Exergy Performance Assessment of a Residential Air Conditioner Working with R22 and R32/R125/R600a Mixture as an Alternative

Abstract:

The main aim of this article is to evaluate the performance of an air conditioner working with R22 and the new ternary mixture which comprises R32/R125/ R600a (0.4:0.4:0.2, by mass). The energy performance assessment of the air conditioner is made for four different condensing temperatures such as 30, 35, 40 and 45 ^°C with evaporator temperatures 22 and 25 ^°C respectively. The experimental tests are performed with secondary fluids like water and air in the condenser and in the evaporator respectively. The experimental tests are performed and comparative exergy analysis has been presented. REFPROP is utilized to find the thermodynamic properties of the mixture. The overall exergetic performance of R22 is comparatively better than that of the mixture. The performances of the individual components are also examined. The exergy destruction of compressor is larger for the mixture, followed by condenser then evaporator and ended with expansion valve. Thus to improve the performance of the system the compressor design has to be reformed.

• Periodical: Advanced Materials Research (Volumes 984-985)
• Pages: 1108-1114
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.984-985.1108
• Online since: July 2014
• Authors: Neerathalingam Suguna Ramu*, P. Senthil Kumar, Murugesan Mohanraj
• Keywords: Exergy Destruction, R22, R32/R125/R600a, System Efficiency, Vapour Compression System

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