Journal
APPLIED SCIENCES-BASEL
Volume 10, Issue 23, Pages -Publisher
MDPI
DOI: 10.3390/app10238425
Keywords
alkaline water electrolysis; hydrogen cost; genetic algorithm; optimization
Categories
Funding
- national association ADEME
- Bretagne Region (France)
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Featured Application This article provides the strategy to find the best cell design and operating condition of a diphasic electrochemical cell using an evolutionary algorithm. Hydrogen is an excellent energy source for long-term storage and free of greenhouse gases. However, its high production cost remains an obstacle to its advancement. The two main parameters contributing to the high cost include the cost of electricity and the cost of initial financial investment. It is possible to reduce the latter by the optimization of system design and operation conditions, allowing the reduction of the cell voltage. Because the CAPEX (initial cost divided by total hydrogen production of the electrolyzer) decreases according to current density but the OPEX (operating cost depending on the cell voltage) increases depending on the current density, there exists an optimal current density. In this paper, a genetic algorithm has been developed to find the optimal evolution parameters and to determine an optimum electrolyzer design. The optimal current density has been increased by 10% and the hydrogen cost has been decreased by 1%.
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