Coupled Thermal and Water Management in Polymer-Electrolyte FuelCells

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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.

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Weber, Adam Z. & Newman, John November 1, 2006.

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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.

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  • Journal Name: Journal of the Electrochemical Society; Journal Volume: 153; Journal Issue: 12; Related Information: Journal Publication Date: 2006

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  • November 1, 2006

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  • Sept. 22, 2016, 2:13 a.m.

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  • Sept. 29, 2016, 2:13 p.m.

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Weber, Adam Z. & Newman, John. Coupled Thermal and Water Management in Polymer-Electrolyte FuelCells, article, November 1, 2006; Berkeley, California. (https://digital.library.unt.edu/ark:/67531/metadc891435/: accessed April 2, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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