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	微细直管内甲烷/氧气燃烧的实验和数值模拟
	李军伟 ; 钟北京 ; LI Junwei ; ZHONG Beijing
	2010-06-07 ; 2010-06-07
关键词	微小燃烧室 燃烧 数值模拟 甲烷 氧气 micro-combustor combustion numerical simulation methane oxygen TK16
其他题名	Experimental and numerical study of methane-oxygen combustion in a microtube
中文摘要	为了解微小燃烧室的工作特点,建立了微细直管的实验系统,采用氧气和甲烷气体进行了2种混合比的燃烧实验,实时采集壁面的温度分布。同时考虑微细直管内的燃烧、流动,以及与外界的换热,采用三维数值模拟方法对该微细直管燃烧室进行了数值计算,数值模拟结果与实验结果比较一致。研究结果表明:微细直管的内径较小,充分燃烧需要很长的微细直管;微细直管与外界的换热量很大,占总燃烧放热的40%左右,其中辐射换热量最大,占总换热量的70%,燃烧室需要采用低发射率的材料来减小辐射散热损失。; Two mixture ratios of gaseous oxygen and methane were combusted in the micro-tube to study the micro-combustor characteristics.The wall temperatures of the micro-combustor were measured at various positions.A 3-D numerical simulation of the micro-tube combustion was also developed taking into account the combustion,flow and heat transfer in the micro-tube.The tests and numerical results showed that the small inner diameter of the micro-tube required a long tube to achieve complete combustion.The heat transfer between the micro-tube and the environment was very large,accounting for about 40% of the total combustion heat,the radiation heat loss was the largest,accounting for 70% of the total heat losses.Therefore,low emissivity materials are necessary to reduce the radiation heat loss from the micro-combustor wall.; 国家自然科学基金资助项目(50376027)
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/37548]
专题	清华大学
推荐引用方式 GB/T 7714	李军伟,钟北京,LI Junwei,等. 微细直管内甲烷/氧气燃烧的实验和数值模拟[J],2010, 2010.
APA	李军伟,钟北京,LI Junwei,&ZHONG Beijing.(2010).微细直管内甲烷/氧气燃烧的实验和数值模拟..
MLA	李军伟,et al."微细直管内甲烷/氧气燃烧的实验和数值模拟".(2010).

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