Experimental Study Of Flame Spread On Conveyor Belts In A Small-Scale Tunnel

Yuan, Liming; Litton, Charles D.

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CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners. As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.

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Experimental Study Of Flame Spread On Conveyor Belts In A Small-Scale Tunnel

2007
By Yuan, Liming ; Litton, Charles D.
Source: Fire and Materials 2007 -10th International Conference, January 29-31, 2007, San Francisco, California. London: Interscience Communications, 2007 Feb; :1-10

English

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Details:

Personal Author:

Yuan, Liming ; Litton, Charles D.

Yuan, Liming ; Litton, Charles D. Less -
Corporate Authors:

Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)
Conference Authors:

International Conference on Fire and Materials (10th : 2007 January 29-31 : San Francisco, CA)
Description:

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.
Subjects:

[+]

Mining
Source:

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

Book Chapter
Genre:

Conference Publications
Collection(s):

National Institute for Occupational Safety and Health
Main Document Checksum:

[+]

urn:sha-512:78b10ea7e654cec7093a16a6d7acd50d1e7d228e219ec7169d5903e595e2f7e010d8c20f1c6ab13fb6e8af665c74c07899fea5a7f6cfc85afe5bf6d479e7f306
Download URL:

https://stacks.cdc.gov/view/cdc/8755/cdc_8755_DS1.pdf
File Type:

[PDF-234.87 KB]