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http://dx.doi.org/10.5229/JKES.2006.9.4.170

Numerical Analysis on Performance Characteristics of PEMFC with Parallel and Interdigitated Flow Channel  

Lee, Pil-Hyong (Dept. of Mechanical Engineering, University of Incheon)
Cho, Son-Ah (Dept. of Mechanical Engineering, University of Incheon)
Choi, Seong-Hun (INNOFLOW)
Hwang, Sang-Soon (Dept. of Mechanical Engineering, University of Incheon)
Publication Information
Journal of the Korean Electrochemical Society / v.9, no.4, 2006 , pp. 170-177 More about this Journal
Abstract
Optimum design of flow channel in the separation plate of Proton Exchange Membrane Fuel Cell is very prerequisite to reduce concentration over potential at high current region and remove the water generated in cathode effectively. In this paper, fully 3 dimensional computational model which solves anode and cathode flow fields simultaneously is developed in order to compare the performance of fuel cell with parallel and interdigitated flow channels. Oxygen and water concentration and pressure drop are calculated and i-V performance characteristics are compared between flows with two flow channels. Results show that performance of fuel cell with interdigitated flow channel is hi민or than that with parallel flow channel at high current region because hydrogen and oxygen in interdigitated flow channel are transported to catalyst layer effectively due to strong convective transport through gas diffusion layer but pressure drop is larger than that in parallel flow channel. Therefore Trade-off between power gain and pressure loss should be considered in design of fuel cell with interdigitated flow channel.
Keywords
Proton exchange membrane fuel cell; Parallel flow channel; Interdigitated flow channels;
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