A Theoretical investigation on HC Mixtures as Possible Alternatives to R134a in Vapor Compression Refrigeration
This paper provides a theoretical comparison of the performance of refrigerants in use in a vapor comparison cycle. It is about the phase-out of R134a from actual refrigeration system, comparison being performed for this chemical and two more ecological mixtures: R290/R600a described as (30/70)...
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| Format: | Article |
| Language: | English |
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Eftimie Murgu University of Resita
2014-07-01
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| Series: | Analele Universităţii "Eftimie Murgu" Reşiţa: Fascicola I, Inginerie |
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| Online Access: | http://anale-ing.uem.ro/2014/19.pdf |
| Summary: | This paper provides a theoretical comparison of the performance of refrigerants
in use in a vapor comparison cycle. It is about the phase-out
of R134a from actual refrigeration system, comparison being performed
for this chemical and two more ecological mixtures: R290/R600a described
as (30/70) and (40/60). Were investigated effects of condensation
temperatures and evaporation temperatures on performance
measures as COP (Coefficient of Performance) and VCC (volumetric
cooling capacity). COP is a measure of the performance of the refrigeration
cycle, while VCC is an indicator of compressor size. Results of
this study will reveal that R290/R600a (30/70) is a good option when it
is about substitution of R134a, from energy efficiency point of view, in
terms of COP. R290/R600a (40/60) has VCC values bellow the ones of
R134a, but comparable. |
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| ISSN: | 1453-7397 1453-7397 |