Numerical investigation on the performance of bluff body augmented micro cavity-combustor
文献类型：期刊论文
| 作者 | Zhang Z1,4; Wu K(吴坤)3; Yuen R1; Yao W(姚卫)2,3 ; Wang J4
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| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2020-02-07 |
| 卷号 | 45期号:7页码:4932-4945 |
| 关键词 | Micro combustor Cavity Bluff body Combustion efficiency Local Damkohler number |
| ISSN号 | 0360-3199 |
| DOI | 10.1016/j.ijhydene.2019.12.004 |
| 通讯作者 | Yao, Wei(weiyao@imech.ac.cn) ; Wang, Jian(wangj@ustc.edu.cn) |
| 英文摘要 | Bluff body augmented micro-cavity combustors are proposed in this study to enhance the combustion efficiency under high inlet velocities. The original and two types of bluff body supplemented micro cavity combustors, namely CAVITY, TRIANGLE, and FIN combustors are numerically investigated. The results show that the combustion efficiency (eta(c)) of bluff body augmented combustors are higher than that of the CAVITY combustor, and the largest increment of 10.8% is obtained in the FIN combustor. The underlying mechanisms for the improvement in eta(c) of the FIN and TRIANGLE combustors have been analyzed. It is demonstrated that the altered flow field structures and transvers reactant transport induced by the bluff body play dominant roles. Moreover, the local Damkohler number (Da(L)) is introduced, which is defined as the ratio of the local hydrogen reaction rate and the convective mass transport rate. The variation of eta(c), along the streamwise direction in the proposed combustors is determined by the value of Da(L). (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. |
| 分类号 | 二类 |
| WOS关键词 | PREMIXED HYDROGEN/AIR FLAMES ; LEAN H-2/AIR FLAMES ; HEAT RECIRCULATION ; SPLITTING LIMIT ; EFFICIENCY ; WALL ; TEMPERATURE ; STABILIZATION ; MICROCHANNELS ; PROPAGATION |
| 资助项目 | National Key R&D Program of China[2018YFC0809500] ; Training Program of the Major Research Plan of National Natural Science Foundation of China[91641110] |
| WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:000514018600089 |
| 资助机构 | National Key R&D Program of China ; Training Program of the Major Research Plan of National Natural Science Foundation of China |
| 其他责任者 | Yao, Wei ; Wang, Jian |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/81613]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 作者单位 | 1.City Univ Hong Kong, Dept Civil & Architectural Engn, Kowloon, Hong Kong, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; 4.Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhang Z,Wu K,Yuen R,et al. Numerical investigation on the performance of bluff body augmented micro cavity-combustor[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2020,45(7):4932-4945. |
| APA | Zhang Z,吴坤,Yuen R,姚卫,&Wang J.(2020).Numerical investigation on the performance of bluff body augmented micro cavity-combustor.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,45(7),4932-4945. |
| MLA | Zhang Z,et al."Numerical investigation on the performance of bluff body augmented micro cavity-combustor".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 45.7(2020):4932-4945. |
入库方式： OAI收割
来源：力学研究所
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