A CFD (computational fluid dynamics) study of the small-scale combustion characteristics of premixed natural gas - 文章详情页

作者：

Xu, K. (Xu, K..) | Liu, Z.-L. (Liu, Z.-L..) (学者：刘中良) | Kang, T.-F. (Kang, T.-F..) (学者：康天放) | Ma, C.-F. (Ma, C.-F..)

收录：

Scopus PKU CSCD

摘要：

A　CFD　(computational　fluid　dynamics)　two-dimensional　model　was　employed　to　study　the　combustion　of　premixed　natural　gas　in　a　small-scale　space　and　the　impact　of　wall　heat-conductivity　factor　and　outer　wall　heat　loss　on　the　combustion　characteristics.　The　results　of　the　study　indicate　that　the　wall　heat　conductivity　factor　and　the　outer-wall　heat　loss　have　a　direct　influence　on　the　ignition　and　stability　of　the　flame　and　the　formation　of　NOx.　As　for　the　premixed　natural　gas　there　exists　only　a　zone　of　very　small　flow　velocity,　which　can　maintain　combustion　in　a　channel.　Finally,　the　impact　of　axial　and　radial　temperature　gradient　on　a　combustor　was　analyzed　and,　an　optimum　thermodynamic　condition　under　simulated　circumstances　has　been　identified,　thereby　making　it　possible　to　achieve　the　aim　of　optimizing　a　small-sized　combustor.

关键词：

Combustion characteristics; Heat conduction; Natural gas; Small-scale combustion

作者机构：

[ 1 ] [Xu, K.]Key Laboratory of Heat Transfer Intensification and Energy Conservation, Institute of Environmental and Energy Engineering of the Beijing Polytechnic University, Beijing 100022, China
[ 2 ] [Liu, Z.-L.]Key Laboratory of Heat Transfer Intensification and Energy Conservation, Institute of Environmental and Energy Engineering of the Beijing Polytechnic University, Beijing 100022, China
[ 3 ] [Kang, T.-F.]Key Laboratory of Heat Transfer Intensification and Energy Conservation, Institute of Environmental and Energy Engineering of the Beijing Polytechnic University, Beijing 100022, China
[ 4 ] [Ma, C.-F.]Key Laboratory of Heat Transfer Intensification and Energy Conservation, Institute of Environmental and Energy Engineering of the Beijing Polytechnic University, Beijing 100022, China

通讯作者信息：

[Xu, K.]Key Laboratory of Heat Transfer Intensification and Energy Conservation, Institute of Environmental and Energy Engineering of the Beijing Polytechnic University, Beijing 100022, China

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