河南城建学院学报2025，Vol.34Issue(2)：72-79,8.DOI:10.14140/j.cnki.hncjxb.2025.02.010
氨/空气在多孔介质表面燃烧的实验研究
Experimental investigation of ammonia/air surface combustion at porous media burners
摘要
Abstract
In order to investigate the combustion and emission characteristics of ammonia/air at porous media burners composed of silicon carbide foam ceramics,the effects of ammonia flow,equivalence ratio and pore density of silicon carbide materials on flame structure,temperature distribution,flammability limit and NOx e-missions were studied.The results show that the change of equivalence ratio makes the surface combustion flame shape change significantly.When the equivalence ratio φ is 1.0,the flame burns in close contact with the surface of the silicon carbide porous medium.The pore density of porous media and the flow rate of ammonia gas affect the gas outlet velocity on the surface of porous media,which changes the flame combustion intensity and then affects the difference of flame temperature distribution.The lean and rich limit equivalence ratio of the surface flame is approximately 0.6 and 1.4,respectively.The flammability limit slightly broadens with the in-crease of silicon carbide pore density,and gradually decreases with the increase of ammonia flow rate.With the increase of equivalence ratio or silicon carbide pore density,NOx emission decreases significantly in lean con-ditions,and decreases slightly in rich conditions,achieving its minimum emission of about 10 ppm.关键词
氨燃料/多孔介质/表面燃烧/当量比/燃烧特性/NOx排放Key words
ammonia fuel/porous media/surface combustion/equivalence ratio/combustion characteristics/NOx emission分类
能源科技引用本文复制引用
李可可,梁吉轲,陈冕,孟旭,谢兴华,香开新,方世东..氨/空气在多孔介质表面燃烧的实验研究[J].河南城建学院学报,2025,34(2):72-79,8.基金项目
合肥综合性国家科学中心能源研究院(安徽省能源实验室)协同创新资助项目(GXXT-2022-026) （安徽省能源实验室）
