Energy and exergy analysis of a combined transcritical CO₂ compression refrigeration and single effect H₂O-LiBr vapour absorption system
by Akhilesh Arora; Nikhil Kumar Singh; Saksham Monga; Omesh Kumar
International Journal of Exergy (IJEX), Vol. 9, No. 4, 2011

Abstract: A refrigeration system is conceived and analysed wherein high grade waste heat from the gas cooler of a TCRS is utilised to operate a single effect H₂O-LiBr VARS. A simulation program is developed for computation of optimum gas cooler pressure of TCRS. The COP and ? _ex for individual TCRS and VARS as well as for the combined system have been evaluated. For different values of evaporator temperature and T₄ in TCRS, the increase in refrigerating capacity for the combined system ranges from 3.52–49.80%, while the COP and ? _ex increase by 3.72–48.96% and 1.40–10.18% respectively over TCRS.

Online publication date: Thu, 01-Dec-2011

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