Exergy analysis of refrigeration systems using an alternative refrigerant (HFO-1234yF) to R-134a

ÖZGÜR A. E., KABUL A., KIZILKAN Ö.

International Journal of Low-Carbon Technologies, vol.9, no.1, pp.56-62, 2014 (Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 9 Issue: 1
  • Publication Date: 2014
  • Doi Number: 10.1093/ijlct/cts054
  • Journal Name: International Journal of Low-Carbon Technologies
  • Journal Indexes: Scopus
  • Page Numbers: pp.56-62
  • Keywords: Exergy, R1234yf, R134a, Refrigeration, Thermodynamic analysis
  • Isparta University of Applied Sciences Affiliated: No

Abstract

In this study, analysis studies of the first and second law of thermodynamics are carried out for vapor compressed refrigeration systems using an alternative refrigerant HFO-1234yf to HFC-134a. No important differences between cycle efficiencies were observed for both refrigerants. However, the exergy destruction rate of the compressor obtained with HFO-1234yf is lower than that calculated for R-134a. According to the exergy and energy analysis results obtained with this study, it can be evaluated that HFO-1234yf is a good alternative to R-134a. If the safety requirements (flammability problem of the refrigerant) have been satisfied refrigeration systems charged with HFO-1234yf, this alternative refrigerant can be commonly used in the systems. © The Author 2012. Published by Oxford University Press.