THERMAL SCIENCE

International Scientific Journal

Kolandavel Mani

,

Vellappan Selladurai

,

Natarajan Murugan

EXPERIMENTAL INVESTIGATIONS WITH ECO-FRIENDLY REFRIGERANTS USING DESIGN OF EXPERIMENTS TECHNIQUE-MATHEMATICAL MODELING AND EXPERIMENTAL VALIDATION

ABSTRACT
In this paper mathematical models were developed using design of experiments technique for the performance prediction of refrigeration system parameters such as refrigerating capacity, power consumption and coefficient of performance. The models developed were checked for their adequacy using F-test. The performances of vapour compression refrigeration system with different refrigerants R12, R134a and R290/R600a were compared. The R290/R600a mixture showed 10.7-23.6% higher coefficient of performance than that with R12 and R134a and it was found that the hydrocarbon mixture with 68% propane and 32% iso-butane could be used as a substitute for R12 and R134a.
KEYWORDS
design of experiments, mathematical model, hydrocarbon mixture, R134a, GWP, refrigeration, COP, power consumption
PAPER SUBMITTED: 2011-08-05
PAPER REVISED: 2013-02-04
PAPER ACCEPTED: 2013-08-05
PUBLISHED ONLINE: 2013-08-17
DOI REFERENCE: https://doi.org/10.2298/TSCI110805114M
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2014, VOLUME 18, ISSUE Supplement 2, PAGES [S363 - S374]
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Experimental investigations with eco-friendly refrigerants using design of experiments technique-mathematical modeling and experimental validation

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