%0 Journal Article
%T 超低热值多孔介质燃烧器积木型内芯结构的试验研究
%A 康淑慧
%A 王恩宇
%A 赵春腾
%A 刘联胜
%A 苟
%A 湘
%A 吴晋湘
%J 河北工业大学学报
%D 2018
%R 10.14081/j.cnki.hgdxb.2018.03.014
%X 基于一种具有热量回流的超低热值燃气多孔介质燃烧器，通过进行多孔介质块的积木式排列，构建了 多种孔隙分布的多孔介质燃烧室结构. 完成了在理论当量比和一定燃烧强度时，超低热值燃气在不同多孔介质 积木型内芯结构中燃烧的温度变化和污染物排放测试. 研究结果表明：与截面孔隙密度不变的多孔介质内芯相 比，在孔隙密度沿流动方向逐渐降低的情况下，当外侧多孔介质孔隙密度比中心减小时，火焰温度和燃烧稳 定性均降低，CO排放量增大；当外侧孔隙密度比中心增大时，火焰温度和稳定性升高，CO排放量减少.</br>Thispaperintroducesaserialofporousmediacombustionchambersconstructedwithdifferentporedistribu? tionbybuilding-blockstructureofporousmediumblocks.Thecombustorwasdesignedfortheultra-lowcaloricgas (ULCG)basedonheatrecirculation.Attheoreticalequivalentratioandacertainfiringrate,thetemperaturechangeand thepollutantemissionsweremeasuredwhentheultra-lowcalorificvaluegascombustedinvariousbuilding-blockstruc? tureofporousmedia.Theresultsshowedthatbycomparingwiththeinnercoreofporousmediawithfixeddensityofpore′s cross-section,wefoundthatwhentheporedensitydecreasedalongtheflowdirection,andtheouterporedensityofpo? rousmediawassmallerthanthatofthecenter,theflametemperatureandcombustionreducedstably,andCOemissions increased;However,whentheouterporedensityofporousmediawaslargerthanthatofthecenter,theflametempera? tureandcombustionincreasedstablyandCOemissionsreduced.
%K 超低热值燃气
%K 多孔介质
%K 燃烧器
%K 积木型结构&lt
%K /br&gt
%K ultra-lowcaloricgas(ULCG)
%K porousmedia
%K combustor
%K building-blockstructure
%U http://zrxuebao.hebut.edu.cn//oa/darticle.aspx?type=view&id=201803014