THERMAL SCIENCE

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Dragi Lj Anotnijević

CARBON DIOXIDE AS THE REPLACEMENT FOR SYNTHETIC REFRIGERANTS IN MOBILE AIR CONDITIONING

ABSTRACT
Based on Kyoto Protocol and the decisions of European Commission R134a refrigerant, currently dominantly used in mobile air conditioning systems, needs to be phased-out. At present automotive industry looks at carbon dioxide (CO2; R744) as the refrigerant of the future. Apart from the environmental benefits discussed are the technical characteristics of carbon dioxide refrigeration cycle and mobile air-conditioning systems in comparison to R134a refrigerant. Analyzed are challenges emerged from the use of CO2 as refrigerant and improvement opportunities in regards to increase of the system performance and efficiency. Particular attention is dedicated to the advantages of CO2 utilization in prospective automotive heat pump systems.
KEYWORDS
refrigerant, global warming potential, R-134a, CO2 (R744), transcritical cycle, air conditioning, heat pump
PAPER SUBMITTED: 2008-03-04
PAPER REVISED: 2008-07-07
PAPER ACCEPTED: 2008-08-31
DOI REFERENCE: https://doi.org/10.2298/TSCI0803055A
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2008, VOLUME 12, ISSUE Issue 3, PAGES [55 - 64]
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Carbon dioxide as the replacement for synthetic refrigerants in mobile air conditioning

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