TED-AJ03-228 Visualization of the membrane temperature field of a polymer electrolyte fuel cell

スポンサーリンク

概要

• 論文の詳細を見る

• Membrane temperature field of a polymer electrolyte fuel cell (PEFC) has been visualized experimentally. PEFCs need further breakthrough for the deployment in the market. One of the major issues is the temperature management of the polymer membrane and the whole cell that strongly govern the system performance through the electrochemical reactions, ion transport, water management, and gas supply. The temperature field of the membrane, however, had not been visualized due to the cell configuration. In our experiment, the thermography technique is applied to visualize an operating test cell. Despite the unique configuration, measured I-V characteristics guarantee the cell performance. [figure] The following visualization results revealed several important characteristics, which help understanding the physics and suggest design knowledge. One major result is the existence of, so called, "a hot spot." The membrane do have a temperature distribution, and a local temperature maximum may exceeds the membrane design limitation. This trend, of course, is not favorable for design purpose. Also, the impact of the major operation parameters, such as current density, humidification, and gas flow configuration, have been clearly exhibited. The experimental results are examined by using the results of our previously developed numerical code. The code includes the conjugate nature of the electrochemical reaction and the heat and mass transport processes. By comparing the experiment and the calculation, the mechanisms of the hot spot generation and the parameter dependence have been explained. The results revealed the physics and suggested essential design criteria.[figure]

• 一般社団法人日本機械学会の論文

著者

• Okazaki Ken

  Tokyo Institute Of Technology Department Of Mechanical And Control Engineering

• Masuda Masao

  Takasago Thermal Engineering Tokyo Institute Of Technology

• Fushinobu Kazuyoshi

  Tokyo Institute Of Technology Department Of Mechanical And Control Engineering

• Fushinobu Kazuyoshi

  Tokyo Institute Of Technology

• Shimoi Ryoichi

  Department of Mechanical and Control Engineering, Tokyo Institute of Technology

• Kozawa Yoshiyuki

  Takasago Thermal Engineering

• Shimoi Ryoichi

  Department Of Mechanical And Control Engineering Tokyo Institute Of Technology

• Okazaki Ken

  Tokyo Inst. Of Technol.

• Okazaki Ken

  Tokyo Institute Of Technology

• Fushinobu Kazuyoshi

  Tokyo Inst. Of Technol.

関連論文

• An investigation of effect of micro-structure on current collector for polymer electrolyte fuel cells
• TED-AJ03-228 Visualization of the membrane temperature field of a polymer electrolyte fuel cell
• Treatment of Heterogeneous Electrocatalysis in Modeling Transport-Reaction Phenomena in PEFCs
• Electro-thermal Analysis of Interaction Between n-type and p-type MOSFET in Si CMOS
• Electro-Thermal Analysis and Monte Carlo Simulation for Thermal Design of Si Devices

スポンサーリンク