Energetic and exergetic analyses of carbon dioxide transcritical refrigeration systems for hot climates

In the last two decades many scientific papers and reports have been published in the field of the application of the carbon dioxide as a refrigerant for refrigeration systems and heat pumps. Special attention has been paid to the transcritical cycle. However, almost no papers discussed such cycles...

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Bibliographic Details
Published in:Thermal science 2015, Vol.19 (3), p.905-914
Main Author: Fazelpour, Farivar
Format: Article
Language:English
Subjects:
Carbon dioxide
Exergy
Heat pumps
Hot climates
Refrigeration
Scientific papers
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Summary:In the last two decades many scientific papers and reports have been published in the field of the application of the carbon dioxide as a refrigerant for refrigeration systems and heat pumps. Special attention has been paid to the transcritical cycle. However, almost no papers discussed such cycles for hot climates, i.e., when the temperature of the environment is higher than 40?? during a long period of time. This paper deals with the energetic and exergetic evaluation of a CO2 refrigeration system operating in a transcritical cycle under hot climatic conditions. The performance and exergy efficiency of the CO2 refrigeration system depend on the operation conditions. The effect of varying these conditions is also investigated as well as the limitations associated with these conditions. nema
ISSN:0354-9836
2334-7163
DOI:10.2298/TSCI121007026F