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乙醚-铝粉-空气混合物燃烧转爆轰的实验研究

Keywords: 燃烧转爆轰,弱点火,乙醚,铝粉

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Abstract:

在长为32.4m、内径为0.199m的大型长直水平管道中对乙醚-空气混合物、乙醚-铝粉-空气混合物的燃烧转爆轰(DDT)过程进行了实验研究.对多相混合物弱点火条件下的DDT过程不同阶段的特征进行了分析,并对不同浓度时混合物的燃爆情况进行了比较.结果表明,质量浓度为295g/m3的乙醚-空气混合物与质量浓度分别为314,230g/m3的乙醚-铝粉-空气混合物在管道末端测点范围内均能够形成自持爆轰.

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