Experimental investigation on the performance of domestic refrigerator using isobutane and mixture of propane, butane and isobutene

Sattar, M.A. and Saidur, Rahman and Masjuki, Haji Hassan (2008) Experimental investigation on the performance of domestic refrigerator using isobutane and mixture of propane, butane and isobutene. AU Journal.

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Abstract

This paper presents an experimental investigation on the performance of a domestic refrigerator using pure isobutane and mixture of propane, butane and isobutene as a refrigerant. The experiment was conducted with a refrigerator designed to work with HFC-134a under the same no load condition at a surrounding temperature of 25°C and 28°C. The refrigeration capacity, the compressor power, the coefficient of performance (COP), condenser duty and heat rejection ratio were investigated. The compressor consumes 2.08kWh/day and 2.25kWh/day when R-134a was used as refrigerant at 25°C and 28°C ambient temperature but when isobutane was used it consumed 2.131kWh/day and 2.183kWh/day at same condition. Where as the compressor consumed 2.625kWh/day and 2.758kWh/day when mixture of 70 Propane, 25 Butane and 5 Iso-butane was used and 2.515kWh/day and 2.579kWh/day when mixture of 50 Propane, 40 Butane and 10 Iso-butane was used at 25°C and 28°C ambient temperatures respectively. It can be stated that the performance of iso-butane is comparable with the performance of the HFC134a. The result shows a better performance of iso-butane than HFC134a. The results support the possibility of using iso-butane as an alternative to HFC134a in domestic refrigerators without modification of the components.

Item Type: Other
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 08 Jul 2013 02:20
Last Modified: 16 Oct 2018 05:16
URI: http://eprints.um.edu.my/id/eprint/6794

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