Numerical Investigation Into the Effect of Structural Parameters of Parallel Flow Field With Cooling Channels on Fuel Cell Performance
Chen Li, Xiaoming Xu, Hao Hu, Nan Mei +1
AI summary
70% confidenceA 3D PEMFC model with serpentine flow channel was developed to investigate the effect of structural parameters on fuel cell performance. The results show that rib width between reactant and cooling channels has the greatest influence on current density. Gas flow channel width has the least influence.
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Abstract
Abstract The electrochemical reaction inside a high-power fuel cell generates a lot of heat. Excessive heat affects the performance of the membrane, so it is necessary to introduce coolant. The main objective of coolant is regulating the temperature of relatively high-power proton exchange membrane fuel cell (PEMFC) stacks efficiently. The coolant channel has a great influence on the performance of PEMFC. In this work, a multiphase, 3D PEMFC model with serpentine flow channel is developed. In order to rank structural parameters according to the degree of influence on fuel cell performance, this study analyzed the current density, O2 mass fraction, and the distributions of temperature based on an orthogonal test scheme with three factors and three levels. The results show that rib width between the reactant flow channel and the cooling channel has the greatest influence on the current density, and gas flow channel width has the least influence.
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Keywords
Identifiers
- Journal
- Journal of Electrochemical Energy Conversion and Storage
- Year
- 2021