J. Phys. IV France
Volume 12, Numéro 7, August 2002
Page(s) 11 - 17

J. Phys. IV France
12 (2002) Pr7-11
DOI: 10.1051/jp4:20020262

Detonation propagation limits in homogeneous and heterogeneous systems

H. Matsui

Chemical Safety Research Group, National Institute of Industrial Safety, 1-4-6 Umezono, Kiyose-shi, Tokyo 204-0024, Japan

Detonation propagation limits of concentration, initial pressure and tube diameter in homogeneous fuel/air mixtures through the deflagration-to-detonation transition were experimentally figured out. The detonation quenching diameter of a narrow channel in fuel/oxygen mixtures was applied to determine the testing condition for detonation arrestors. The destruction techniques for chlorofluorocarbons by gaseous detonation or deflagration were developed. Propagation limit of decomposing detonation of acetylene and ozone was experimentally determined. The structure and propagation mechanism of the soot layer detonation were clarified. Propagation limits of the film detonation were experimentally investigated and the relationship among the limit of initial pressure, tube diameter, and oxygen concentration was evaluated. Initiation energy for solid(fuel)/liquid(oxygen/nitrogen) system was predicted.

© EDP Sciences 2002