Study on Gas-Liquid Two Phase Flow in Polymer Electrolyte Fuel Cell

聚合物电解质燃料电池气液两相流研究

• 批准号: 13650192
• 负责人: EJIRI Eiji
• 金额: $ 1.98万
• 依托单位: Chiba Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13650192/
• 关键词: Fuel Cell; Solid Polymer; Flow Channel; Generator Performance; Single Cell; Air Flow; Hydrogen Flow; Air Utility Rate; 圧力損失; 固体高分子膜; セパレータ; デッドエンド系; 出力; 発電効率; 固体高分子型燃料電池; レイノルズ数; アスペクト化

Flow measurement techniques in a single cell channel were examined and the relationship between the supplied gas property and the fuel cell performance was investigated for technology development of Polymer Electrolyte Fuel Cell (PEFC). First, three types of single cell channel models simulating PEFC flow channels with different aspect ratios were manufactured, then pressure distribution along the internal flow channel was measured while inlet pressure and flow rate of supplied air were varied. As a result, it was found difficult to clearly separate the bend loss from the friction loss in the straight part of the channel by acquiring pressure data from a lot of measuring points on a straight line and a bend. However, it was found possible to evaluate the bend loss without any serious problems by acquiring pressure data from several measuring points located in the center of each straight line and by using a relatively accurate prediction formula for friction loss prediction. Second, a s … More ingle cell of PEFC with gas channels similar to those used in the aforementioned air flow measurement was manufactured, then generator performance was measured with air and hydrogen (in dead-end system) supplied. Varied parameters were air utility rate (20%-80%), with/without humidification, supplied gas pressure (50kPa, 100kPa). Air utility rate had the strongest influence on generator performance as far as the experiment was concerned. Generator performance, such as voltage, power and efficiency was higher in higher air utility rate, without humidification and in higher gas pressure. For further study, it will be necessary to investigate influence of other parameters on fuel cell performance as well as to clarify the performance dominating mechanism by measuring internal resistance in detail. On the other hand, it will be also important to measure internal flow while electricity is generated because a lot is still to be clarified in the flow behavior in the channel as seen in flooding. Less

为聚合物电解质燃料电池（PEFC）技术的发展，对单电池通道内的流量测量技术进行了研究，并探讨了供气特性与燃料电池性能之间的关系。首先，制作了3种不同长宽比的单电池流道模型，测量了不同进气压力和进气流量时，电池内部流道沿着的压力分布。结果，发现通过从直线和弯曲上的许多测量点获取压力数据，难以清楚地分离通道的直线部分中的弯曲损失和摩擦损失。然而，通过从位于每条直线中心的几个测量点获取压力数据并通过使用相对精确的预测公式来预测摩擦损失，发现可以评估弯曲损失而没有任何严重问题。第二，一个s ...更多信息 制造具有与上述空气流量测量中使用的气体通道类似的气体通道的PEFC的单电池，然后在供应空气和氢气（在死端系统中）的情况下测量发电机性能。改变参数为空气利用率（20%~ 80%）、加湿与否、供气压力（50 kPa、100 kPa）。就实验而言，空气利用率对发电机性能的影响最大。空气利用率越高、不加湿和气压越高，发电机的电压、功率和效率越高。为了进一步研究，有必要研究其他参数对燃料电池性能的影响，并通过详细测量内阻来阐明性能的主导机制。另一方面，在发电时测量内部流量也很重要，因为在洪水中看到的通道中的流动行为仍有很多问题有待澄清。少

项目成果

Eiji EJIRI, Kazuichiro MINAMI and Kenji TSUJIMURA: "Study on Gas-Liquid Two Phase Flow in Polymer Electrolyte Fuel Cell (1^<st> Report: Measurements of Air Flow in a Single Cell Model)"Report of Research Institute 2001. Vol. 8. 1-3 (2002)

Eiji EJIRI、Kazuichiro MINAMI 和 Kenji TSUJIMURA：“聚合物电解质燃料电池中气液两相流的研究（第 1 次报告：单电池模型中空气流量的测量）”研究所报告 2001 年。卷。

江尻英治 他2名: "固体高分子型燃料電池における気液二相続の研究"千葉工業大学付属研究所研究報告. 第8巻. 1-3 (2002)

Eiji Ejiri等2人：“聚合物电解质燃料电池中的气液双继承研究”千叶工业大学研究报告第8卷1-3（2002年）。

江尻 英治, 南 和一郎, 辻村 欽司: "固体高分子型燃料電池における気液二相流の研究(第1報、単セルモデル内の空気流れの計測)"千葉工業大学付属研究所研究報告. 8. 1-3 (2002)

Eiji Ejiri、Kazuichiro Minami、Kinji Tsujimura：“聚合物电解质燃料电池中气液两相流的研究（首次报告，单电池模型中空气流量的测量）”千叶工业大学研究报告8. 1-。 3（2002）