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IMECH-IR  > 等离子体与燃烧中心(2009-2011)  > 期刊论文
Title:
Numerical and Experimental Investigation On The Prevention of Co Deflagration
Author: Zhang Y(张宇); Yu LX(余立新); Wei XL(魏小林); Li T(李腾); Li B(李博)
Source: Journal of Loss Prevention in The Process Industries
Issued Date: 2009
Volume: 22, Issue:2, Pages:169-175
Abstract: The exhaust gases from industrial furnaces contain a huge amount of heat and chemical enthalpy. However, it is hard to recover this energy since exhaust gases invariably contain combustible components such as carbon monoxide (CC). If the CO is unexpectedly ignited during the heat recovery process, deflagration or even detonation could occur, with serious consequences such as complete destruction of the equipment. In order to safely utilize the heat energy contained in exhaust gas, danger of its explosion must be fully avoided. The mechanism of gas deflagration and its prevention must therefore be studied. In this paper, we describe a numerical and experimental investigation of the deflagration process in a semi-opened tube. The results show that, upon ignition, a low-pressure wave initially spreads within the tube and then deflagration begins. For the purpose of preventing deflagration, an appropriate amount of nitrogen was injected into the tube at a fixed position. Both simulation and experimental results have shown that the injection of inert gas can successfully interrupt the deflagration process. The peak value of the deflagration pressure can thereby be reduced by around 50%. (C) 2008 Elsevier Ltd. All rights reserved.
Keyword: Co ; Deflagration ; Preventing Deflagration ; Flame Acceleration ; Repeated Obstacles ; Turbulence
Language: 英语
Indexed Type: SCI
Corresponding Author: Zhang Y
Correspondent Email: zhangyu@imech.ac.cn
DOI: 10.1016/j.jlp.2008.11.010
DOC Type: Article
WOS Subject: Engineering, Chemical
WOS Subject Extended: Engineering
WOS Keyword Plus: FLAME ACCELERATION ; REPEATED OBSTACLES ; TURBULENCE
WOS ID: WOS:000264732800007
ISSN: 0950-4230
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/26562
Appears in Collections:等离子体与燃烧中心(2009-2011)_期刊论文

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Recommended Citation:
Zhang Y,Yu LX,Wei XL,et al. Numerical and Experimental Investigation On The Prevention of Co Deflagration[J]. Journal of Loss Prevention in The Process Industries,2009-01-01,22(2):169-175.
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