文化大學機構典藏 CCUR:Item 987654321/41860
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    题名: Development and performance evaluation of a high temperature proton exchange membrane fuel cell with stamped 304 stainless steel bipolar plates
    作者: Chen, CY (Chen, Chen-Yu)
    Su, SC (Su, Sheng-Chun)
    贡献者: 機械工程系暨機械工程學系數位機電研究所
    关键词: STAINLESS-STEEL
    CORROSION-RESISTANCE
    SURFACE MODIFICATION
    CONTACT RESISTANCE
    PHOSPHORIC-ACID
    FORMING PROCESS
    MICRO-CHANNELS
    PEMFC
    FABRICATION
    TITANIUM
    日期: 2018-07-19
    上传时间: 2019-01-17 13:11:38 (UTC+8)
    摘要: In this work, a high temperature proton exchange membrane fuel cell (HT-PEMFC) with stamped SS304 bipolar plates is successfully developed. Its performance was evaluated under two types of gaskets at different assembly torques and air stoichiometric ratios. The rates of pressure loss at a torque of 7 N-m with 50 Shore A hardness gaskets was 2.0 x 10(-3) MPa min(-1), which is acceptable. The best performance of the developed HT-PEMFC with stamped SS304 bipolar plates was 228.33 mW cm(-2), which approaches the performance of HT-PEMFCs with graphite bipolar plates. The optimal air stoichiometric ratio for the HT-PEMFC with stamped SS304 bipolar plates was 4.0, which is higher than that for proton exchange membrane fuel cells with CNC milled graphite bipolar plates. This is probably because of the deformation of the flow channels under the assembly compression force, which causes an elevated gas-diffusion drag in the flow channels. After the test, it was observed that some products of corrosion reaction formed on the surface of the SS304 bipolar plate. This phenomenon may lead to a decrease in the operating life of the HT-PEMFC. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
    显示于类别:[機械工程系暨機械工程學系數位機電研究所] 期刊論文

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