001048189 001__ 1048189
001048189 005__ 20251118111835.0
001048189 037__ $$aFZJ-2025-04551
001048189 1001_ $$0P:(DE-Juel1)200122$$aWortmann, Bernhard$$b0$$eCorresponding author$$ufzj
001048189 1112_ $$aConference on Sustainable Development of Energy, Water and Environmental Systems$$cDubrovnik$$d2025-10-05 - 2025-10-10$$wCroatia
001048189 245__ $$aCooling Water Requirements for Electrolysis: Assessing Water Consumption under Local Climate and Operating Conditions
001048189 260__ $$c2025
001048189 3367_ $$0PUB:(DE-HGF)1$$2PUB:(DE-HGF)$$aAbstract$$babstract$$mabstract$$s1763460578_24524
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001048189 3367_ $$2ORCID$$aOTHER
001048189 520__ $$aThe stoichiometric water consumption for hydrogen production by electrolysis is relatively modest. However, a significant portion of the total water usage is driven by the cooling requirements of the electrolysis process. While the stoichiometric water demand is fixed by the electrochemical reaction, water requirements for cooling electrolysis varies widely depending on local meteorological and operating parameters. Despite its increasing prominence in sustainable hydrogen production, the significant variability in cooling water requirements for electrolysis across different climates and regions has not been adequately quantified. This work aims to address this gap by introducing a thermodynamic model tailored to three distinct cooling technologies: once-through cooling, wet cooling, and air-fin cooling. Results are contextualized by incorporating energy requirements and cost analyses, enabling comprehensive recommendations for sustainable water management. The results indicate that once-through cooling systems, while consuming more water overall, may be more suitable in certain regions due to their lower energy demand and reduced operational costs. This highlights the need for region-specific strategies that balance water availability, energy efficiency, and economic feasibility in the selection of cooling technologies. By addressing the cooling demands of electrolysis in diverse environmental contexts, this study contributes to the broader discourse on resource-efficient hydrogen production. The insights gained are crucial for shaping policies and practices that ensure both environmental and economic sustainability in the hydrogen economy.
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001048189 536__ $$0G:(DE-HGF)POF4-1112$$a1112 - Societally Feasible Transformation Pathways (POF4-111)$$cPOF4-111$$fPOF IV$$x1
001048189 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)200122$$aForschungszentrum Jülich$$b0$$kFZJ
001048189 9101_ $$0I:(DE-588b)36225-6$$6P:(DE-Juel1)200122$$aRWTH Aachen$$b0$$kRWTH
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001048189 920__ $$lyes
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001048189 980__ $$aI:(DE-Juel1)ICE-2-20101013
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