Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 43, Issue 30, Pages 14034-14046Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2018.01.134
Keywords
Polymer electrolyte fuel cells; Metal foam; Two-phase transport; Flooding; Numerical model
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Funding
- Technology Innovation Program of the Korea Evaluation Institute of Industrial Technology (KEIT) under the Ministry of Trade, Industry & Energy (MOTIE) of Republic of Korea [10052823]
- Korea Institute of Energy Technology Evaluation and Planning (KETEP) under MOTIE [20174030201500]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20174030201500, 10052823] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Using a two-phase polymer electrolyte fuel cell (PEFC) model, we numerically investigated the influence of metal foam porous properties and wettability on key species and current distributions within a PEFC. Three-dimensional simulations were conducted under practical low humidity inlet hydrogen and air gases, and numerical comparisons were made for different metal foam design variables. These simulations were conducted to elucidate the detailed operating characteristics of PEFCs using metal foams as a flow distributor, and the simulation results showed that two-phase transport and the resulting flooding behavior in a PEFC are influenced by both the metal foam porous properties and the porous properties of an adjacent layer (e.g., the gas diffusion layer). This paper offers basic directions to design metal foams for optimal water management of PEFCs. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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