固体氧化物燃料电池性能分析与实验研究
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摘要
为了将固体氧化物燃料电池(SOFC)应用于密闭空间,首先基于Matlab/Simulink软件构建了SOFC一维分布式集中参数数学模型,并进行了仿真;其次,根据SOFC测试系统实验结果对SOFC的性能进行验证,得到了固体氧化物燃料电池的效率曲线、极化曲线、不同氧氮比时的伏安特性及效率曲线,从而确定了电池最佳工作效率点;再次,根据实验结果和仿真数据确定了电堆的最佳工作温度,并通过电炉加热和水冷却系统实现了电堆热管理;最后,研究了不同氧氮比对电池性能的影响。结果表明:提高氧氮比能小幅提升电效率。
In order to apply solid oxide fuel cell(SOFC) in confined space, a one-dimensional distributed lumped parameter mathematical model of SOFC is built based on Matlab/Simulink software. The performance of SOFC is studied through computer simulation and the experiment results of 1 kW SOFC test system. The efficiency curves, polarization curves, volt ampere characteristics and efficiency curves at different oxygen and nitrogen ratios are obtained whereby the optimum efficiency of the fuel cell was determined. The optimum operating temperature of the stack is determined according to the experimental results and simulation data, and the thermal management of the reactor is realized through electric furnace and water cooling system. Study of the effect of different oxygen-nitrogen ratio on the performance of the fuel cell indicates that improvement of oxygen-nitrogen ratio can slightly increase the electrical efficiency, which has some guiding significance for the application of solid oxide fuel cell in submarine.
In order to apply solid oxide fuel cell(SOFC) in confined space, a one-dimensional distributed lumped parameter mathematical model of SOFC is built based on Matlab/Simulink software. The performance of SOFC is studied through computer simulation and the experiment results of 1 kW SOFC test system. The efficiency curves, polarization curves, volt ampere characteristics and efficiency curves at different oxygen and nitrogen ratios are obtained whereby the optimum efficiency of the fuel cell was determined. The optimum operating temperature of the stack is determined according to the experimental results and simulation data, and the thermal management of the reactor is realized through electric furnace and water cooling system. Study of the effect of different oxygen-nitrogen ratio on the performance of the fuel cell indicates that improvement of oxygen-nitrogen ratio can slightly increase the electrical efficiency, which has some guiding significance for the application of solid oxide fuel cell in submarine.
引文
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[3] 李大鹏,王臻.国外潜艇AIP动力装置的现状与发展 [J].中外船舶科技,2015,2(1):16-19.LI Da-peng,WANG Zhen.Current situation and development of foreign submarine AIP power plant [J].Chinese and Foreign Ship Technology,2015,2(1):16-19.(in Chinese)
[4] 孙玉绣,汪浩.固体氧化物燃料电池的动态建模与预测控制 [M].北京:机械工程出版社,2015.
[5] ZHENG Yi-feng,LI Qing-shan,GUAN Wan-bin,et al.Investigation of 30-cell solid oxide electrolyzer stack modules for hydrogen production [J].Journal of Power Energy,2014,40:5801-5809.
[6] 乔威,丁泽庭,韩吉田.固体氧化物燃料电池分布参数模拟研究 [J].工程热物理学报,2016,1(1):135-140.QIAO Wei,DING Ze-ting,HAN Ji-tian.Research on distribution parameter simulation of solid oxide fuel cells [J].Engineering Thermophysics,2016,1(1):135-140.(in Chinese)
[7] 闫东,梁前超.基于Simulink的SOFC-MGT联合发电系统建模与仿真 [J].装备制造技术,2017(7):175-178.YAN Dong,LIANG Qian-chao.Modeling and simulation of SOFC-MGT combined power system based on Simulink [J].Equipment Manufacturing Technology,2017(7):175-178.(in Chinese)
[8] LI Qing-shan,ZHENG Yi-feng,et al.Achieving high-efficiency hydrogen production using planar solid-oxide electrolysis stacks [J].Internation Journal of Hydrogen Energy,2014,39(21):10833-10842.
[9] 詹海洋,梁前超,朱润凯.模糊综合评判在SOFC-GT联合发电系统安全性评估中的应用 [J].船电技术,2016,36(10):34-37.ZHAN Hai-yang,LIANG Qian-chao,ZHU Run-kai.Application of fuzzy comprehensive evaluation in the safety assessment of SOFC-GT combined power generation system [J].Marine Electricity Technology,2016,36 (10):34-37.(in Chinese)