Using advanced exergy analysis to select an optimal working fluid pair in an absorption refrigeration cycle
by Hamid-Reza Bahrami; Peyman Rafie
International Journal of Exergy (IJEX), Vol. 44, No. 3/4, 2024

Abstract: This study has been done to compare LiNO₃-NH₃, LiBr-H₂O and LiCl-H₂O for using in absorption chillers using advanced exergy analysis (AEA) where LiCl-H₂O showed the highest COP and ECOP, and has in turn the lowest unavoidable exergy destruction. AEA results indicate that only 26% of the total exergy destruction in the cycle is preventable. The desorber has the highest exergy destruction with only 88% of it being unavoidable. The solution heat exchanger and the absorber could be improved as over 50% of their exergy destructions are avoidable. The research highlights how AEA provides insights into exergy destruction sources and potential improvements in absorption chiller systems.

Online publication date: Sat, 27-Jul-2024

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