Measurements in the Recirculation Path of a Fuel Cell System

Frank Allmendinger, Benedikt Martin, Marlen Schmidtmann
{"title":"Measurements in the Recirculation Path of a Fuel Cell System","authors":"Frank Allmendinger, Benedikt Martin, Marlen Schmidtmann","doi":"10.4271/2024-01-3009","DOIUrl":null,"url":null,"abstract":"The study demonstrates the possibility and in particular the method to derive the efficiency of the entire fuel cell power system by measuring specific data of the recirculation path of the anode circuit of a fuel cell system. The results demonstrate the capabilities of the existing test rig and enable investigations on the suitability of auxiliary components. This study focuses on the hydrogen recirculation path equipped with multiple sensors and a needle valve to enable the required operating conditions of the fuel cell.Running a startup load profile without reaching the equilibrium state at all steps, the dynamic of the system and the requirements to the sensor parameters, such as sampling rate and precision, was seen. Additionally, it became obvious that the recirculation pump used is oversized, but a load point shift compensated this artifact. In detail, the stoichiometry and the efficiency of the entire system was evaluated. It was seen that the hydrogen concentration is approximately constant over the whole range of power of the fuel cell. Furthermore, all the results corresponded to the expectations so that it can be assumed that the test bench is working correctly. Further investigations will follow.","PeriodicalId":510086,"journal":{"name":"SAE Technical Paper Series","volume":"26 15","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"SAE Technical Paper Series","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4271/2024-01-3009","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

The study demonstrates the possibility and in particular the method to derive the efficiency of the entire fuel cell power system by measuring specific data of the recirculation path of the anode circuit of a fuel cell system. The results demonstrate the capabilities of the existing test rig and enable investigations on the suitability of auxiliary components. This study focuses on the hydrogen recirculation path equipped with multiple sensors and a needle valve to enable the required operating conditions of the fuel cell.Running a startup load profile without reaching the equilibrium state at all steps, the dynamic of the system and the requirements to the sensor parameters, such as sampling rate and precision, was seen. Additionally, it became obvious that the recirculation pump used is oversized, but a load point shift compensated this artifact. In detail, the stoichiometry and the efficiency of the entire system was evaluated. It was seen that the hydrogen concentration is approximately constant over the whole range of power of the fuel cell. Furthermore, all the results corresponded to the expectations so that it can be assumed that the test bench is working correctly. Further investigations will follow.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
测量燃料电池系统的再循环路径
这项研究证明了通过测量燃料电池系统阳极回路再循环路径的具体数据来推导整个燃料电池动力系统效率的可能性,特别是方法。研究结果证明了现有测试平台的能力,并有助于研究辅助组件的适用性。这项研究的重点是氢气再循环路径,该路径配备了多个传感器和一个针阀,以满足燃料电池所需的运行条件。在运行启动负载曲线时,所有步骤均未达到平衡状态,因此可以看到系统的动态以及对传感器参数的要求,如采样率和精度。此外,还发现所使用的再循环泵尺寸过大,但负载点的移动弥补了这一缺陷。具体而言,对整个系统的化学计量和效率进行了评估。结果表明,在燃料电池的整个功率范围内,氢浓度大致恒定。此外,所有结果都符合预期,因此可以认为试验台工作正常。接下来还将进行进一步的研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Thermal coupled structural analysis of a brake disc Development of Brake Shoe with Carbon Footprint Reduction Emergency Braking System: Verification of system behavior on commercial vehicles equipped with drum braking system Assets Maintenance Strategy Based on Operational Data Analysis Microstructural Analysis and Tribological Performance of Composite Iron Sulfides in Automotive Brake Pads
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1