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Energies 2016, 9(10), 844; doi:10.3390/en9100844

Comparison of Numerical and Experimental Studies for Flow-Field Optimization Based on Under-Rib Convection in Polymer Electrolyte Membrane Fuel Cells

Department of Mechanical Engineering and High Safety Vehicle Core Technology Research Center, Inje University, 607 Eobang-Dong, Gimhae-si, Gyongsangnam-do 621-749, Korea
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Author to whom correspondence should be addressed.
Academic Editor: Vladimir Gurau
Received: 15 August 2016 / Revised: 7 October 2016 / Accepted: 12 October 2016 / Published: 20 October 2016
(This article belongs to the Special Issue Polymer Electrolyte Membrane Fuel Cells 2016)
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Abstract

The flow-field design based on under-rib convection plays an important role in enhancing the performance of polymer electrolyte membrane fuel cells (PEMFCs) because it ensures the uniform distribution of the reacting gas and the facilitation of water. This research focused on developing suitable configurations of the anode and cathode bipolar plates to enhance the fuel cell performance based on under-rib convection. The work here evaluated the effects of flow-field designs, including a serpentine flow field with sub channel and by pass and a conventional serpentine flow-field on single-cell performance. Both the experiment and computer simulation indicated that the serpentine flow field with sub channel and by pass (SFFSB) configuration enables more effective utilization of the electrocatalysts since it improves reactant transformation rate from the channel to the catalyst layer, thereby dramatically improving the fuel cell performance. The simulation and experimental results indicated that the power densities are increased by up to 16.74% and 18.21%, respectively, when applying suitable flow-field configurations to the anode and cathode bipolar plates. The findings in this are the foundation for enhancing efficient PEMFCs based on flow field design. View Full-Text
Keywords: polymer electrolyte membrane fuel cell (PEMFC); under-rib convection; flow-field optimization; bipolar plate; polarization performance polymer electrolyte membrane fuel cell (PEMFC); under-rib convection; flow-field optimization; bipolar plate; polarization performance
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Vinh, N.D.; Kim, H.-M. Comparison of Numerical and Experimental Studies for Flow-Field Optimization Based on Under-Rib Convection in Polymer Electrolyte Membrane Fuel Cells. Energies 2016, 9, 844.

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