Volume 7 Issue 1 - May 2016

  • 1. A comparative performance evaluation of vcr system using different refrigerants

    Authors : Prafull Chavan, Ravindra Yarasu

    Pages : 257-262

    DOI : http://dx.doi.org/10.21172/1.71.037

    Keywords : refrigerant, COP, ODP, GWP.

    Abstract :

    To identify long term replacement for the existing refrigerant, requirements are no compromise in system performance, proper refrigerant and lubrication interaction, energy efficient, environment friendly etc. After Montreal protocol, use of refrigerants like CFC and HCFC banned because of high ozone depleting potential (ODP) and global warming potential (GWP). After Kyoto protocol it was decided that use of HFC refrigerants should be stopped in developed countries and in developing countries it is to be stopped use step by step. HFC refrigerants also have suitable specifications such as non-flammability, stability, and similar vapour pressure to the refrigerant CFCs and HCFCs but very high global warming potential (GWP).Here, experimental investigation was carried out to observe the performance of various environmental friendly refrigerant mixtures (HC mixture and R152a). Effect of working parameters such as diameter of capillary tube, working pressures and inlet water temperatures, which directly affect the coefficient of performance (COP) of VCR system. It was observed HC mixture and R152a is slightly less efficient than R-134a. HC mixture and R152a having less environmental impact than R-134a due to low Global Warming Potential.

    Citing this Journal Article :

    Prafull Chavan, Ravindra Yarasu, "A comparative performance evaluation of vcr system using different refrigerants", https://www.ijltet.org/journal_details.php?id=901&j_id=3053, Volume 7 Issue 1 - May 2016, 257-262, #ijltetorg