CFD modeling to study the effect of particle size on dispersion in 20l explosion chamber: An overview
IR@CIMFR: CSIR-Central Institute of Mining and Fuel Research, Dhanbad
View Archive Info| Field | Value | |
| Title |
CFD modeling to study the effect of particle size on dispersion in 20l explosion chamber: An overview
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| Creator |
Ray, Santosh Kumar
Mohalik, Niroj Kumar Khan, Asfar Mobin Mishra, Debashish Varma, Nikhil Kumar Pandey, Jai Krishna Singh, Pradeep Kumar |
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| Subject |
Mine Ventilation
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| Description |
Mine disasters occur predominantly due to methane or coal dust explosion or a combination of both. Among the top ten worst coal mine disasters in India, nine are due to coal dust explosion. The current paper describes a general overview of the parameters causing dispersion leading to coal dust explosion, and computational fluid dynamics (CFD) simulation study to observe the effects of particle size on dispersion in Indian coal mines. Turbulent kinetic energy (TKE) and velocity vector path of dust-air mixture and dust-free air were simulated to understand their effects on coal dust dispersion. The TKE contours and velocity vector paths for dust-free air were uniform and symmetrical due to resistance-free path available. The TKE contours and velocity vector paths for dust-air mixture shows the asymmetrical distribution of contours, due to entrainment of air with dust particles. Vortices were observed in velocity vector paths which gradually diminish on increment of time sequence. These vortices are dead centres where velocity and coal dust particles concentration are both zero.
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| Publisher |
Elsevier
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| Date |
2020-04
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| Type |
Article
PeerReviewed |
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| Relation |
https://doi.org/10.1016/j.ijmst.2020.04.005
http://cimfr.csircentral.net/2183/ |
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| Identifier |
Ray, Santosh Kumar and Mohalik, Niroj Kumar and Khan, Asfar Mobin and Mishra, Debashish and Varma, Nikhil Kumar and Pandey, Jai Krishna and Singh, Pradeep Kumar (2020) CFD modeling to study the effect of particle size on dispersion in 20l explosion chamber: An overview. Elsevier International Journal of Mining Science and Technology.
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