Title: Energy and exergy analyses of a new solar-assisted cogeneration cycle for simultaneous heating and triple effect cooling applications

Authors: Surendra Kumar Agrawal; Rajesh Kumar; Abdul Khaliq; Pratesh Jayaswal

Addresses: Department of Mechanical Engineering, Madhav Institute of Technology & Science, Gwalior – 474005, M.P., India ' Department of Mechanical Engineering, Delhi Technological University (Government of NCT of Delhi), Bawana Road, Delhi – 110042, India ' Department of Mechanical Engineering, King Fahd University of Petroleum and Minerals, Dhahran – 34464, Saudi Arabia ' Department of Mechanical Engineering, Madhav Institute of Technology & Science, Gwalior – 474005, M.P., India

Abstract: This paper presents the energy and exergy analyses of a new cogeneration cycle for simultaneous production of heating and cooling. The effect of some influenced operating variables is observed on energy output, exergy output, energy and exergy efficiency of proposed cycle. Second law analysis indicates that around 3% of solar heat exergy is available as heating and cooling output and remaining is destroyed due to irreversibility in the various components of the cycle as well as lost via exhaust. It is found that maximum exergy destruction occurs in central receiver (52.5%) and heliostat field (25%) followed by condenser of ejector refrigeration cycle (ERC) (3.98%), heat recovery vapour generator (HRVG) (3.79%) and ejector (3.72%).

Keywords: solar energy; absorption; transcritical CO2 cycle; carbon dioxide; energy efficiency; exergy efficiency; energy analysis; exergy analysis; solar-assisted cogeneration cycle; heating; triple effect cooling; solar power; exergy destruction; central receiver; heliostat field; ejector refrigeration cycle; heat recovery vapour generator.

DOI: 10.1504/IJEX.2015.072891

International Journal of Exergy, 2015 Vol.18 No.3, pp.275 - 297

Received: 04 Apr 2014
Accepted: 14 Oct 2014
Published online: 06 Nov 2015 *

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