Effect of Ignition Location, Vent Size, and Obstacles on Vented Explosion Overpressures in Propane-Air Mixtures

被引：165

作者：

Bauwens, C. Regis ^{[1
]}

Chaffee, Jeff ^{[1
]}

Dorofeev, Sergey ^{[1
]}

机构：

[1] FM Global, Div Res, Norwood, MA 02062 USA

来源：

COMBUSTION SCIENCE AND TECHNOLOGY | 2010年 / 182卷 / 11-12期

关键词：

Explosions; Flame instabilities; Venting;

D O I：

10.1080/00102202.2010.497415

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The authors present results of vented explosion tests using stoichiometric propane-air mixtures in a room-size enclosure 63.7m3 in volume. The tests were focused on the effect of ignition location, vent size, and obstacles on explosion development and pressure buildup. The dependence of the maximum pressure generated on the experimental parameters was analyzed. It was found that the pressure maxima may be caused by pressure transients defined by the interplay of several factors, such as the maximum flame area and burning velocity in the chamber, and the overpressure generated by the external explosion. A simple model was proposed that allowed for the estimation of the maximum pressure for each of the main pressure transients. The model was found to agree with the experimental data within the experimental uncertainty.

引用

页码：1915 / 1932

页数：18

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