平板型固体氧化物燃料电池内温度分布规律

doi:10.11930/j.issn.1004-9649.202209095

中国电力 ›› 2023, Vol. 56 ›› Issue (6): 123-131.DOI: 10.11930/j.issn.1004-9649.202209095

平板型固体氧化物燃料电池内温度分布规律

张小坤¹, 吕大伟², 尹中强², 申双林¹, 王绍荣³

1. 中国矿业大学低碳能源与动力工程学院，江苏徐州 221116;
2. 北京质子动力发电技术有限公司，北京 100089;
3. 中国矿业大学化工学院，江苏徐州 221116

收稿日期:2022-09-23 修回日期:2023-03-06 发布日期:2023-07-04
作者简介:张小坤（1999—），男，硕士研究生，从事固体氧化物燃料电池研究，E-mail：744462817@qq.com;吕大伟（1981—），男，硕士，高级工程师，从事电力科研、科研管理及项目投评估研究，E-mail：Lvdawei_tju@aliyun.com;尹中强（1977—），男，硕士，经济师、工程师，从事综合能源服务及相关项目的落地应用研究，E-mail：yin_URSChina@126.com;申双林（1987—），男，通信作者，博士，讲师，从事固体氧化物燃料电池研究，E-mail：shensln@cumt.edu.cn;王绍荣（1964—），男，博士，教授，从事燃料电池及电解制氢研究，E-mail：srwang@cumt.edu.cn
基金资助:
国家自然科学基金资助项目（51836004）；西安交通大学动力工程多相流国家重点实验室开放课题。

Temperature Distribution in Planer Solid Oxide Fuel Cell

ZHANG Xiaokun¹, LV Dawei², YIN Zhongqiang², SHEN Shuanglin¹, WANG Shaorong³

1. School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou 221116, China;
2. Beijing Proton Power Generation Technology Co., Ltd., Beijing 100089, China;
3. School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China

Received:2022-09-23 Revised:2023-03-06 Published:2023-07-04
Supported by:
This work is supported by National Natural Science Foundation of China (No.51836004) and Open Project of State Key Laboratory of Multiphase Flow in Power Engineering of Xi'an Jiaotong University.

摘要/Abstract

摘要： 固体氧化物燃料电池（solid oxide fuel cell，SOFC）内温度梯度引起的热应力是制约其寿命的关键问题之一。针对传统SOFC温度分布测量实验中电炉对实验结果的影响，提出了采用对测试电池保温的方法，给电池提供近似绝热的工作环境，以便将实验结果拓展到实际电堆中。采用该方法，通过实验研究了平板型SOFC单电池内温度分布规律，实验结果表明：电池保温可有效降低电池与电炉间的换热，24 A放电时，电池内最大温度为782 ℃，比炉膛温度高32 ℃，证明电池保温可有效降低电炉的影响；当电流为18 A、24 A和30 A时，电池内最大温度分别为777 ℃、782 ℃和796 ℃，但最大温差均为5 ℃左右；电池内温度梯度受进气的冷却作用影响较大，但其影响范围较小，因此在电池气体入口局部会产生较大的温差，影响电池的运行安全性。

关键词: 固体氧化物燃料电池, 温度分布, 流场结构, 传热

Abstract: Thermal stress induced by temperature gradient in solid oxide fuel cell (SOFC) is one of the key problems restricting its life. In view of the influence of the electric furnace on the experimental results in the traditional SOFC temperature distribution measurement experiment, this paper proposes a method of insulating the test cell to provide an approximately adiabatic working environment for the cell, so as to expand the experimental results to the actual stack. Using this method, the temperature distribution law in the flat SOFC single cell was experimentally studied. The experimental results show that the cell insulation can effectively reduce the heat exchange between the cell and the electric furnace. At 24 A discharge, the maximum temperature in the cell is 782 ℃, 32 ℃ higher than that of the furnace, which proves that cell insulation can effectively reduce the influence of the electric furnace; when the discharge current is set at 18 A, 24 A and 30 A, the maximum temperature in the cell is 777 ℃, 782 ℃ and 796 ℃ respectively, but all the maximum temperature differences are about 5 ℃; the temperature gradient in the cell is greatly affected by the cooling effect of the intake air, but its influence range is small. Therefore, a large temperature difference will be generated locally at the gas inlet of the cell, which will affect the operational safety of the cell.

Key words: solid oxide fuel cell, temperature distribution, flow field structure, heat transfer

张小坤, 吕大伟, 尹中强, 申双林, 王绍荣. 平板型固体氧化物燃料电池内温度分布规律[J]. 中国电力, 2023, 56(6): 123-131.

ZHANG Xiaokun, LV Dawei, YIN Zhongqiang, SHEN Shuanglin, WANG Shaorong. Temperature Distribution in Planer Solid Oxide Fuel Cell[J]. Electric Power, 2023, 56(6): 123-131.

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平板型固体氧化物燃料电池内温度分布规律

Temperature Distribution in Planer Solid Oxide Fuel Cell

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