湖南电力 ›› 2023, Vol. 43 ›› Issue (6): 31-36.doi: 10.3969/j.issn.1008-0198.2023.06.006

• 研究与试验 • 上一篇    下一篇

燃料气参数对固体氧化物燃料电池放电特性影响研究

刘汉宇1, 季炫宇1,2, 周雄1,2, 杨宇1   

  1. 1.重庆科技学院,重庆 401331;
    2.生活垃圾资源化处理省部共建协同创新中心,重庆 401331
  • 收稿日期:2023-09-11 修回日期:2023-10-05 出版日期:2023-12-25 发布日期:2024-01-07
  • 通信作者: 季炫宇(1981),男,副教授,研究方向为清洁燃烧技术、固废处理及资源化利用。
  • 作者简介:刘汉宇(1999),男,硕士研究生在读,研究方向为固废处理及资源化利用。
  • 基金资助:
    国家自然科学基金青年科学基金项目(52100138);重庆科技学院硕士研究生科技创新项目(YKJCX2220337)

Study on Effects of Fuel Gas Parameters on Discharge Characteristics of Solid Oxide Fuel Cells

LIU Hanyu1, JI Xuanyu1,2, ZHOU Xiong1,2, YANG Yu1   

  1. 1. Chongqing University of Science and Technology, Chongqing 401331, China;
    2. Provincial and Ministerial Collaborative Innovation Center for Domestic Garbage Resource Treatment, Chongqing 401331, China
  • Received:2023-09-11 Revised:2023-10-05 Online:2023-12-25 Published:2024-01-07

摘要: 固体氧化物燃料电池(solid oxide fuel cell,SOFC)技术是一种清洁高效的发电技术,其高温特性容易实现热电联产,具有较好的发展前景。为探究不同燃料气的参数对固体氧化物燃料电池放电特性的影响,搭建500 W SOFC实验台架,进行氢气放电实验、甲烷干重整放电实验及耐久性实验,分析燃料气流量、QCO2/QCH4进气比例等参数对开路电压及电功率的影响。结果表明:随着燃料流量的增加,电池的开路电压、功率会随之增加,在2 L/min时增幅趋于稳定;当QCO2/QCH4=1∶1、CH4流量为2 L/min时,甲烷干重整放电性能最佳;当QCO2/QCH4=1.5时,SOFC放电性能受流量影响较小,在此进气比例下,更利于实现低燃料流量、高电流密度放电,使SOFC放电功率最大化。

关键词: 固体氧化物燃料电池, 氢气, 甲烷干重整, 进气比, 进气流量

Abstract: Solid oxide fuel cell (SOFC) technology is a clean and efficient power generation technology, and its high temperature characteristics make it easy to realize cogeneration, which has a good development prospect. In order to investigate the influence of different fuel gas parameters on the discharge characteristics of SOFC, a 500W SOFC experimental rig was built, and hydrogen discharge experiments, methane dry reforming discharge experiments, and durability experiments were conducted to analyze the influence of fuel gas flow rate and CH4/CO2 inlet ratio on the open-circuit voltage and electric power. The results show that with the increase of fuel flow, the open-circuit voltage of the battery, the power will increase, and the increase tends to stabilize at 2 L/min.When QCO2/QCH4=1∶1 and CH4 flow rate is 2 L/min, the methane dry reforming discharge performance is the best. When QCO2/QCH4=1.5, the SOFC discharge performance is less affected by the flow rate, and under this inlet ratio, it is more conducive to achieve low fuel flow rate and high current density discharge to maximize the SOFC discharge power.

Key words: solid oxide fuel cell, hydrogen, methane dry reforming, intake ratio, intake flow rate

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