Experimental analysis of low air pressure influences on fire plumes
文献类型：期刊论文
| 作者 | Zhou, ZH; Wei, Y; Li, HH; Yuen, R; Jian, W; Li HH ; Jian W; Jian W; Yao W(姚卫); Yao W(姚卫)
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| 刊名 | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
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| 出版日期 | 2014-03 |
| 卷号 | 70页码:578-585 |
| 通讯作者邮箱 | wangj@ustc.edu.cn |
| 关键词 | Low air pressure Burning rate Dimensionless heat release Fire plume |
| ISSN号 | 0017-9310 |
| 产权排序 | [Zhou, Zhihui; Li, Haihang; Jian, Wang] Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230027, Peoples R China; [Wei, Yao] Chinese Acad Sci, LHD, Inst Mech, Beijing 100190, Peoples R China; [Zhou, Zhihui; Yuen, Richard] City Univ Hong Kong, Dept Civil & Architectural Engn, Hong Kong 999077, Hong Kong, Peoples R China |
| 通讯作者 | Jian, W (reprint author), Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230027, Peoples R China. |
| 合作状况 | 国内 |
| 中文摘要 | To examine the pressure effect on burning rate, flame height and axial temperature distribution of diffusion fires, experimental measurement and theoretical analysis on circular n-Heptane fires with serial sizes were conducted at two altitudes, i.e. 100,8 kPa (in a sea-level city Hefei) and 64.3 kPa (in a Tibetan city Lhasa). From the results, the mean burning rate at quasi-steady stage and boiling stage consistently implied that the exponent alpha (m '' (D) over tilde P-x) varies for different heat transfer domination stages, i.e. alpha <= 0 for conductive stage and alpha = 2/3 for convective stage. Analysis shows that the flame height, the axial flame and plume temperatures are all well correlated with the dimensionless heat release rate Q similar to Q/(PD5/2), with the correlation coefficients derived from the current low-pressure measurements. Analysis shows that the flame height and the plume temperature increase with the pressure rise as a power function of pressure for the same pool size. (C) 2013 Elsevier Ltd. All rights reserved. |
| 学科主题 | Thermodynamics; Engineering; Mechanics |
| 分类号 | 一类 |
| 收录类别 | SCI ; EI |
| 资助信息 | The work described in this paper was supported by Key Program of National Natural Science Foundation of China (No. 51376172) and a Grant from the Research Grant Council of the Hong Kong Special Administrative Region [Project No. CityU 122612]. The authors deeply appreciate the supports. |
| 原文出处 | http://dx.doi.org/10.1016/j.ijheatmasstransfer.2013.11.042 |
| 语种 | 英语 |
| WOS记录号 | WOS:000330814800057 |
| 公开日期 | 2014-05-09 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/48754]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 通讯作者 | Jian W; Jian W |
| 推荐引用方式 GB/T 7714 | Zhou, ZH,Wei, Y,Li, HH,et al. Experimental analysis of low air pressure influences on fire plumes[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2014,70:578-585. |
| APA | Zhou, ZH.,Wei, Y.,Li, HH.,Yuen, R.,Jian, W.,...&Yao W.(2014).Experimental analysis of low air pressure influences on fire plumes.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,70,578-585. |
| MLA | Zhou, ZH,et al."Experimental analysis of low air pressure influences on fire plumes".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 70(2014):578-585. |
入库方式： OAI收割
来源：力学研究所
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