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EXPERIMENTAL STUDY OF R-404A AND R-134A IN DOMESTIC REFRIGERATOR

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Author(s): ABHISHEK TIWARI | R.C.GUPTA

Journal: International Journal of Engineering Science and Technology
ISSN 0975-5462

Volume: 3;
Issue: 8;
Start page: 6390;
Date: 2011;
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Keywords: Experimental Domestic refrigerator | R134a | R404a | lubricating oil

ABSTRACT
This paper presents an experimental study of R404a and R134a, environment-friendly refrigerants with zero ozone depletion potential (ODP) and low global warming potential (GWP), to replace R134a in domestic refrigerator. A refrigerator designed and developed to work with R134a was tested, and its performance using R-404a was evaluated and compared with its performance when R134a was used. The results obtained showed that the design temperature and pull-down time set by International Standard Organization (ISO) for small refrigerator were achieved earlier using refrigerant R-404a than using R-134a. The system consumed less energy when R-134a was used. The performance of R-404a in the domestic refrigerator was constantly better than those of R134a throughout all the operating conditions, which shows that R-404a can be used as replacement for R134a in domestic refrigerator.
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