Experimental investigation on heat loss and combustion in methane/oxygen micro-tube combustor
作者： Junwei Li , Beijing Zhong
DOI: 10.1016/J.APPLTHERMALENG.2007.06.001
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摘要: Abstract To understand working features of a micro-tube combustor, combustion CH 4 /O 2 was carried out in three types micro-tubes with the same outer diameter 3 mm. In tests, characteristics and heat loss were studied. It is shown that when equivalence ratio lower than unity, not completely oxidized great amount gas H CO produced, which lowered release. If little larger to water vapor, reaction released maximum heat. Meanwhile, tube wall largest. Heat stainless steel occupied 22% release at most. Since emissivity ceramic tube, radiative very large most 70% total loss. Additionally, because thermal conductivity less steel, temperature gradient along axis disadvantageous transfer flame stabilization.
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