Title: Energy and exergy analysis of hydrogen production from seawater using waste heat recovery system on a model ship

Authors: Meryem Gizem Sürer; Hüseyin Turan Arat

Addresses: Department of Mechanical Engineering, Faculty of Engineering and Natural Sciences, Iskenderun Technical University, İskenderun, Hatay, 31200, Türkiye ' Department of Mechanical Engineering, Faculty of Engineering and Architecture, Sinop University, Sinop, 57000, Türkiye

Abstract: Marine transportation has been the subject of many studies on the green environment. Contributing to these studies, a system that uses electricity obtained from the waste heat of a diesel engine to obtain hydrogen has been designed. Concept ship design, energy and exergy analysis was applied. In the results evaluation of the exergy destruction, the components having the highest exergy destruction in the Rankine system were the turbine with 97%, and the system producing hydrogen from seawater was the electrolyser with 54%. As a result, the system of using seawater in hydrogen production seems feasible and can be used as a storage option.

Keywords: waste heat recovery; seawater; hydrogen; Rankine cycle; exergy.

DOI: 10.1504/IJEX.2024.138741

International Journal of Exergy, 2024 Vol.44 No.1, pp.53 - 64

Received: 12 Jan 2024
Accepted: 17 Feb 2024
Published online: 29 May 2024 *

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