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Three coal mine ventilation studies using sulfur hexafluoride tracer gas
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  1. Investigation of purging and airlock contamination of mobile refuge alternatives
    Personal Author:
    Bauer, Eric R.; Matty, Timothy J.; Thimons, Edward D.;
    Corporate Authors:
    National Institute for Occupational Safety and Health
    Published Date:
    March 2014
    Series:
    DHHS publication ; no. (NIOSH) 2014-116
    Report of investigations (National Institute for Occupational Safety and Health) ; RI 9694
    Description:
    "The National Institute for Occupational Safety and Health (NIOSH) Office of Mine Safety and Health Research (OMSHR) has conducted research to evaluate the effectiveness of purging of mine refuge alternatives (RAs). Two questions were addressed exper...
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  2. Methane emissions and airflow patterns on a longwall face: Potential influences from longwall gob permeability distributions on a bleederless longwall panel
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    Schatzel, S.J.; Krog, R.B.; Dougherty, H.;
    Published Date:
    2017
    Source:
    Trans Soc Min Metall Explor Inc. 342(1):51-61.
    Description:
    Longwall face ventilation is an important component of the overall coal mine ventilation system. Increased production rates due to higher-capacity mining equipment tend to also increase methane emission rates from the coal face, which must be diluted...
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  3. Face ventilation measurement with sulfur hexafluoride (SF₆)
    Personal Author:
    Vinson, Robert P.
    Corporate Authors:
    United States. Bureau of Mines.
    Published Date:
    1980
    Series:
    Report of investigations (United States. Bureau of Mines) ; 8473
    Description:
    "The face ventilation measurement method developed by the Bureau of Mines involves releasing a small volume of tracer gas (SF6) on the off-curtain side of the working face at the start of the mining cycle. At the same time, gas bottle samples are tak...
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  4. The effects of water spray placement for controlling respirable dust and face methane concentrations
    Personal Author:
    Goodman, G. V. R.; Beck, T.W.; Pollock, D.E.;
    Published Date:
    1/1/2007
    Description:
    A series of laboratory evaluations examined the impact of water spray pressure, curtain setback distance, and external and underboom spray use for controlling respirable dust levels and sulfur hexafluoride tracer gas concentrations around a continuou...
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  5. Exhaust ventilation of deep cuts using a continuous-mining machine
    Personal Author:
    Volkwein, J. C. (Jon C.)
    Corporate Authors:
    United States. Bureau of Mines.
    Published Date:
    1985
    Series:
    Report of investigations (United States. Bureau of Mines) ; 8892
    Description:
    "The Bureau of Mines, Foster-Miller, Inc., and Beaver Creek Coal Company have evaluated the ability of a new system to ventilate a 40-ft-deep cut. A remote-control continuous-mining machine, in a 7-ft-thick seam, with exhausting brattice was fitted w...
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