| 摘要: |
| 为了研究可逆固体氧化物燃料电池（rSOFC）的宏观性能，利用流体力学描述rSOFC多物理输运过程、水气反应（WGS）和电化学反应，并采用Ansys/Fluent建立了二维单通道rSOFC的数值模型，研究以合成气为燃料的rSOFC电极厚度和气体组分等因素对电流密度、WGS反应速率和燃料利用率等性能的影响。结果表明，电极的厚度和气体组分等参数对rSOFC宏观性能有较大影响；WGS在rSOFC反应过程中起着重要作用；在SOFC/SOEC（固体氧化物燃料电解池）双模式运行下，C/H元素比的增大会改善电流密度和电化学反应的不均匀分布。 |
| 关键词: 船舶推进系统 燃料电池 数值模拟 水气反应 优化 |
| DOI：10.13675/j.cnki.tjjs.200393 |
| 分类号:V231.1 |
| 基金项目:浙江省新苗人才计划（2019R405076）；研究生科研创新基金（G19114）；宁波科技创新重大专项（2019B10043）。 |
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| Numerical Simulation of Reversible Solid Oxide Fuel Cell Performance |
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FENG Xiang1, YANG Chao1,2, LIANG Chao-yu1, HAN Yue1, LI Xin-ke1, ZHENG Jian-min1, YUAN Jin-liang1
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1.Faculty of Maritime and Transportation，Ningbo University，Ningbo 315832，China;2.Merchant Marine College，Shanghai Maritime University，Shanghai 201306，China
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| Abstract: |
| To investigate the macroscopic properties of reversible solid oxide fuel cells （rSOFC）， the fluid mechanics was used to describe rSOFC multi-physical transport processes， hydro-gas reactions （WGS） and electrochemical reactions. In addition， Ansys Fluent numerical model of two-dimensional single-channel rSOFC was established to study the effects of syngas fuel rSOFC electrode thickness and gas composition on current density， WGS reaction rate and fuel utilization. The predicted results show that both electrode thickness and gas composition have great influence on the rSOFC overall performance and WGS plays an important role in rSOFC reaction. Under the SOFC/SOEC（solid oxide electrolysis cell）dual operating mode， increasing of C/H ratio in the syngas fuel gases may improve uneven distribution of the current density and the electrochemical reactions. |
| Key words: Ship propulsion system Fuel cell Numerical simulation Water-gas shift reaction Optimization |
