A three-dimensional non-isothermal model for a membraneless direct methanol redox fuel cell
文献类型：期刊论文
| 作者 | Wei, Lin2; Yuan, Xianxia1; Jiang, Fangming2
|
| 刊名 | JOURNAL OF POWER SOURCES
 |
| 出版日期 | 2018-05-01 |
| 卷号 | 385页码:130-140 |
| 关键词 | Direct methanol fuel cell Redox couple Membraneless Fuel cell modeling |
| ISSN号 | 0378-7753 |
| DOI | 10.1016/j.jpowsour.2018.03.037 |
| 通讯作者 | Jiang, Fangming(fm_jiang2000@yahoo.com) |
| 英文摘要 | In the membraneless direct methanol redox fuel cell (DMRFC), three-dimensional electrodes contribute to the reduction of methanol crossover and the open separator design lowers the system cost and extends its service life. In order to better understand the mechanisms of this configuration and further optimize its performance, the development of a three-dimensional numerical model is reported in this work. The governing equations of the multi-physics field are solved based on computational fluid dynamics methodology, and the influence of the CO2 gas is taken into consideration through the effective diffusivities. The numerical results are in good agreement with experimental data, and the deviation observed for cases of large current density may be related to the single-phase assumption made. The three-dimensional electrode is found to be effective in controlling methanol crossover in its multi-layer structure, while it also increases the flow resistance for the discharging products. It is found that the current density distribution is affected by both the electronic conductivity and the concentration of reactants, and the temperature rise can be primarily attributed to the current density distribution. The sensitivity and reliability of the model are analyzed through the investigation of the effects of cell parameters, including porosity values of gas diffusion layers and catalyst layers, methanol concentration and CO2 volume fraction, on the polarization characteristics. |
| WOS关键词 | FEED DIRECT METHANOL ; FLOWING-ELECTROLYTE ; WATER TRANSPORT ; OPERATION |
| 资助项目 | National Natural Science Foundation of China[21476138] ; National Natural Science Foundation of China[21776176] ; Natural Science Foundation of Guangdong Province[2017A000310186] ; Natural Science Foundation of Guangdong Province[2015A030308019] ; Natural Science Foundation of Guangdong Province[2016A030313172] |
| WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000430779400016 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province |
| 源URL | [http://ir.giec.ac.cn/handle/344007/23392]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Jiang, Fangming |
| 作者单位 | 1.Shanghai Jiao Tong Univ, Dept Chem Engn, Shanghai 200240, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Lab Adv Energy Syst, CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Lin,Yuan, Xianxia,Jiang, Fangming. A three-dimensional non-isothermal model for a membraneless direct methanol redox fuel cell[J]. JOURNAL OF POWER SOURCES,2018,385:130-140. |
| APA | Wei, Lin,Yuan, Xianxia,&Jiang, Fangming.(2018).A three-dimensional non-isothermal model for a membraneless direct methanol redox fuel cell.JOURNAL OF POWER SOURCES,385,130-140. |
| MLA | Wei, Lin,et al."A three-dimensional non-isothermal model for a membraneless direct methanol redox fuel cell".JOURNAL OF POWER SOURCES 385(2018):130-140. |
入库方式： OAI收割
来源：广州能源研究所
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