Field measurements of supermarket refrigeration systems. Part II: Analysis of HFC refrigeration systems and comparison to CO₂ trans-critical

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• 作者：Samer Sawalha ; ^{samer.sawalha@energy.kth.se} ; Salvatore Piscopiello ; Mazyar Karampour ; Louis Manickam ; Jö ; rgen Rogstam
• 关键词：Hydrofluorocarbon (HFC) ; Carbon dioxide (CO2) ; Supermarket refrigeration ; Trans-critical cycle ; Field measurements
• 刊名：Applied Thermal Engineering
• 出版年：2017
• 出版时间：25 January 2017
• 年：2017
• 卷：111
• 期：Complete
• 页码：170-182
• 全文大小：1441 K
• 卷排序：111

文摘

Three Swedish supermarkets using typical HFC refrigeration solutions are analyzed. Field measurements of the HFC systems are compared to CO2 trans-critical systems. Detailed analysis of field measurements combined with modelling is performed. CO2 systems have higher COP than HFC systems for outdoor temperatures below 24 °C. CO2 systems use about 20% less energy than a typical HFC system.