Title: Exergy, energy, economic and environmental evaluations of a SOFC-based cooling system

Authors: Shobhit Mishra

Addresses: Department of Mechanical Engineering, Delhi Technological University, Delhi, 110042, India

Abstract: This study developed a novel solid oxide fuel cell-based vapour absorption refrigeration system (VARS) for combined cooling and power generation. Thermodynamic, economic, and environmental analyses were performed on the proposed system using computational techniques. The proposed plant obtained power output, exergy, and energy efficiency of 551.29 kW, 48.03%, and 50.18%, respectively, at given operating conditions. The cooling effects of 5.275 kW were obtained from the VARS with a coefficient of performance of 0.752. The total cost rate of the proposed plant was observed as 33.57 $/h, respectively. However, the CO₂ emission per MWh was obtained as 394.70 kg/MWh.

Keywords: gas turbine; solid oxide fuel cell; vapour absorption refrigeration system; VARS; combined cooling and power generation; hybrid system; room air conditioning.

DOI: 10.1504/IJEX.2026.151393

International Journal of Exergy, 2026 Vol.49 No.1, pp.21 - 32

Received: 01 Nov 2024
Accepted: 11 Jan 2025
Published online: 26 Jan 2026 *

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