CIESC Journal ›› 2022, Vol. 73 ›› Issue (12): 5572-5580.DOI: 10.11949/0438-1157.20220933

• Energy and environmental engineering • Previous Articles     Next Articles

Numerical simulation of novel SOFC interconnector with thermoelectric co-enhancement

Keqing ZHENG1(), Ya SUN1,2, Yangtian YAN1, Li LI3,4, Jun YANG5()   

  1. 1.School of Low-Carbon Energy and Power Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
    2.Hudong-Zhonghua Shipbuilding (Group) Co. Ltd. , Shanghai 200135, China
    3.School of Automotive and Traffic Engineering, Jiangsu University of Technology, Changzhou 213001, Jiangsu, China
    4.School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China
    5.Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang, China
  • Received:2022-07-01 Revised:2022-10-27 Online:2023-01-17 Published:2022-12-05
  • Contact: Jun YANG

一种热电协同增强的固体氧化物燃料电池新型连接件的数值模拟

郑克晴1(), 孙亚1,2, 闫阳天1, 李丽3,4, 杨钧5()   

  1. 1.中国矿业大学低碳能源与动力工程学院,江苏 徐州 221116
    2.沪东中华造船(集团)有限公司,上海 200135
    3.江苏理工学院汽车与交通工程学院,江苏 常州 213001
    4.西安交通大学电气工程学院,陕西 西安 710049
    5.中国科学院宁波材料技术与工程研究所,浙江 宁波 315201
  • 通讯作者: 杨钧
  • 作者简介:郑克晴(1989—),女,博士,副教授,keqingzheng@126.com
  • 基金资助:
    国家自然科学基金青年基金项目(51806241)

Abstract:

The development of thermal management technology is of great significance to the industrialization of solid oxide fuel cell (SOFC). At present, the main method of SOFC thermal management is to supply excess air into the cathode to take away the waste heat. However, this method results in high extra power consumption due to the small specific heat capacity of air. Therefore, in this paper, a novel interconnector is proposed for SOFC thermal management, in which the in-site heat production of the cell is balanced by the heat absorption of NH3 cracking reaction. The results show that compared with the excess air thermal management method, the novel interconnector reduces the maximum temperature difference in the cell by 80.2% and improves the cell performance by 23.1%. The numerical results demonstrate the potential of the novel interconnector for thermo-electric synergistic enhancement.

Key words: fuel cell, numerical simulation, chemical reaction, thermal management, interconnector

摘要:

热管理技术的发展对于固体氧化物燃料电池(solid oxide fuel cell,SOFC)产业化具有重要意义。目前SOFC热管理的主要方法为在阴极通入过量空气,以空气带走电池的产热。由于空气的比热容较小,这种热管理方法导致较高的额外功耗。因此基于氨气裂解吸热效应,提出一种新型连接件,通过平衡局部氨气裂解吸热量与电化学反应放热量实现SOFC热管理。数值模拟结果表明,相比于过量空气的热管理方法,新型连接件使电池的最大温度差降低了80.2%,使电池性能提高了23.1%,证明了新型连接件具有热电协同增强的潜力。

关键词: 燃料电池, 数值模拟, 化学反应, 热管理, 连接件

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