Volume 8 Issue 1 ( March 2021 )


The Exergy Investigation of a Mechanical Vapor Compression Chiller for Cooling Using R410a

Uthpala Perera, Nobuo Takata, Takahiko Miyazaki, Yukihiro Higashi and Kyaw Thu


R410a will remain a common refrigerant in developing nations, even though its high environmental impact assures its eventual phase out. In the hopes of tackling the afore mentioned and identifying potential areas of improvement, the performance of a 2.0 kW chiller is evaluated. The first law of thermodynamics highlights the disadvantage of overcharging the refrigerant amount and the second law applied through an exergy approach points to the compressor as the largest contributor to exergy destroyed and its effects on reducing condenser performance as well. This analysis can be directly compared with alternative refrigerants to replace R410a in the future.

Keywords: Exergy; Chiller; R410a