Exergy and Energy Analyses of Dual-temperature Evaporator Split AC System Incorporated a Capillary Tube and a Two-phase Ejector

Arsana, Made Ery and Kusuma, I Gusti Bagus Wijaya and Sucipta, Made and Suamir, I Nyoman (2021) Exergy and Energy Analyses of Dual-temperature Evaporator Split AC System Incorporated a Capillary Tube and a Two-phase Ejector. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 77 (1). pp. 88-99. ISSN 2289-7879

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Abstract

This study was aimed to investigate performance of a split type air conditioning (SAC) system applying exergy destruction method. A numerical model was established based on exergy destruction analysis of a Condenser Outlet Split-Split Air Conditioning (COS-SAC) system integrated with dual-temperature evaporator and incorporated capillary tube and ejector as expansion devices. An experimental test system was also established to experimentally validate the model. Two type of refrigerants R-290 and R-22 were involved in the evaluations. The Coefficient of Performance (COP) of the ejector COS-SAC system, exergy destruction, and exergy efficiency were determined and compared with those in the SAC system utilizing capillary tube. The results showed there was a significant improvement in the overall exergy efficiency of the COS-SAC systems. The COP of the COS-SAC system was also found to be better than the COP of the SAC system.

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