Title: Thermodynamic and economic evaluation of a developed solar-driven system for efficient production of power and cooling

Authors: Ibrahim Alsaduni; Mohd Asjad Siddiqui

Addresses: Department of Electrical Engineering, College of Engineering, Majmaah University, Al-Majmaah – 11952, Saudi Arabia ' Department of Mechanical Engineering, Faculty of Engineering and Technology, Jamia Millia Islamia, New Delhi – 110025, India

Abstract: This study proposes and evaluates the thermodynamic and economic aspects of a solar-powered combined power and cooling system. It comprises a solar tower collector, a supercritical carbon dioxide (s-CO₂) power cycle, an organic Rankine cycle, and an absorption refrigeration cycle to meet building energy demands. The power and cooling outputs of the proposed combined system and its levellised cost of electricity (LEC) and efficiencies were analysed by varying parameters. Results show the highest energy and exergy efficiencies using toluene at 52.32% and 46.67%, respectively. Furthermore, the economic feasibility of the system design is supported by a LEC of ȼ8.856/kWh.

Keywords: S-CO₂ power cycle; organic Rankine cycle; ORC; absorption refrigeration cycle; solar tower collector; exergy; economic.

DOI: 10.1504/IJEX.2024.142623

International Journal of Exergy, 2024 Vol.45 No.3/4, pp.219 - 235

Received: 19 Jun 2024
Accepted: 14 Aug 2024
Published online: 12 Nov 2024 *

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