Development of Natural Gas Fired Combined Cycle Plant for Tri-Generation of Power, Cooling and Clean Water Using Waste Heat Recovery: Techno-Economic Analysis

Gowtham Mohan, Sujata Dahal, Uday Kumar, Andrew Martin and Hamid Kayal
Additional contact information
Gowtham Mohan: Swiss Center for Electronics and Microtechnology, CSEM-UAE Innovation Center LLC, Al Jazeera-Al Hamra, PO Box 31208, Ras Al-Khaimah, UAE
Sujata Dahal: Swiss Center for Electronics and Microtechnology, CSEM-UAE Innovation Center LLC, Al Jazeera-Al Hamra, PO Box 31208, Ras Al-Khaimah, UAE
Uday Kumar: Swiss Center for Electronics and Microtechnology, CSEM-UAE Innovation Center LLC, Al Jazeera-Al Hamra, PO Box 31208, Ras Al-Khaimah, UAE
Andrew Martin: Department of Energy Technology, KTH Royal Institute of Technology, Stockholm 10044, Sweden
Hamid Kayal: Swiss Center for Electronics and Microtechnology, CSEM-UAE Innovation Center LLC, Al Jazeera-Al Hamra, PO Box 31208, Ras Al-Khaimah, UAE

Energies, 2014, vol. 7, issue 10, 1-24

Abstract: Tri-generation is one of the most efficient ways for maximizing the utilization of available energy. Utilization of waste heat (flue gases) liberated by the Al-Hamra gas turbine power plant is analyzed in this research work for simultaneous production of: (a) electricity by combining steam rankine cycle using heat recovery steam generator (HRSG); (b) clean water by air gap membrane distillation (AGMD) plant; and (c) cooling by single stage vapor absorption chiller (VAC). The flue gases liberated from the gas turbine power cycle is the prime source of energy for the tri-generation system. The heat recovered from condenser of steam cycle and excess heat available at the flue gases are utilized to drive cooling and desalination cycles which are optimized based on the cooling energy demands of the villas. Economic and environmental benefits of the tri-generation system in terms of cost savings and reduction in carbon emissions were analyzed. Energy efficiency of about 82%–85% is achieved by the tri-generation system compared to 50%–52% for combined cycles. Normalized carbon dioxide emission per MW·h is reduced by 51.5% by implementation of waste heat recovery tri-generation system. The tri-generation system has a payback period of 1.38 years with cumulative net present value of $66 million over the project life time.

Keywords: tri-generation; waste heat; steam cycle; air gap membrane distillation; absorption chillers; flue gases; techno-economic (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (13)

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