A one-dimensional, dynamic proton exchange membrane fuel cells stack model is developed in this paper, where the transports of reactant and water (in both liquid and vapor phase) are described by partial differential equations (PDEs) in gas diffusion layers (GDLs) of both anode and cathode, and the lumped model is applied to channels and MEA. The boundary conditions needed for PDEs in GDLs are provided by the lumped model. In addition, the convection term is considered in PDEs for GDLs to describe the convection effect on hydrogen gas purge process on the anode side. As a result, the purge effect under medium current density (corresponding to ohmic polarization dominated region) can be simulated in an efficient manner by improving the mass transfer and reducing the effect of water back diffusion from cathode to anode. The presented gas purge model is validated by the experimental data obtained from our laboratory as well as other research group. The influence factors to the gas purge schedule on the anode side, such as the purge interval and purge time, are investigated as well.
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e-mail: suzhou@tongji.edu.cn
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June 2012
This article was originally published in
Journal of Fuel Cell Science and Technology
Research Papers
Modeling Study of Anode Water Flooding and Gas Purge for PEMFCs
Shuang Zhai,
Shuang Zhai
School of Automotive Studies,
Clean Energy Automotive Engineering Center
, Sino-German Postgraduate School, Tongji University, 201804 Shanghai, China
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Su Zhou,
Su Zhou
School of Automotive Studies,
e-mail: suzhou@tongji.edu.cn
Clean Energy Automotive Engineering Center
, Sino-German Postgraduate School, Tongji University, 201804 Shanghai, China
Search for other works by this author on:
Pengtao Sun,
Pengtao Sun
Department of Mathematical Sciences,
University of Nevada, Las Vegas
, 4505 Maryland Parkway, Las Vegas
, NV 89154
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Fengxiang Chen,
Fengxiang Chen
College of Automotive Engineering,
Tongji University (Jiading Campus)
, 4800 Caoan Road, Shanghai 201804, China
Search for other works by this author on:
Jigao Niu
Jigao Niu
College of Automotive Engineering,
Tongji University (Jiading Campus)
, 4800 Caoan Road, Shanghai 201804, China
Search for other works by this author on:
Shuang Zhai
School of Automotive Studies,
Clean Energy Automotive Engineering Center
, Sino-German Postgraduate School, Tongji University, 201804 Shanghai, China
Su Zhou
School of Automotive Studies,
Clean Energy Automotive Engineering Center
, Sino-German Postgraduate School, Tongji University, 201804 Shanghai, China
e-mail: suzhou@tongji.edu.cn
Pengtao Sun
Department of Mathematical Sciences,
University of Nevada, Las Vegas
, 4505 Maryland Parkway, Las Vegas
, NV 89154
Fengxiang Chen
College of Automotive Engineering,
Tongji University (Jiading Campus)
, 4800 Caoan Road, Shanghai 201804, China
Jigao Niu
College of Automotive Engineering,
Tongji University (Jiading Campus)
, 4800 Caoan Road, Shanghai 201804, China
J. Fuel Cell Sci. Technol. Jun 2012, 9(3): 031007 (9 pages)
Published Online: April 20, 2012
Article history
Received:
November 6, 2011
Revised:
December 7, 2011
Published:
April 19, 2012
Online:
April 20, 2012
Citation
Zhai, S., Zhou, S., Sun, P., Chen, F., and Niu, J. (April 20, 2012). "Modeling Study of Anode Water Flooding and Gas Purge for PEMFCs." ASME. J. Fuel Cell Sci. Technol. June 2012; 9(3): 031007. https://doi.org/10.1115/1.4006053
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