Experimental and theoretical model study on effective thermal conductivity of SOFC porous electrode

Huang Zhipeng; Zhao Mengtian; Yang Xigang; Wang Yuzhang

doi:10.11729/syltlx20190018

Volume 33 Issue 6

Dec. 2019

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Huang Zhipeng, Zhao Mengtian, Yang Xigang, et al. Experimental and theoretical model study on effective thermal conductivity of SOFC porous electrode[J]. Journal of Experiments in Fluid Mechanics, 2019, 33(6): 1-6. doi: 10.11729/syltlx20190018

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Experimental and theoretical model study on effective thermal conductivity of SOFC porous electrode

doi: 10.11729/syltlx20190018

1.
School of Mechanical Engineering, Key Laboratory for Power Machinery and Engineering of Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
2.
Guodian Science and Technology Research Institute Co., Ltd., Nanjing 210023, China

Received Date: 2019-01-21
Rev Recd Date: 2019-03-22
Publish Date: 2019-12-25

Abstract

Abstract

The flow heat transfer and chemical reaction inside the Solid Oxide Fuel Cell (SOFC) are complex, and it is easy to generate thermal imbalance zones. Obtaining high-precision effective thermal conductivity of porous electrodes is of great significance for the establishment of numerical analysis models of multi-physics field coupling and the thermal management. In this paper, an experimental platform and measurement system for the effective heat conduction system of porous materials was designed and constructed, which is based on the steady-state method. The temperature distribution of the porous electrode test specimens was measured in detail in the temperature range of 372.1~932.4K. Through the theoretical analysis of heat transfer in porous materials, the calculation model of the comprehensive effective thermal conductivity of temperature-corrected SOFC porous electrodes was constructed using the scale factor t, which combines the existing EMT and ME1 mathematical models. In addition, the validity and high precision of the effective thermal conductivity model were verified by comparing the calculated values with the experimental measurements of the surface temperatures of the three test specimens with the porosity of 0.2349~0.4178.
- SOFC,
- porous electrode,
- effective thermal conductivity,
- porous model

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References(16)

