5 kW重整甲醇高温质子交换膜燃料电池系统设计与性能
Design and performance of 5 kW reforming methanol high temperature proton exchange membrane fuel cell system
张劲 1郭志斌 2罗来明 1卢善富 1相艳1
作者信息
- 1. 北京航空航天大学能源与动力工程学院仿生能源材料与器件北京市重点实验室,北京 100191
- 2. 北京海得利兹新技术有限公司,北京 102600
- 折叠
摘要
相对于纯氢,液态甲醇具有储运方便、来源广泛以及体积能量密度高等优点,并可通过现场重整制氢与高温质子交换膜燃料电池(HT-PEMFC)联合发电,有望解决低温PEMFC用氢难的挑战.优选具有完全自主知识产权的高性能HT-PEMFC电堆与甲醇重整器(MSR),其中HT-PEMFC电堆在160℃、氢/空和低化学计量比下的输出功率可达5.46 kW@80 A,而甲醇重整器输出气量达5 m3(标准状况)/h,氢气浓度高达74.8%,CO浓度仅为1%,满足HT-PEMFC运行需求.将MSR与HT-PEMFC进行耦合,采用高、低温热子系统并联的方式构建了高性能的MSR/HT-PEMFC系统,其输出功率与电堆在纯氢条件下的输出功率相同,而甲醇水溶液(体积比6/4)单耗最低仅为0.81 kg/(kW·h),表明该系统甲醇水溶液单耗低、输出性能高,具有广阔的应用前景.
Abstract
Compared with pure hydrogen,liquid methanol has the advantages of convenient storage and transportation,wide range of sources,and high volume energy density.It can also be used to produce hydrogen through on-site reforming and combine it with high-temperature proton exchange membrane fuel cells(HT-PEMFC)to generate electricity.It is expected to solve the challenge of using hydrogen in low-temperature PEMFC.In this work,an HT-PEMFC stack and a methanol reformer(MSR)were employed.The HT-PEMFC stack shows an output of 5.46 kW@80 A at 160℃and H2/air atmosphere.Meanwhile,the MSR has a gas flow rate of 5 m3/h,where the content of the syngas is 74.8%for H2,1%for CO and 24.2%for CO2.When the MSR and HT-PEMFC were integrated into the system with parallel configuration for the two thermal subsystems,the power output of the system is consistent with the value of the stack at H2/air atmosphere.More importantly,the methanol aqueous solution(volume ratio 6∶4)consumption rate of the system is only 0.81 kg/(kW·h).In conclusion,the MSR/HT-PEMFC system shows promising applications in stationary energy supply and emergency power supply.
关键词
燃料电池/重整甲醇燃料电池/甲醇重整器/系统/集成Key words
fuel cells/reforming methanol fuel cell/methanol reformer/system/integration引用本文复制引用
基金项目
北京市科委-中关村科技园区管理委员会项目(Z221100007522006)
国家自然科学基金(22178012)
国家自然科学基金(U22A20419)
出版年
2024
国家科技期刊平台
NSTL
万方数据