Large-scale Experimental System for Multiphase Fuel/Air Explosions  

作　　者：刘庆明 宫广东 白春华 陈亚红 牛国涛 

机构地区：[1]State Key Lab of Explosion Science and Technology,Beijing Institute of Technology

出　　处：《Journal of Measurement Science and Instrumentation》2011年第2期195-200,共6页测试科学与仪器（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.10772032);the Foundation of State Key Lab of Explosion Science and Technology(No.ZDKT08-02-6,and YBKT09-1)

摘　　要：A large-scale experimental for multiphase combustion and explosion study was developed and manufactured. The explosion tank consists of a 2 m diameter, 3.5 m long tube and ellipsoidai dames on both ends. The volume of the experimental tank is 10 ma. Pressure histories of the explosion pressure can be measured at different locations in the tank. High pressure glass windows of 200～300 mm were used to have access to the visualization of the explosion process. The explosion process of methane/air mixture and methane/coal dust/air mixture initiated by a 40 J electric spark at the center of the tank was studied in the large^scale experimental system. Five pressure sonsars were arranged in the tank with different distances from the ignition point. Ton dust dispersion traits were equipped to eject dust into the tank. A high-speed camera system was used to visualize the flame propagation during the explosion process. The characteristics of the pressure wave and flame propagated in methane/air mixtures and methane/coal dust/air mixtures have been

关 键 词：a large-sale experimental system explosion COMBUSTION FLAME 

分 类 号：TD714.5[矿业工程—矿井通风与安全]