制冷学报2016，Vol.37Issue(2)：22-29,8.DOI:10.3969/j.issn.0253-4339.2016.02.022
CO2复叠制冷系统与载冷剂制冷系统适用范围研究
Study on Application Scope for CO2 Cascade Refrigeration System and CO2 Secondary Refrigerant System
田雅芬 1赵兆瑞 1邢子文 1杨一凡 2马进 3于志强4
作者信息
- 1. 西安交通大学能源与动力工程学院 西安 710049
- 2. 中国制冷学会秘书处 北京 100142
- 3. 国内贸易工程设计研究院 北京 100135
- 4. 烟台冰轮股份有限公司 烟台 264002
- 折叠
摘要
Abstract
The employment of natural refrigerant have drawn widespread attention, since natural refrigerant are completely environmental⁃ly friendly and they have high potential in refrigeration application. Among them, the NH3/CO2 cascade refrigeration system and NH3 compression refrigeration system with CO2 as secondary refrigerant have been viewed as the most promising refrigeration methods in freezer and cold storage especially. Nevertheless, there is limited agreement on the scope of application for these two types of system since no strictly related investigation has been conducted. In this paper, the refrigeration performance of the two systems above is analyzed, and conclusion is drawn on the basis of practical engineering applications. The range of application for these two types of system is marked off and explained in detail, aiming at providing reasonable suggestion for design and optimization of CO2 refrigeration systems in the future. It is shown that NH3/CO2 cascade refrigeration system is more competitive when the evaporating temperature is below -25℃, and the max⁃imum suction pressure and the maximum discharge pressure of CO2 compressor should not be lower than 1. 97 MPa and 4. 07 MPa respec⁃tively.关键词
CO2 复叠制冷系统/CO2 载冷剂制冷系统/适用范围/自然工质/制冷性能/CO2 压缩机Key words
CO2 cascade refrigeration system/CO2 secondary refrigerant/application scope/natural refrigerant/refrigeration perform-ance/CO2 compressor分类
通用工业技术引用本文复制引用
田雅芬,赵兆瑞,邢子文,杨一凡,马进,于志强..CO2复叠制冷系统与载冷剂制冷系统适用范围研究[J].制冷学报,2016,37(2):22-29,8.
