Theoretical comparison of the heat pipe system of NH3/CO2 and the cascade system of NH3/CO2 in refrigeration

摘要：

Based on the analyses of T-S and P-H diagram of the cascade refrigeration system of NH3/CO2 and the heat pipe refrigeration system of NH3/CO2, COP, the mass of NH3 and CO2 of the two systems were compared. The theoretically calculated results show that COP of the two systems has a maximum value, but the maximum value of COP of the cascade refrigeration system of NH3/CO2 is more easily affected by the working conditions than that of the heat pipe refrigeration system of NH3/CO2. And the middle temperature of 1.5° C is the distinguishing point of the COP of the two systems. As for the mass of CO2, the mass of the cascade refrigeration system of NH3/CO2 is larger than that of the heat pipe refrigeration system of NH3/CO2. But as for the mass of NH3, there is little difference between the two systems.

关键词： Refrigeration Heat pipe Cascade refrigeration COP

作者: Liu Bin Yin Hui Dong Xiaoyong Zang Runqing

作者单位: Tianjin Key Lab of Refrigeration Technology, Tianjin University of Commerce, Tianjin, P.R.C, 300134

会议类型: 国际会议

会议名称: The 7th International Conference on Fluid and Thermal Energy Conversion(第七届流动技术与热能转化国际会议 FTEC 2011)

会议地点: 郑州

会议语种:英文

页码: 542-549

在线出版日期: 2011-09-24（万方平台首次上网日期，不代表论文的发表时间）