Numerical studies on an air-breathing proton exchange membrane (PEM) fuel cell |
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| Affiliation: | 1. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, PR China;2. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 10081, PR China;1. School of Mathematical Sciences/Institute of Computational Science, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, PR China;2. Department of Mathematics and Computer Science, Anshun University, Anshun, Guizhou 561000, PR China;1. Business School, Hunan University, Changsha 410082, China;2. College of Mathematics and Computing Sciences, Changsha University of Science and Technology, Changsha 410114, China;3. Department of Computer and Information Science, City College of Dongguan University of Technology, Dongguan 523106, China;1. Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong;2. Centre for Innovation in Carbon Capture and Storage (CICCS), School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, UK;1. School of Mechanical Engineering, VIT University, Vellore, India;2. Department of Automobile Engineering, PSG College of Technology, Coimbatore, India;1. Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Chongqing 400030, China;2. Institute of Engineering Thermophysics, Chongqing University, Chongqing 400030, China;3. Institute for Integrated Energy Systems (IESVic), University of Victoria, P.O. Box 3055 STN CSC, Victoria, BC V8W 3P6, Canada;4. Department of Mechanical Engineering, University of Victoria, P.O. Box 3055 STN CSC, Victoria, BC V8W 3P6, Canada |
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| Abstract: | The objective of this article is to investigate the performance of an air-breathing proton exchange membrane (PEM) fuel cell operating with hydrogen fed at the anode and air supplied by natural convection at the cathode. Considering a dual-cell cartridge configuration with a common anode flow chamber, a comprehensive two-dimensional, non-isothermal, multi-component numerical model is developed to simulate the mass transport and electrochemical phenomena governing the cell operation. Systematic parametric studies are presented to investigate the effects of operating conditions, cell orientation and cell geometry on the performance. Temperature and species distributions are also studied to assist the understanding of the single cell performance for different conditions. It is shown that the cell orientation affects the local current density distribution along the cell and the average current density, particularly at lower cell voltages. The cell performance is shown to improve with increase of temperature, anode flow rate, anode pressure and anode relative humidity. |
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