Quenching methane-air ignitions with water sprays by M. J Sapko

Cover of: Quenching methane-air ignitions with water sprays | M. J Sapko

Published by Dept. of the Interior, Bureau of Mines in [Washington] .

Written in English

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  • Methane,
  • Mine fires -- Prevention and control,
  • Coal mines and mining -- Fires and fire prevention

Edition Notes

Includes bibliographical footnotes

Book details

Statementby M. J. Sapko, A. L. Furno, and J. M. Kuchta
SeriesReport of investigations - Bureau of Mines ; 8214
ContributionsFurno, A. L. jt. auth, Kuchta, J. M., jt. auth, United States. Bureau of Mines
The Physical Object
Pagination13 p. :
Number of Pages13
ID Numbers
Open LibraryOL14914768M

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Quenching methane-air ignitions with water sprays. [Washington]: U.S. Dept. of the Interior, Bureau of Mines, (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: Michael J Sapko; A L Furno; J M Kuchta; United States.

Bureau of Mines. Environment Canada, 2 books H. Lapp, 2 books Lee, Thomas H., 1 book Iosif Lʹvovich Ėttinger, 1 book United States. Congress. House. Committee on Science and Technology., 1 book D.

Hyman, 1 book Evgeniĭ Fedorovich Karpov, 1 book Leonid Matveevich Zorʹkin, 1 book Edward D. Thimons, 1 book Maurice Deul, 1 book Patrick L. McGeer, 1 book. The water barrier is located at different locations L from the left boundary with L between 4 and 8 m. It is characterised by monodispersed droplets of diameter D ranging from 20 to μm and the liquid volume fraction θ taking values between % and %.

The barrier covers the area to the right of the domain and its length is modified in order to determine the minimum width necessary Cited by: The Effect of ventilation on the water spray pattern of automatic sprinkler heads / ([Washington, the infrared radiance of methane-air ignitions and coal dust-air explosions / ([Washington, D.C.]: Quenching methane-air ignitions with water sprays / ([Washington, D.C.]: U.S.

Dept. of the Interior, Bureau of Mines. The minimum water mass concentration for quenching methane-air flames increased linearly with increasing droplet diameter (surface weighted mean) and decreased with increasing spray temperature.

J Sapko has written: 'Quenching methane-air ignitions with water sprays' -- subject(s): Fires and fire prevention, Coal mines and mining, Mine fires, Prevention and control, Methane Asked in. The studies of Morgan, summarized in Ref.

28, indicated a decrease in ignition lag for methane-air mixtures with an increase in pilot flame height, e.g. minimum contact time decreased from 7 to msec for an increase of pilot height from to 0* by: 4. in quenching explosion flame, water barriers are roughly equivalent to the stone-dust barriers.

litres of water per sq. m of roadway cross-section has the same effect as kg stone dust per sq. m on German shelves. Advantages of water over stone dust Quenching methane-air ignitions with water sprays book heat capacity (latent heat of water = cal/g) is about 5 times that of dust.

This banner text can have markup. web; books; video; audio; software; images; Toggle navigation. Fire Engineering and Emergency Planning [13]). This is a significant factor in the estimation of flame velocities and quenching diameters.

It should be noted, that the value of the flammability limits and the flame propagation velocity (fire spread velocity) depend on the relation between the characteristic time of the chemical reaction in.

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Water deluge is activated to control fire and cool equipment (not always optimal to quench flame if leak is present). Water curtains can be used to influence dispersion pattern or remove chemicals, they could also add heat in connection to cryogenic releases.

Water deluge is. This thesis focuses on the study of natural gas combustion under engine relevant conditions. The work begins with the development of a detailed chemical kinetic mechanism that represents the ignition characteristics of methane with various minor additives over a wider range of operating conditions than previously existing mechanisms.

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Suppression of Methane-Air Explosions With Water in the Form of Fine Mists. Combustion Phenomena 22 t = s FIGURE Reaction rate profiles for methane–air mixture with Φ = in 50 mm tube diameter (a) neglecting and (b) considering radiation heat transfer.

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