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Experimental analysis of a new refrigerant mixture as drop-in replacement for CFC-12 and HFC-134a.

Author(s) : MANI K., SELLADURAI V.

Type of article: Article

Summary

An experimental performance study on a vapour compression refrigeration system with the new R290/R600a refrigerant mixture as drop-in replacement was conducted and compared with CFC-12 and HFC-134a. The vapour compression refrigeration system was initially designed to operate with R12. Experimental results showed that the refrigerant R290/R600a had 19.9 to 50.1% higher refrigerating capacity than R12 and 28.6 to 87.2% than R134a. The refrigerant R134a showed slightly lower refrigerating capacity than R12. The mixture R290/R600a consumed 6.8% to 17.4% more energy than R12. The refrigerant R12 consumed slightly more energy than R-134a at higher evaporating temperatures. The coefficient performance of R-290/R-600a mixture increases from 3.9 to 25.1% than R-12 at lower evaporating temperatures and 11.8 to 17.6% at higher evaporating temperatures. The refrigerant R134a showed slightly lower coefficient of performance than R12. The discharge temperature and discharge pressure of the R290/R600a mixture was very close to R12. The R-290/R-600a (68/32 by wt%) mixture can be considered as a drop-in replacement refrigerant for CFC-12 and HFC-134a. The refrigeration efficiency of the system were also studied. [Reprinted with permission from Elsevier. Copyright, 2007].

Details

  • Original title: Experimental analysis of a new refrigerant mixture as drop-in replacement for CFC-12 and HFC-134a.
  • Record ID : 2009-1025
  • Languages: English
  • Source: International Journal of thermal Sciences - vol. 47 - n. 11
  • Publication date: 2008/11

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