基于天然工质的串联式复叠制冷系统集成优化  

Integration and Optimization of Series Cascade Refrigeration System Using Natural Working Fluids

作　　者：盛峰 吴得卿 周宇翔 朱昱东 李辉[2] 安雪晖[3] SHENG Feng;WU Deqing;ZHOU Yuxiang;ZHU Yudong;LI Hui;AN Xuehui(Powerchina RoadBridge Group Co.,Ltd.,Beijing 100048,China;Key Laboratory for Thermal Sciences and Power Engineering of the Ministry of Education,Tsinghua University,Beijing 100084,China;State Key Laboratory of Hydroscience and Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]中电建路桥集团有限公司,北京100048 [2]清华大学热科学与动力工程教育部重点实验室,北京100084 [3]清华大学水沙科学与水利水电工程国家重点实验室,北京100084

出　　处：《制冷技术》2021年第4期41-47,共7页Chinese Journal of Refrigeration Technology

摘　　要：本文采用设计串联式复叠系统的方法,研究了水产冷库在8种不同天然工质组合下的系统性能优劣,分析了不同工质组合与水产冷库温度需求的吻合程度,结果表明:利用系统性能优良(性能系数COP为0.85)的C3H6/NH3组合与安全性高的CO2/NH3组合,作为循环设计的工质再次组合设计出的串联式复叠系统,能够获得与分立系统相同的性能系数(COP),均为1.08,同时节约循环部件的使用,降低系统成本。In this work, the system performance of aquatic cold storage under eight different natural working fluid combinations is studied by designing series cascade system. The coincidence degree between different working fluid combinations and the temperature requirements of aquatic cold storage is analyzed. The results show that, the series cascade system(C3 H6/NH3) with excellent coefficient of performance(COP) of 0.85 and high safety CO2/NH3 combination can obtain the same performance parameters(COP at 1.08) as the discrete system, and can save the use of circulating components and reduce the system cost.

关 键 词：天然工质 冷链物流 复叠式制冷 热力性能 经济收益 

分 类 号：TB612[一般工业技术—制冷工程] TB657.2