Performance Analysis of CO2 Refrigeration and Heat Recovery System in Ice Rink

被引：0
|
作者：
Geng, Xudong [1 ]
Zhou, Xiaohu [1 ]
Li, Feng [2 ]
Si, Chunqiang [2 ]
Ma, Jin [2 ]
Shao, Shuangquan [1 ]
机构：
[1] School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan,430074, China
[2] Huashang International Engineering Co., Ltd., Beijing,100069, China
来源：
Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics | 2023年 / 44卷 / 05期
关键词：
Coefficient of Performance - Cycle with parallel compression - Discharge pressures - Heat recovery systems - Ice rinks - Performances analysis - Refrigeration coefficient - Refrigeration system - Thermo dynamic analysis - Transcritical;
D O I：
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摘要：
Based on the demand of refrigeration and heat recovery of ice rink, a new type of CO2 parallel compression cycle is proposed, and thermodynamic analysis is carried on this system. The results show that the refrigeration coefficient of parallel compression cycle is the highest, and it would increase with the decrease of ambient temperature. Besides, the optimal discharge pressure of this cycle in transcritical operation is lower than that of conventional cycle. The amount of heat recovered from parallel compression cycle is the smallest, but its coefficient of performance (COP) for heating and comprehensive COP are the highest. Moreover, with the decrease of ambient temperature, the heat recovery and heating coefficient will decrease while the comprehensive COP will increase. In summary, the proposed integrated system can provide efficient refrigeration and heat recovery performance throughout the year. © 2023 Science Press. All rights reserved.
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页码：1154 / 1160
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