4期820-824,共5页CIESC Journal

基　　金：上海市重点学科建设项目(T0503)~~

摘　　要：Einstein cycle is a kind of single-pressure absorption refrigerator, using n-butane-ammonia-water as working fluids, driven by low grade heat source.The original cycle was improved, in which two solution heat exchangers were configured respectively before the generator and the evaporator to modify thermal performance of the refrigeration equipment.By using the exergy analysis method, the exergy losses of all thermal parts of the refrigerator were obtained, and the theoretical basis for improving design was given.The energy-saving places and the correlative further improvements were presented to minimize the exergy losses and optimize the whole refrigeration cycle.In addition, the generator and the condenser were the main parts where exergy losses existed.Einstein cycle is a kind of single-pressure absorption refrigerator, using n-butane-ammonia-water as working fluids, driven by low grade heat source. The original cycle was improved, in which two solution heat exchangers were configured respectively before the generator and the evaporator to modify thermal performance of the refrigeration equipment. By using the exergy analysis method, the exergy losses of all thermal parts of the refrigerator were obtained, and the theoretical basis for improving design was given. The energy-saving places and the correlative further improvements were presented to minimize the exergy losses and optimize the whole refrigeration cycle. In addition, the generator and the condenser were the main parts where exergy losses existed.

关 键 词：Einstein循环 吸收式制冷 [火用]分析 节能 

分 类 号：TB616[一般工业技术—制冷工程]