Back to Search
Start Over
Experimental study on methane explosion characteristics with different types of porous media
- Source :
- Journal of Loss Prevention in the Process Industries. 69:104370
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- Porous media has a significant effect on flame and overpressure of methane explosion. In this paper, the pore diameter and thickness of porous media are studied. Nine experimental combinations of different pore diameter and thickness on the propagation of flame and overpressure of methane explosion in a tube are analyzed. The results show that the porous media not only can suppress the explosive flame propagation, but the porous media with large pore diameter can cause deflagration and accelerate the transition of flame from laminar to turbulent. The pore diameter of the porous media mainly determines the quenching of the flame. Simply increasing the thickness of porous media may cause the flame to temporarily stop propagating, but the flame is not completely extinguished for larger pore diameter. However, the deflagration propagation speed of flame is affected by the thickness. The attenuation of overpressure by porous media is mainly reflected in reducing the duration of overpressure and the peak value of overpressure. The smaller the pore diameter, the greater the thickness, and the more remarkable the reduction in overpressure duration and peak value. Suitable pore diameter and thickness of porous media can effectively suppress flame propagation and reduce the maximum value and duration of overpressure.
- Subjects :
- Quenching
Materials science
Explosive material
Turbulence
General Chemical Engineering
05 social sciences
Energy Engineering and Power Technology
Laminar flow
02 engineering and technology
Management Science and Operations Research
Industrial and Manufacturing Engineering
Methane
Overpressure
chemistry.chemical_compound
020401 chemical engineering
chemistry
Control and Systems Engineering
0502 economics and business
Deflagration
050207 economics
0204 chemical engineering
Composite material
Safety, Risk, Reliability and Quality
Porous medium
Food Science
Subjects
Details
- ISSN :
- 09504230
- Volume :
- 69
- Database :
- OpenAIRE
- Journal :
- Journal of Loss Prevention in the Process Industries
- Accession number :
- edsair.doi...........6d08ab13655f7f7588c156e67a346a5b