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微型定容燃烧腔内丙烷/空气火焰传播特性
Flame Propagation Characteristics of Propane/Air Premixed in a Micro Constant Volume Chamber

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苏航 1   蒋利桥 2 *   曹海亮 1   刘秦飞 2   李言钦 1   赵黛青 2  
文摘 利用高速摄像的方法,在狭缝间距为2,mm的圆盘状微型定容燃烧装置中考察了常温常压、当量比φ为1.0~ 1.6静止丙烷/空气预混气中心点火后向外传播的火焰传播特性.结果表明:微型定容燃烧腔内形成的火焰面有光滑、褶皱和断裂3种形态;光滑火焰面的火焰传播速度低于常规尺度下的火焰传播速度;火焰传播速度随着当量比的增加先增大后减小;在点火能量影响范围外,火焰传播速度随半径增大而减小;随当量比的增加火焰锋面容易出现褶皱和断裂现象.
其他语种文摘 Flame propagation characterisitcs of outwardly propagating flames were experimentally studied in a 2 mm gap disc-like micro chamber filled with equivalence ratios at φ=1.0—1.6 quiescent propane/air mixture ignited in the centre at atmospheric pressure and temperature by a high speed camera. The smooth,wrinkled and crack flame shapes are observed. The propagation speed of smooth flame was slower in the micro chamber than that in conventional combustion bomb. With the increase of equivalence ratio,flame speed increased firstly and then decreased. Beyond the influence of spark ignition stage,flame speed decelerated with the increase of chamber radius. The wrinkled even crack flames was prone to occur with the increase of equivalence ratio.
来源 内燃机学报 ,2016,34(3):268-273 【核心库】
DOI 10.16236/j.cnki.nrjxb.201603036
关键词 微尺度燃烧 ; 定容燃烧 ; 火焰传播 ; 火焰褶皱
地址

1. 郑州大学化工与能源学院, 河南, 郑州, 450001  

2. 中国科学院广州能源研究所, 广东, 广州, 510640

语种 中文
文献类型 研究性论文
ISSN 1000-0909
学科 能源与动力工程
基金 国家973计划 ;  国家自然科学基金资助项目
文献收藏号 CSCD:5730859

参考文献 共 22 共2页

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引证文献 5

1 苏航 微小空间内丙烷/空气火焰传播特性与加氢爆燃实验 爆炸与冲击,2018,38(2):381-389
被引 3

2 倪文婧 球形罐中丙烷—空气混合气火焰传播特性分析 工程爆破,2019,25(4):16-19,38
被引 1

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