Explosion and detonation characteristics of dimethyl ether.
Explosion and detonation characteristics of dimethyl ether.
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DOI：
10.1016/j.jhazmat.2008.07.133
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发表时间：
2009-05
影响因子：
13.6
通讯作者：
T. Mogi;Sadashige Horiguchi
中科院分区：
文献类型：
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作者：
T. Mogi;Sadashige Horiguchi
对二甲醚的爆炸和爆轰特性进行了实验研究。爆炸容器使用内部容积为180 L的球形压力容器。因此，使用内径为25 mm和50 mm的长10 m的管作为爆震管。此外，我们比较了二甲醚和丙烷的特性，因为二甲醚被认为是液化石油气（LPG）的替代燃料。在室温和大气压下，最大爆炸压力增加了十倍。爆炸指数（KG值），爆炸强度的指标，大于丙烷，表明爆炸是激烈的。迄今为止，还没有对二甲醚的爆轰行为进行实验研究，但这项研究证实了向爆轰的转变。爆轰特性与Chapman-Jouguet爆轰特性相似，爆轰浓度范围为5.5%~ 9.0%。
In this study, the explosion and detonation characteristics of dimethyl ether (DME) were experimentally investigated. A spherical pressure vessel with an internal volume of 180L was used as the explosion vessel. Therefore, tubes 10m in length with internal diameters of 25mm and 50mm were used as detonation tubes. In addition, we compared the characteristics of DME with those of propane since DME is considered as a substitute fuel for liquid petroleum gas (LPG). At room temperature and atmospheric pressure, the maximum explosive pressure increased tenfold. The explosion index (KGvalues), an indicator of the intensity of an explosion, was larger than that of propane, indicating that the explosion was intense. No experimental study has been conducted on the detonation behavior of DME so far, but this research confirmed a transition to detonation. The detonation characteristics were similar to the characteristics of the Chapman–Jouguet detonation, and the concentration range for detonation was from 5.5% to 9.0%.