ABAF - Mosab Alrahmani 4-9-2012.pdf (383.29 kB)
Download file

A numerical study on the effects of gas channel wettability in PEM fuel cells

Download (383.29 kB)
conference contribution
posted on 21.08.2014, 11:58 by Mosab Alrahmani, Rui ChenRui Chen, Salah S. Ibrahim
The wettability of channel walls and gas diffusion layer has a great influence on the water management of fuel cells. In this paper, a numerical study has been carried out to examine the effect of the wall and gas diffusion layer wettability on gas channels. The investigation employed a three dimensional numerical simulation using the volume-of-fluid (VOF) method to simulate the air-water flow in a straight micro-channel representing a gas channel in a PEM fuel cell. Nine combinations of wall and GDL wettabilities were investigated. Different wettability combinations were found to give different water behaviour. For fixed wall wettability, the pattern of the analysed parameters was changing between uniform cyclic, random cyclic and continuous. In addition, it was found that changing the GDL wettability has a greater impact on the analysed parameter compared to changing the wall wettability.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Published in

13th International Conference Advanced Batteries, Accumulators and Fuel Cells [ABAF 13th]

Pages

1 - 9 (9)

Citation

ALRAHMANI, M., CHEN, R. and IBRAHIM, S., 2012. A numerical study on the effects of gas channel wettability in PEM fuel cells. In: Vondrák, J., Novák, V. and Bača, P. (eds.). Proceedings of 2012 13th International Conference on Advanced Batteries, Accumulators and Fuel Cells (ABAF 13), Brno, Czech Republic, 26-30 August.

Publisher

© Electrochemical Society

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/.

Publication date

2012

Notes

© The Electrochemical Society, Inc. 2014. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in: ECS Transactions, 2014, 48 (1), pp. 81-92.

ISBN

9788021445703

ISSN

1938-6737

eISSN

1938-5862

Language

en

Location

Brno, Czech Republic