| 瓦斯浓度对瓦斯爆炸感应期内可见光特征影响的实验研究 |
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| 引用本文： | 李树刚,李孝斌,成连华,林海飞.瓦斯浓度对瓦斯爆炸感应期内可见光特征影响的实验研究[J].煤炭学报,2010,35(2):241-245. |
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| 作者姓名： | 李树刚 李孝斌 成连华 林海飞 |
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| 作者单位： | 西安科技大学能源学院;中国人民武装警察部队学院消防工程系; |
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| 基金项目： | 国家自然科学基金资助项目(505740720,50874089);;陕西省教育厅专项科研计划项目(06JK235) |
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| 摘 要： | 通过小尺度瓦斯爆炸实验管道系统模拟瓦斯爆炸，利用高速摄影机捕捉瓦斯爆炸早期可见光特征，以及Matlab分析实验数据，初步得出不同瓦斯浓度下爆炸感应期内可见光分布规律和光亮度最值特征参数，并详细分析了瓦斯浓度对特征参数的影响。结果表明：瓦斯爆炸感应期内光亮度最大值、光亮度平均值、光亮度变化率最值均随浓度的增大而增大。这主要是由于不同浓度瓦斯燃烧充分程度和放出能量不同，瓦斯燃烧越充分，发出的可见光亮度值越小；瓦斯燃烧放出的能量越大，发出的可见光亮度值越大。瓦斯浓度对爆炸感应期内燃烧光亮度阈值的影响不大；大致相等的燃烧光亮度阈值为判断瓦斯开始燃烧提供更为简单的判据。
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| 关 键 词： | 瓦斯浓度 瓦斯爆炸 爆炸感应期 可见光 光亮度 |
Experimental study on effect of gas concentration on characteristic of visible light emitted by gas explosion in induction period |
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| LI Shu-gang,LI Xiao-bin,CHENG Lian-hua,LIN Hai-fei.Experimental study on effect of gas concentration on characteristic of visible light emitted by gas explosion in induction period[J].Journal of China Coal Society,2010,35(2):241-245. |
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| Authors: | LI Shu-gang LI Xiao-bin CHENG Lian-hua LIN Hai-fei |
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| Affiliation: | 1. School of Energy Engineering/a>;Xi'an University of Science and Technology/a>;Xi'an 710054/a>;China/a>;2. Department of Fire Engineering/a>;The Chinese People's Armed Police Forces Academy/a>;Langfang 065000/a>;China |
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| Abstract: | The gas explosion experiment was made in the small scale laneway system. The characteristic of the visible light emitted by the gas explosion in the initial stages was shot by the fast camera. The data was analyzed by the software named Matlab. The distribution of the visible light emitted by the gas explosion in the induction period and the characteristic data of the maximum of the lightness of the visible light was educed. The effect of the concentration of gas to the characteristic data of the visible li... |
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| Keywords: | gas concentration gas explosion induction period of gas explosion visible light lightness |
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