Effect Of Water Sprays On Airflow Movement And Methane Dilution At The Working Face

Chilton, E.; Taylor, C. D.; Hall, E.; Timko, R. J.

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Effect Of Water Sprays On Airflow Movement And Methane Dilution At The Working Face

06/01/2006
By Chilton, E. ; Taylor, C. D. ; Hall, E. ; ...
Source: Proceedings of the 11th U.S./North American Mine Ventilation Symposium, University Park, Pennsylvania, June 5-7, 2006. Mutmansky JM, Ramani RV. eds., London, U.K.: Taylor & Francis Group, 2006 Jun; :401-406

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Chilton, E. ; Taylor, C. D. ; Hall, E. ; Timko, R. J.

Chilton, E. ; Taylor, C. D. ; Hall, E. ; Timko, R. J. Less -
Description:

The National Institute for Occupational Safety and Health (NIOSH) has been conducting re-search to determine the influence of mining machine mounted water sprays on airflows and methane concentrations at the face when blowing ventilation systems are used. Tests were conducted in a full-scale ventilation gallery. Airflow speeds and directions were measured at several locations near the face with ultrasonic anemometers. Methane was released from the face and concentrations were measured in the entry at locations above the mining machine using fixed point methanometers. Changes in airflow speed, direction, and methane concentrations were correlated with water spray operations. The test results using different spray arrangements and water pressures showed that operation of the machine-mounted sprayers can improve face ventilation effectiveness by increasing the velocity of airflow moving toward and away from the face. The improved ventilation resulted in reduced methane levels near the face.
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Mining
Source:

Proceedings of the 11th U.S./North American Mine Ventilation Symposium, University Park, Pennsylvania, June 5-7, 2006. Mutmansky JM, Ramani RV. eds., London, U.K.: Taylor & Francis Group, 2006 Jun; :401-406
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Book Chapter
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Conference Publications
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Stephen B. Thacker CDC Library collection
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urn:sha256:9eacd478f3cedb933a1de86791f328e6e5b5f4c98f210e46eedcfc391973ac4b
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https://stacks.cdc.gov/view/cdc/8748/cdc_8748_DS1.pdf
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Effect Of Water Sprays On Airflow Movement And Methane Dilution At The Working Face

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