A computational simulation of an alkaline fuel cell |
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| Affiliation: | 1. INFIQC, CONICET and Departamento de Química Teórica y Computacional, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, Córdoba 5000, Argentina;2. Department of Chemistry, University of North Florida, 1,UNF Drive, Jacksonville, FL, 32224, USA;1. School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, China;2. LMEE Univ-Evry, Université de Paris-Saclay, Evry, France;3. CONACYT - Instituto Tecnológico de Ensenada, Ensenada, BC, Mexico;1. Powder Metallurgy Research Institute, Central South University, Changsha, 410083, China;2. Yiyang Hongyuan Rare Earth Co, Ltd, Yiyang, 413001, China |
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| Abstract: | An advanced one-dimensional, isothermal mathematical model for a single cell of an alkaline fuel cell (AFC) is presented. Advances in an expression for the volume average velocity and in correlations and parameters are achieved. The parameters and operating conditions of the model are based on the Obiter Fuel Cell, which is employed as a power source for NASA space shuttles. A stimulated result is obtained that shows a close agreement with some of the experimental data. Profiles of variables, local overpotential and local current density are also obtained as a function of cell voltage. An investigation of the influence of initial electrolyte concentration shows that the performance of the AFC is maximized at a concentration of 3.5 M. Finally, it is found that increasing the operating pressure steadily enhances cell performance. |
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