Browse > Article

Prediction of Flame Propagation Velocity based on the Behavior of Dust Particles  

Han, OuSup (Chemical Hazard Research Team, Center for Chemical Safety and Health, Occupational Safety & Health Research Institute(KOSHA))
Han, InSoo (Chemical Hazard Research Team, Center for Chemical Safety and Health, Occupational Safety & Health Research Institute(KOSHA))
Choi, YiRac (Chemical Hazard Research Team, Center for Chemical Safety and Health, Occupational Safety & Health Research Institute(KOSHA))
Publication Information
Korean Chemical Engineering Research / v.47, no.6, 2009 , pp. 705-709 More about this Journal
Abstract
Based on experimental study of lycopodium dust particles' behavior, we suggest the flame propagation model through dust clouds. With dust concentration, flame velocity reaches a maximum value at $170g/m^3$ to exceed the stoichometric concentration for lycopodium-air mixture combustion and decreases slightly in the richer side of $500g/m^3$. At $47{\sim}200g/m^3$, mean velocity of particle increases in proportion to flame velocity. As the sum of burning rate and particle velocity is approximate in flame velocity, the flame propagation velocity with lycopodium dust concentration can be estimated by the calculation and it was found that behavior of particles is useful for better understanding of dust flame propagation velocity.
Keywords
Dust Explosion; Lycopodium; Flame Propagation Velocity;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Smoot, L. D., Horton, M. D., Goodson, F. P., Williams, G. A. and Hecker, W. C., Measurement and Predicting of Laminar Flame Propagation in Methane/Coal/Air Suppressant Systems, Paper 74-1112, AIAA 10th Propulsion Conference, San Diego, California(1974)
2 Han, O. S., Yashima, M., Matsuda, T., Matsui, H., Miyake, A. and Ogawa, T., "A Study of Flame Propagation Mechanisms in Lycopodium Dust Clouds Based on Dust Particles Behavior," J. of Loss Prev. in the Process Ind., 14(3), 153-160(2001)   DOI   ScienceOn
3 Hertzberg, M., Cashdollar, K. L. and Zlochower, I. A., Flammability limit measurements for dusts and gases, 21th International Symposium on combustion, The Combustion Institute, Pittsburg (1987)
4 Kobayashi, H., Ono, N., Okuyama, Y. and Niioka, T., Flame propagation Experiment of PMMA particle cloud in a microgravity environment, 25th Symposium(International) on Combustion, The Combustion Institute, Pittsburg, 1693-1699(1994)
5 Sun, J., Dobashi, R. and Hirano, T., Structure of flame propagation through metal particle clouds and behavior of particles, 27th International Symposium on combustion, The Combustion Institute, Pittsburg(1998)
6 Palmer, K. N., Dust explosion and fire, Chapman and Hall Ltd. (1983)
7 Eckhoff, R. K., Dust explosions in the process industries-3rd ed., Gulf professional publishing(2003)
8 Bhaduri, D. and Bandyopadhyay, S., Combustion in Coal Dust Flames, Combust. Flame, 17, 15-24(1971)   DOI   ScienceOn
9 Han, O. S., Yashima, M., Matsuda, T., Matsui, H., Miyake, A. and Ogawa, T., "Behavior of Flame Propagating Through Lycopodium Dust clouds in a Vertical Duct," J. Loss Prev. in the Process Ind., 13(6), 449-457(2000)   DOI   ScienceOn
10 Kaesche-Krischer, B., Untersuchungen an vorgemischten, laminar Staub/Luft-Flammen, Stab 19, 200-203(1959)
11 Horton, M. D., Goodson, F. P. and Smoot, L.D., Characteristics of Flat, Laminar Coal-Dust Flames, Combust. Flame, 28, 187-195(1977)   DOI   ScienceOn
12 Han, O. S., Flame propagation characteristics through suspended combustible particle in a full-scaled duct, Korean Chem. Eng. Res., 47(5), 572-579(2009)
13 Essenhigh, R. H., Combustion and Flame Propagation in Coal Systems : A Review, 16th Symposium(International) on Combustion, The Combustion Institute, Pittsburgh, 353-374(1976)