THERMAL SCIENCE

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Farivar Fazelpour

ENERGETIC AND EXERGETIC ANALYSES OF CARBON DIOXIDE TRANSCRITICAL REFRIGERATION SYSTEMS FOR HOT CLIMATES

ABSTRACT
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 40ºС 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.
KEYWORDS
refrigeration system, carbon dioxide, transcritical cycle, energy analysis, exergy analysis, hot climatic conditions
PAPER SUBMITTED: 2012-10-07
PAPER REVISED: 2013-02-02
PAPER ACCEPTED: 2013-02-04
PUBLISHED ONLINE: 2013-04-13
DOI REFERENCE: https://doi.org/10.2298/TSCI121007026F
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2015, VOLUME 19, ISSUE Issue 3, PAGES [905 - 914]
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Energetic and exergetic analyses of carbon dioxide transcritical refrigeration systems for hot climates

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence