丙烷/氢气混合燃烧的火焰特征与辐射特性试验研究  

Flame structure and radiation characteristics of propane/hydrogen mixture fire

作　　者：马哲[1] 何其泽 杨昀 

机构地区：[1]上海市消防总队,上海200051 [2]公安部上海消防研究所,上海200032

出　　处：《消防科学与技术》2017年第9期1190-1193,共4页Fire Science and Technology

基　　金：上海市自然科学基金项目(15ZR1408100);上海市青年科技英才扬帆计划(17YF1402800)

摘　　要：针对丙烷和氢气混合气体燃烧的火焰特征与辐射特性开展试验研究。根据不同的混合比进行了10组试验,分析火焰高度、火焰中心线温度、火焰外部辐射通量、火焰内部辐射通量的变化。研究发现,随着混合气体中丙烷气体组分的比例不断下降,混合燃烧时的平均火焰高度逐渐下降。丙烷/氢气的混合比例大于50%时,火焰内部辐射通量随着总热释放速率的增大而显著下降;当丙烷/氢气的混合比例小于50%时,火焰内部辐射通量基本保持一致。Experimental study on the flame structure and radiation characteristics of propane/hydrogen mixture fire was carried out. The flame height, central flame temperature, outward flame radia- tion and inward flame radiation were analyzed by 10 sets of experiments with different mixing ratio. The results showed that the aver- age height of flame declined with the decline of proportion of pro- pane. The inward flame radiation deelined with the increase of total heat release rate when mixture ratio of propane/hydrogen was big- ger than 50%. The inward flame radiation hardly changed when the mixture ratio of propane/hydrogen was smaller than 50%.

关 键 词：混合气体 预混燃烧 火焰高度 火焰温度 火焰辐射 

分 类 号：X932[环境科学与工程—安全科学] TQ221.13[化学工程—有机化工]