Published 8 issues per year
ISSN Print: 1065-5131
ISSN Online: 1563-5074
Indexed in
ENHANCED PERFORMANCE OF ENVIRONMENTALLY FRIENDLY REFRIGERANT MIXTURE WITH AND WITHOUT MAGNETIC FIELD EFFECT
ABSTRACT
The performance enhancement of hydrocarbon mixture refrigerant R290/R600 (79/21 by wt %) was analyzed as an alternative to R12 and R134a, with and without the effect of magnetic field force at the condenser outlet. Six magnets with a Gauss level of 4000 each were attached on the refrigerant full liquid line of the condenser outlet. Experiments were conducted with R12, R134a, and R290/R600 mixture refrigerant at different condensing and evaporating temperatures. The parameters investigated were refrigeration capacity, compressor power, and coefficient of performance. The test results showed that the R290/R600 refrigerant mixture had a 30.5−78% higher refrigeration capacity and a 4.6−28.2% higher coefficient of performance than that with R12 without magnetic field effect. The refrigerant R134a showed a slightly lower coefficient of performance than that of R12. The magnetic field force lowered the compressor power consumption by 1.5−2.4% and enhanced the coefficient of performance of the system by 1.6−2.5% compared with that with no magnets. The R290/R600 (79/21 by wt %) refrigerant blend can be considered as an alternative refrigerant for R12 and R134a, with or without the effect of magnetic field.
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Chen Qi, Yu Jianlin, Yan Gang, Performance analysis of a modified zeotropic mixture (R290/R600) refrigeration cycle with internal subcooler for freezer applications, Applied Thermal Engineering, 108, 2016. Crossref