Energy efficiency of a reversible refrigeration unit using R410A or R32
作者： Claudio Zilio , Riccardo Brignoli , Norbert Kaemmer , Bachir Bella
DOI: 10.1080/23744731.2015.1035589
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摘要: The aim of this article is twofold: first, to compare the performance R410A with that R32, which considered a possible HFC substitute lower global warming potential (675 instead 2088); second, exploit effect circuit length in finned coil packaged air-to-water reversible unit given water plate heat exchanger and scroll compressor. Both scopes are pursued through analysis case study, system nominal cooling capacity about 74 kW at 35°C dry-bulb outdoor air temperature heating 70 2°C 1°C wet-bulb ambient temperature. two refrigerants inside “real” machine simulated by means an advanced numerical model refrigeration unit. consists single refrigerating identical compressors. compressor was characterized its experimental curve according Standard EN 12900 (EN 2013a) for both and...
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