Exergoeconomic analysis and multi-objective optimization of a novel continuous solar-driven hydrogen production system assisted by phase change material thermal storage system

Hossein Pourrahmani and Mahdi Moghimi

Energy, 2019, vol. 189, issue C

Abstract: The main focus of this article is to perform an exergoeconomic analysis and multi-objective optimization of a novel solar-driven integrated system to produce electricity, hydrogen, and cooling. One of the critical deficiencies of solar systems is the unavailability of the sun at nights. To obviate this problem, the phase change materials (PCMs) are utilized. In this system, a gas turbine (GT) is devised to provide the electricity of the grid. Although waste heat of the GT cycle can be recovered by the integration with the ORC, the remained heat have the adequate potential to run a thermoelectric generator (TEG). The produced electricity would be transferred to the proton exchange membrane electrolyzer (PEME) to produce hydrogen. Additionally, the absorption refrigeration cycle (ARC) is chosen to integrate with the ORC cycle to provide the domestic user’s cooling. Exergoeconomic results indicate that this system can continuously produce 8.65 kg/h hydrogen with the overall exergy efficiency of 15.28% and the total cost rate of 28.67 $/GJ. Multi-objective optimization also revealed the optimum values of the design parameters to reach the highest efficiency and reducing the costs.

Keywords: Solar energy; Phase change materials (PCM); Thermoelectric generator (TEG); Proton exchange membrane electrolyzer (PEME); Absorption refrigeration cycle (ARC) (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (14)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:189:y:2019:i:c:s0360544219318651

DOI: 10.1016/j.energy.2019.116170

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