流体机械

2008, No.428(02) 51-55+73

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自然工质制冷系统性能的比较分析
Performance Comparison of Nature Refrigerant Refrigerating Sysyem

田华;马一太;
TIAN Hua,MA Yi-tai(Tianjin University,Tianjin 300072,China)

摘要(Abstract):

从理论计算出发,对自然工质用于制冷循环系统的几种常见系统进行了模拟;在多种工况下,分别对NH3、R290和CO2的单级压缩式、双级压缩式、NH3-CO2复叠式以及R290-CO2复叠式循环系统进行了计算分析,综合考虑系统COP和压缩机进口比容两方面因素并进行比较,为自然工质用于各种制冷循环系统提供了一个参考。
Several types of refrigerating system using nature refrigerant has been introduced such as NH3,R290,CO2 single-stage and two-stage compression system,NH3-CO2 and R290-CO2 cascade system.The theoretical simulation of these systems on various word conditions also has been presented.It can been provided that the reference to nature refrigerant in refrigerating system from COP of system and specific volume of compressor inlet.

关键词(KeyWords): 自然工质;单级压缩式;双级压缩式;复叠式循环系统
nature refrigerant;single-stage compression;two-stage compression;cascade system.

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(50676064)

作者(Authors): 田华;马一太;
TIAN Hua,MA Yi-tai(Tianjin University,Tianjin 300072,China)

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