Skip directly to local search Skip directly to A to Z list Skip directly to navigation Skip directly to site content Skip directly to page options
CDC Home
Share
Compartir

Mining Publication: Experimental Study of Flame Spread on Conveyor Belts in a Small-scale Tunnel

NOTE: This page is archived for historical purposes and is no longer being maintained or updated.

February 2007

Image of publication Experimental Study of Flame Spread on Conveyor Belts in a Small-scale Tunnel

This paper presents experimental results for conveyor belt flame spread from tests conducted in a small-scale tunnel. The purpose of this study is to investigate the effects of belt type, ventilation velocity, belt surface-to-roof distance and ignition source power on the flame spread properties. The tunnel used was 4.9 m long by 0.46 m square with the ventilation velocity ranging from 0.7 to 3.2 m/s. The ignition source was an impinged methane jet burner with heat output ranging from 7 to 21 kW. The belts tested included non-fire resistant rubber belts, fire-resistant rubber belts, fire-resistant neoprene belt and fire-resistant PVC belt with belt samples measuring 0.23 m wide by 2.5 m long. Experimental results show that with a ventilation velocity of 1.02 m/s all conveyor belts could be ignited, and that with sufficient ignition source power, flames spread the full length of the belt sample. The data showed a coupling effect of the ventilation air velocity and the belt surface-to-roof distance on the flame spread rate. For instance, flames could not spread with a ventilation velocity higher than 1.52 m/s and a surface-to-roof distance of 0.22 m. The use of the measured CO/CO2 ratio as an indicator of combustion stoichiometry is also discussed.

Authors: L Yuan, CD Litton

Conference PaperFebruary - 2007

  • Adobe Acrobat - Portable Document Format (.PDF)

    0.37 MB

NIOSHTIC2 Number: 20031658

Fires and Materials 2007 - 10th International Conference, January 29-31, 2007, San Francisco, California. London: Interscience Communications, 2007 Feb; :1-10

 
Contact Us:
  • Centers for Disease Control and Prevention
    1600 Clifton Rd
    Atlanta, GA 30333
  • 800-CDC-INFO
    (800-232-4636)
    TTY: (888) 232-6348
  • Contact CDC–INFO
USA.gov: The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Rd. Atlanta, GA 30333, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC–INFO
A-Z Index
  1. A
  2. B
  3. C
  4. D
  5. E
  6. F
  7. G
  8. H
  9. I
  10. J
  11. K
  12. L
  13. M
  14. N
  15. O
  16. P
  17. Q
  18. R
  19. S
  20. T
  21. U
  22. V
  23. W
  24. X
  25. Y
  26. Z
  27. #