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specialty journal of engineering and applied science
Volume 4, 2019, Issue 2
Exergy Analysis of Waste Heat Recovery in the LNG-Based Combined Cooling and Power ‎‎(CCP) System and Its Use in GAX Cycles‎
Peyman Asemani Kalejahi
Pages: 91-113


An LNG-based combined cooling and power (CCP) system and the energy recovery from the ‎waste heat were proposed to be used in a GAX cycle and cooling generation. Modeling the ‎cycle was carried out in EES Software. In order to ensure the precision of the obtained results ‎of the simulation, the LNG-based power generation system and the GAX cycle, was validated ‎by comparing them with the results of the‏ ‏technical literature. The intended combined cycle ‎was reviewed from the first and second laws of thermodynamics` perspective. Furthermore, the ‎capacity of the refrigeration cycle, net generated power of the cycle, energy efficiency, exergy ‎efficiency, and total exergy destruction, as well as the exergy destruction of each component of ‎the cycle have been evaluated. The exergy analysis results showed the great amount of exergy ‎destructs in the combustion chamber and heat exchanger number two, respectively. Also, it was ‎concluded that the use of the GAX refrigeration cycle and energy recovery from the waste heat ‎of the mentioned cycle have been very effective to enhance the overall efficiency of the cycle‎‎.

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specialty journal of engineering and applied science
Issue 2, Volume 5, 2020