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Coupled Thermal and Water Management in Polymer Electrolyte Fuel Cells

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Jan 2006 United States Publisher:The Electrochemical SocietyJournal:Journal of The Electrochemical Society, volume 153, page A2205 (issn: 0013-4651,

Authors: John Newman; John Newman; Adam Z. Weber;

doi: 10.1149/1.2352039

Coupled Thermal and Water Management in Polymer Electrolyte Fuel Cells

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Abstract

Thermal and water management are intricately coupled in polymer-electrolyte fuel cells. In this paper, we simulate fuel-cell performance and account for nonisothermal phenomena. The transport of water due to a temperature gradient and its associated effects on performance are described, with the increase of reactant dilution by the water-vapor partial pressure being the most dominant. In addition, simulations are undergone to find the optimum operating temperature and maximum power density as a function of external heat-transfer coefficient. The shape of the optimization curves and the magnitudes of the nonisothermal phenomena are also detailed and explained.

Country

United States

Related Organizations

University of North Texas
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Lawrence Berkeley National Laboratory
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Lawrence Berkeley National Laboratory
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University of California, Berkeley
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University of North Texas
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Keywords

Power Density, Optimization, Energy storage, Partial Pressure, Performance, Temperature Gradients, Shape, Water, Transport, 25, Dilution, Heat Transfer, Management, Environmental Energy Technologies, Water Vapor, Fuel Cells

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	218
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 1%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 1%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 10%