文章基本信息

标题：In-Situ Measurement of In-Plane Temperature Distribution in a Single-Cell Polymer Electrolyte Fuel Cell Using Thermograph
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作者：Akira NISHIMURA ; Kenichi SHIBUYA ; Atsushi MORIMOTO 等
期刊名称：Journal of Environment and Engineering
电子版ISSN：1880-988X
出版年度：2011
卷号：6
期号：1
页码：1-16
DOI：10.1299/jee.6.1
出版社：The Japan Society of Mechanical Engineers
摘要：To clarify the mechanism of combined phenomena of heat, mass and electric charge transfers in a single-cell polymer electrolyte fuel cell (PEFC), it is necessary to measure in-plane temperature distribution of a single-cell PEFC when it is run, i.e., generating power. The measurement by thermograph assists to investigate the influence of gas flow rate at inlet and gas channel pitch of separator on in-plane temperature distribution and power generation performance. As a result, the higher temperature region is observed near the outlet of cell when the excess ratio of gas flow is set due to the convective heat transfer by excess oxygen flow in gas channel at the cathode. When the gas flow is set at stoichiometric, in-plane temperature distribution becomes even and high power generation performance can be achieved. The other observation is that the total voltage is increased and temperature in observation area is dropped with decreasing gas channel pitch of separator irrespective of gas flow rate.
关键词：PEFC;Heat Transfer;Energy Conversion;Thermograph;In Situ Measurement;In Plane Temperature Distribution;Gas Flow Rate;Gas Channel Pitch