Three-dimensional analysis for effect of channel configuration on the performance of a small air-breathing proton exchange membrane fuel cell (PEMFC) |
| |
| Affiliation: | 1. Mechanical Engineering School, Southwest Jiaotong University, Chengdu, 610031 Sichuan, PR China;2. Fuel Cell Research Center, Korea Institute of Energy Research, P.O. Box 103, Yusong, Daejeon 305-343, South Korea;1. College of Chemical Engineering, Fuzhou University, Fuzhou 350116, Fujian, China;2. College of Mechanical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, Hunan, China;3. Research Center of Engineering Thermophysics, North China Electric Power University, Beijing 102206, China;1. State Key Laboratory of Engines, Tianjin University, 135 Yaguan Road, Tianjin 300350, China;2. School of Computer Science, Jilin Normal University, 1301 Haifeng Street, Siping 136000, China;3. Institute of Theoretical Chemistry, Laboratory of Theoretical and Computational Chemistry, Jilin University, 2 Liutiao Rd, Changchun 130023, China;1. Clean Energy Research Center, Temasek Polytechnic, Singapore 529757, Singapore;2. Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576, Singapore;3. School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China;1. School of Energy and Power Engineering, Shandong University, Jinan 250061, PR China;2. School of Control Science and Engineering, Shandong University, Jinan 250061, PR China;1. Department of Mechanical Engineering, Kun Shan University, No. 195, Kunda Rd., YongKang Dist., Tainan City 710-03, Taiwan, Republic of China;2. Department of Systems and Naval Mechatronic Engineering, National Cheng Kung University, Tainan, Taiwan, Republic of China |
| |
| Abstract: | A coupled 3D mathematical model for the real geometry of an air-breathing proton exchange membrane (PEMFC) was developed and validated by experimental data. The free convection in the cathode side was included in the model. The concentration over-potential was considered as a function of mass transfer coefficient of oxygen in the catalyst layer. Governing equations possess the features that fluid dynamics, mass/heat transfer are coupled with the electrochemical reactions. The model was solved in a commercial software STAR-CD based on the finite-difference and finite-volume methods, and the electrochemical features and water transport in membrane are solved simultaneously through a user-specific subroutine. To investigate the effect of channel configuration on air-breathing fuel cell performance, calculations for three different widths of channels have been executed. Results show the best performance can be obtained in the cell with cathode channel width of 3 mm (open ratio of 75.9%). |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
