A performance comparison of vapour-compression refrigeration system using various alternative refrigerants
Journal article
Authors/Editors
Strategic Research Themes
No matching items found.
Publication Details
Author list: Dalkilic A.S., Wongwises S.
Publisher: Elsevier
Publication year: 2010
Journal: International Communications in Heat and Mass Transfer (0735-1933)
Volume number: 37
Issue number: 9
Start page: 1340
End page: 1349
Number of pages: 10
ISSN: 0735-1933
eISSN: 1879-0178
Languages: English-Great Britain (EN-GB)
View in Web of Science | View on publisher site | View citing articles in Web of Science
Abstract
A theoretical performance study on a traditional vapour-compression refrigeration system with refrigerant mixtures based on HFC134a, HFC152a, HFC32, HC290, HC1270, HC600, and HC600a was done for various ratios and their results are compared with CFC12, CFC22, and HFC134a as possible alternative replacements. In spite of the HC refrigerants' highly flammable characteristics, they are used in many applications, with attention being paid to the safety of the leakage from the system, as other refrigerants in recent years are not related with any effect on the depletion of the ozone layer and increase in global warming. Theoretical results showed that all of the alternative refrigerants investigated in the analysis have a slightly lower performance coefficient (COP) than CFC12, CFC22, and HFC134a for the condensation temperature of 50 ฐC and evaporating temperatures ranging between -30 ฐC and 10 ฐC. Refrigerant blends of HC290/HC600a (40/60 by wt.%) instead of CFC12 and HC290/HC1270 (20/80 by wt.%) instead of CFC22 are found to be replacement refrigerants among other alternatives in this paper as a result of the analysis. The effects of the main parameters of performance analysis such as refrigerant type, degree of subcooling, and superheating on the refrigerating effect, coefficient of performance and volumetric refrigeration capacity are also investigated for various evaporating temperatures. ฉ 2010.
Keywords
Butane, Hydrocarbon mixture, Isobutane, Propane, R12, R22, R32
Contact Information