کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
586908 878238 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental study on DDT for hydrogen–methane–air mixtures in tube with obstacles
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
Experimental study on DDT for hydrogen–methane–air mixtures in tube with obstacles
چکیده انگلیسی

An experimental study of flame propagation, acceleration and transition to detonation in stoichiometric hydrogen–methane–air mixtures in 6 m long tube filled with obstacles located at different configurations was performed. The initial conditions of the hydrogen–methane–air mixtures were 1 atm and 293 K. Four different cases of obstacle blockage ratio (BR) 0.7, 0.6, 0.5 and 0.4 and three cases of obstacle spacing were used. The wave propagation was monitored by piezoelectric pressure transducers PCB. Pressure transducers were located at different positions along the channel to collect data concerning DDT and detonation development. Tested mixtures were ignited by a weak electric spark at one end of the tube. Detonation cell sizes were measured using smoked foil technique and analyzed with Matlab image processing toolbox. As a result of the experiments the deflagration and detonation regimes and velocities of flame propagation in the obstructed tube were determined.


► We studied experimentally flame acceleration and DDT in stoichiometric hydrogen–methane–air mixtures in 6 m long tube with obstacles.
►  Detonation cell sizes and pressures were measured.
► Deflagration and detonation regimes and flame velocities were determined.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Loss Prevention in the Process Industries - Volume 26, Issue 2, March 2013, Pages 374–379
نویسندگان
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