Performance evaluation of NH3/CO2 cascade refrigeration system with ejector subcooling for low-temperature cycle
发布时间：2023-10-19点击次数：
- 关键字：Cascade refrigeration system; Ejector Subcooling; Thermodynamic analysis; System performance
- 摘要：An NH3/CO2 cascade refrigeration system with ejector subcooling (ESCRS) is proposed in this paper. Based on the basic principle of thermodynamics, the mathematical model of the refrigeration system is established and thermodynamic analysis is carried out to obtain the influence of main working parameters on system performance. Compared with the conventional cascade refrigeration system (CCRS), it is concluded that the performance of ESCRS is better than that of the CCRS. Within a certain range, the greater the subcooling degree, the more obvious the decrease of power consumption of low-temperature compressor, the greater the discharge temperature of NH3 compressor decreases, and the more obvious the increase of system COP and exergy efficiency. Under typical operating conditions, the COP and exergy efficiency of the system proposed in this paper is about 5.4% and 4.8% higher than that of the CCRS.
- 卷号：136
- 期号：-
- 是否译文：否
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个人信息
- 职称：教授
- 毕业院校：西安交通大学
- 学位：工学博士
- 电子邮箱：