NDLI: Computational Analysis of Heat Transfer in Air-Cooled Fuel Cells

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Shahsavari, S. Bahrami, M. Kjeang, E.
Copyright Year	2011
Abstract	Temperature distribution in a fuel cell significantly affects the performance and efficiency of the fuel cell system. Particularly, in low temperature fuel cells, improvement of the system requires addressing the heat management issues, which reveals the importance of developing thermal models. In this study, a 3D numerical thermal model is presented to analyze heat transfer and predict the temperature distribution in air-cooled proton exchange membrane fuel cells (PEMFC). In the modeled fuel cell stack, forced air flow supplies oxidant as well as cooling. Conservation equations of mass, momentum, and energy are solved in the oxidant channel, whereas energy equation is solved in the entire domain, including the gas diffusion layers (GDLs) and separator plates, which play a significant role in heat transfer. A parametric study is done to investigate the effect of various operating conditions on maximum cell temperature. The results are further validated with experiment. This model provides a theoretical foundation for thermal analysis of air-cooled stacks, where temperature non-uniformity is high and thermal management and stack cooling is a significant engineering challenge.
Sponsorship	Advanced Energy Systems Division
Starting Page	799
Ending Page	808
Page Count	10
File Format	PDF
ISBN	9780791854693
DOI	10.1115/FuelCell2011-54794
Volume Number	ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology
Conference Proceedings	ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology collocated with ASME 2011 5th International Conference on Energy Sustainability
Language	English
Publisher Date	2011-08-07
Publisher Place	Washington, DC, USA
Access Restriction	Subscribed
Subject Keyword	Numerical modeling Thermal management Pem fuel cell Air cooling Forced convection Heat transfer Temperature distribution Temperature Cooling Computer simulation Momentum Air flow Heat Temperature nonunifomity Fuel cells Plates (structures) Gas diffusion layers Thermal analysis Proton exchange membrane fuel cells Low temperature
Content Type	Text
Resource Type	Article

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