References

[1]	Gupta N, Yadav G D. Solid oxide fuel cell: a review[J]. International Research Journal of Engineering and Technology, 2016, 3(6): 1006-1011. http://d.old.wanfangdata.com.cn/Periodical/xyjsclygc200508001
[2]	Koteswararao P, Suresh M B, Wanic B N, et al. Review on ceramics for solid oxide fuel cells[J]. International Journal of Scientific Research in Science, Engineering and Technology, 2017, 3(8): 342-346.
[3]	Zeng S M, Xu M, Parbey J, et al. Thermal stress analysis of a planar anode-supported solid oxide fuel cell: Effects of anode porosity[J]. International Journal of Hydrogen Energy, 2017, 42(31): 20239-20248. doi: 10.1016/j.ijhydene.2017.05.189
[4]	Barelli L, Bidini G, Ottaviano A. Solid oxide fuel cell modeling: Electrochemical performance and thermal management during load following operation[J]. Energy, 2016, 115: 107-119. doi: 10.1016/j.energy.2016.08.107
[5]	Boaro M, Aricò A S. Advances in medium and high temperature solid oxide fuel cell technology[M]. Cham, Switzerland: Springer, 2017.
[6]	Rao Z H, Wang Q C, Huang C L. Investigation of the thermal performance of phase change material/mini-channel coupled battery thermal management system[J]. Applied Energy, 2016, 164: 659-669. doi: 10.1016/j.apenergy.2015.12.021
[7]	姚凯, 郑会保, 刘运传, 等.导热系数测试方法概述[J].理化检验(物理分册), 2018, 54(10): 741-747. http://d.old.wanfangdata.com.cn/Periodical/lhjy-wl201810007 Yao K, Zheng H B, Liu Y C, et al. Survey of measurement methods for thermal conductivity[J]. Physical Testing and Chemical Analysis (Part A: Physical Testing), 2018, 54(10): 741-747. http://d.old.wanfangdata.com.cn/Periodical/lhjy-wl201810007
[8]	刘世杰, 吴鹏章, 王梦蛟, 等.一种基于稳态热流法的导热系数测定仪器及方法[J].橡塑技术与装备, 2017, 43(17): 45-47. http://d.old.wanfangdata.com.cn/Periodical/xsjsyzb201717010 Liu S J, Wu P Z, Wang M J, et al. An instrument and method for measuring the thermal conductivity based on steady-state heat flow method[J]. China Rubber/Plastics Technology and Equipment, 2017, 43(17): 45-47. http://d.old.wanfangdata.com.cn/Periodical/xsjsyzb201717010
[9]	任佳, 蔡静.导热系数测量方法及应用综述[J].计测技术, 2018, 38(S1): 46-49. http://d.old.wanfangdata.com.cn/Periodical/hkjcjs2018z1014 Ren J, Cai J. Summary of measurement methods and applications of thermal conductivity[J]. Metrology & Measure-ment Technology, 2018, 38(S1): 46-49. http://d.old.wanfangdata.com.cn/Periodical/hkjcjs2018z1014
[10]	Radovic M, Lara-Curzio E, Trejo R M, et al. Thermophysical properties of YSZ and Ni-YSZ as a function of temperature and porosity[J]. Advances in Solid Oxide Fuel Cells Ⅱ: Ceramic Engineering and Science Proceedings, 2009, 27(4): 79-85. http://cn.bing.com/academic/profile?id=8bebe7971bd1bf149388c9bc1e7ce6f1&encoded=0&v=paper_preview&mkt=zh-cn
[11]	付文强, 高辉, 薛征欣, 等.多孔材料有效导热系数的实验和模型研究[J].中国测试, 2016, 42(5): 124-130. http://d.old.wanfangdata.com.cn/Periodical/zgcsjs201605026 Fu W Q, Gao H, Xue Z X, et al. Experimental measurement and calculation of thermal conductivity of porous material[J]. China Measurement & Test, 2016, 42(5): 124-130. http://d.old.wanfangdata.com.cn/Periodical/zgcsjs201605026
[12]	王刚, 魏高升, 黄平瑞, 等.改进的新有效介质理论模型分析多孔绝热材料的有效导热系数[J].中国电机工程学报, 2016, 36(9): 2465-2469. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgdjgcxb201609019 Wang G, Wei G S, Huang P R, et al. Effective thermal conductivity analysis on porous thermal insulation material by the improved novel effective medium theory model[J]. Proceedings of the CSEE, 2016, 36(9): 2465-2469. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgdjgcxb201609019
[13]	付俊鹏, 蔡九菊.基于谢尔宾斯基地毯模型对烧结矿散料有效导热系数的研究[J].冶金能源, 2017, 36: 59-61. http://www.cqvip.com/QK/95660X/2017A01/673049683.html Fu J P, Cai J J. Research of the effective thermal conductivity of sinter packed based on sierpinski carpet[J]. Energy for Metallurgical Industry, 2017, 36: 59-61. http://www.cqvip.com/QK/95660X/2017A01/673049683.html
[14]	王世芳, 吴涛.多孔介质有效热导率的一种新模型[J].工程热物理学报, 2016, 37(12): 2626-2630. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gcrwlxb201612022 Wang S F, Wu T. A new fractal model for the effective thermal conductivity of porous media[J]. Journal of Engineering Thermophysics, 2016, 37(12): 2626-2630. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gcrwlxb201612022
[15]	Zhai S P, Zhang P, Shi B, et al. Effective thermal conductivity of polymer composites: Theoretical models and simulation models[J]. International Journal of Heat and Mass Transfer, 2018, 117: 358-374. doi: 10.1016/j.ijheatmasstransfer.2017.09.067
[16]	Carson J K, Lovatt S J, Tanner D J, et al. Predicting the effective thermal conductivity of unfrozen, porous foods[J]. Journal of Food Engineering, 2006, 75(3): 297-307. doi: 10.1016/j.jfoodeng.2005.04.021