Performance comparison between the combined R134a/CO₂ heat pump and cascade R134a/CO₂ heat pump for space heating

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• 作者：Yulong Song^a ; Dongzhe Li^a ; Dongfang Yang^a ; Lei Jin^a ; Feng Cao^a ; ^{fcao@mail.xjtu.edu.cn} ; Xiaolin Wang^b
• 关键词：Transcritical CO2 heat pump ; Space heating ; R134a/CO2 cascade system ; Performance
• 刊名：International Journal of Refrigeration
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：74
• 期：Complete
• 页码：592-605
• 全文大小：4015 K
• 卷排序：74

文摘

The combined R134a/CO2 and cascade R134a/CO2 system was compared and studied. Effect of hot water and ambient temperatures on the two systems was investigated. The two systems showed different preferable operating conditions. A correlation was proposed to identify the system for any given operating condition.