渐变型多孔介质中燃气燃烧特性试验研究  

COMBUSTION CHARACTERISTICS OF PREMIXED NATURAL GAS IN A GRADUAL-VARIED POROUS MEDIA

作　　者：王恩宇[1] 程乐鸣[1] 褚金华[1] 施正展[1] 骆仲泱 岑可法[1] 

机构地区：[1]浙江大学热能工程研究所能源清洁利用与环境教育部重点实验室

出　　处：《工程热物理学报》2005年第6期1037-1040,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.50176043)

摘　　要：试验研究预混燃气在渐变型多孔介质(GVPM)中的燃烧特性,包括在渐变型多孔介质中的温度场、火焰移动、CO和NOx生成、燃烧稳定性及多孔介质孔径结构对燃烧特性的影响规律。研究结果与几种均匀型多孔介质(HPM)中的燃烧特性进行比较,发现渐变型多孔介质中的燃烧有如下优点:均匀的温度分布、较低污染物排放、高燃烧速率、高稳定性、宽燃烧极限和较大的负荷调节范围。An experimental setup was built for a novel combustion technique. A serial of experiments were performed on combustion in gradual-varied porous media （GVPM）. Gas and solids temperature profiles in the porous media burners and the emission of CO and NOx were measured. The temperature distribution, flames stability, pollutants emission and the influence of the structure of the porous media on combustion were studied. The results show that the GVPM burner has many advantages than the homogeneous porous medium （HPM） burners, e.g. more uniform temperature profiles, lower CO and NOx emission, higher burning rate, better stability, larger range of combustion limits and higher power modulation.

关 键 词：预混燃烧 多孔介质 渐变型多孔介质 

分 类 号：TQ038.3[化学工程]