A numerical investigation on combustion characteristics of H-2/air mixture in a microcombustor with wall cavities
文献类型：期刊论文
| 作者 | Wan, Jianlong1; Yang, Wei1; Fan, Aiwu1; Liu, Yi1; Yao, Hong1; Liu, Wei1; Du, Yiqing1; Zhao, Daiqing2 |
| 刊名 | international journal of hydrogen energy
 |
| 出版日期 | 2014-05-15 |
| 卷号 | 39期号:15页码:8138-8146 |
| 关键词 | Micro combustion Cavity Length-depth ratio Flame-splitting limit Recirculation zone |
| 英文摘要 | combustion characteristics of h-2/air mixture in a micro-combustor with wall cavities were investigated numerically. the effects of inlet velocity, equivalence ratio, and the length-depth ratio of the cavity were studied. the results show that at a high enough velocity the flame splits in the middle which leads to a large amount of fuel leakage and a sharp decrease in the conversion rate of hydrogen. meanwhile, the flame splits at the inner wall which gives rise to two high temperature regions and double temperature peaks at outer wall. moreover, the flame-splitting limit is extended at a higher equivalence ratio due to a more intensive reaction. furthermore, the flame-splitting limit increases for a larger length-depth ratio of the cavity, whereas the wall temperature level decreases. therefore, excessive large length-depth. ratios are not beneficial for this type of micro-combustors if the combustor walls are used as heat sources of thermoelectric or thermal photovoltaic devices. copyright (c) 2014, hydrogen energy publications, llc. published by elsevier ltd. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; electrochemistry ; energy & fuels |
| 研究领域[WOS] | chemistry ; electrochemistry ; energy & fuels |
| 关键词[WOS] | micro-combustor ; flame stabilization ; bluff-body ; hydrogen/air flame ; high-temperature ; air ; dynamics ; channel ; microchannels ; simulation |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000336338500056 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/10701]  |
| 专题 | 中国科学院广州能源研究所 |
| 作者单位 | 1.Huazhong Univ Sci & Technol, State Key Lab Coal Combust, Wuhan 430074, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wan, Jianlong,Yang, Wei,Fan, Aiwu,et al. A numerical investigation on combustion characteristics of H-2/air mixture in a microcombustor with wall cavities[J]. international journal of hydrogen energy,2014,39(15):8138-8146. |
| APA | Wan, Jianlong.,Yang, Wei.,Fan, Aiwu.,Liu, Yi.,Yao, Hong.,...&Zhao, Daiqing.(2014).A numerical investigation on combustion characteristics of H-2/air mixture in a microcombustor with wall cavities.international journal of hydrogen energy,39(15),8138-8146. |
| MLA | Wan, Jianlong,et al."A numerical investigation on combustion characteristics of H-2/air mixture in a microcombustor with wall cavities".international journal of hydrogen energy 39.15(2014):8138-8146. |
入库方式： OAI收割
来源：广州能源研究所
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