| 船用一体式可逆固体氧化物燃料电池的催化反应机理和传递过程的数值模拟分析 |
| 投稿时间：2019-10-17 修订日期：2019-12-24 点此下载全文 |
| 引用本文：阚安康,束晨,杨超,景秀辉,李平.船用一体式可逆固体氧化物燃料电池的催化反应机理和传递过程的数值模拟分析[J].上海海事大学学报,2020,41(4):108-116. |
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| 基金项目:国家自然科学基金（51679107）；浙江省新苗人才计划（2019R405076） |
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| 中文摘要:为研究可逆固体氧化物燃料电池（reversible solid oxide fuel cell, RSOFC）的催化反应机理和传递过程，基于多物理场传递和多步基元反应模型，采用合成气燃料，建立二维数学模型描述双向可逆工作过程，并通过实验进行验证。结果表明：电极吸附和解附反应分别集中于靠近气体通道和靠近电解质的区域；电极厚度和多孔微结构特征对气体扩散和表面成分分布影响显著。电化学反应集中在靠近电解质层的100 μm内。Nis和COs是发电和电解的主要表面成分。与宏观气体反应模型相比，表面基元反应模型的结果与实验值更接近。 |
| 中文关键词:可逆固体氧化物燃料电池（RSOFC） 船用电池 可逆工作 基元反应 电极厚度 |
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| Numerical simulation analysis on catalytic reaction mechanism and transfer process of marine integrated reversible solid oxide fuel cells |
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| Abstract:In order to study the catalytic reaction mechanism and transfer process of reversible solid oxide fuel cells (RSOFC), based on the multi physical field transfer and multi step elementary reaction model, a two dimensional mathematical model is established to describe the bidirectional reversible operation process using syngas fuel. The model is verified by experiments. The results show that the electrode adsorption and desorption reactions mostly take place near the gas channel and the electrolyte, respectively; the electrode thickness and the porous microstructure characteristics significantly affect gas diffusion and surface component distribution. The electrochemical reactions are concentrated within 100 μm close to the electrolyte layer. Nis and COs are the main surface components of power generation and electrolysis. Compared with the macroscopic gas reaction model, the results of the surface elementary reaction model are closer to the experimental values. |
| keywords:reversible solid oxide fuel cell (RSOFC) marine battery reversible operation elementary reaction electrode thickness |
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