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- Hazard prevention and control:
- Ventilation
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- Dilution ventilation
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- Push pull ventilation
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- Fan ventilation
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- Blowing ventilation
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- Ventilation control
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- Diffusion
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- Auxiliary ventilation
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- Exhaust ventilation
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- Recirculating ventilation
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- Scrubber induced airflow
- Document types:
- Reports of Investigations
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Results 1 - 10 of 12
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5/1/2012 - Reports of InvestigationsA new test method has been developed by the National Institute for Occupational Safety and Health (NIOSH) and Clean Air Filter (CAF) for quantifying the outside air leakage into environmental cab filtration systems.
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11/1/2008 - Reports of InvestigationsA joint MSHA and NIOSH study simulated actual coal mine explosion accidents to evaluate blast effects on typical U.S. mine ventilation stoppings, and presents construction and testing methods, explosion test data, and post-explosion conditions.
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1/1/2008 - Reports of InvestigationsThis report discusses the testing and full-scale evaluations of a recently developed carbon fiber-reinforced polymer (CFRP) reinforcement technique for upgrading existing mine ventilation seals to withstand an explosion pressure of 50 psi or greater whi...
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1/1/1992 - Reports of InvestigationsDust surveys were conducted to determine factors affecting belt entry dust levels and how using belt air to ventilate work areas affected dust exposures.
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1/1/1992 - Reports of InvestigationsThis report investigates that application of jet fans to ventilate cuts that extend beyond 40 feet. The results of tests involving a jet fan in a 90 foot entry, its benefits and potential problems are discussed.
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1/1/1992 - Reports of InvestigationsFour coreholes were drilled at a longwall mine in the Lower Kittanning coalbed to obtain coal and rock samples from overlying strata to determine their gas content during the mining cycle. Test results indicate that 91% of the gas came from coalbeds.
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12/1/1982 - Reports of InvestigationsSulfur hexafluoride (SF6) is an odorless, colorless, nontoxic gas that has found acceptance as a tracer gas in research on ventilation patterns, measurement of air leak rates, respirable dust reductions due to bagging hood modifications, and the study o...
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1/1/1980 - Reports of InvestigationsThe 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.
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1/1/1974 - Reports of InvestigationsThe Bureau of Mines has successfully used sulfur hexafluoride (SF6) as a tracer gas to measure mine air flows under conditions where conventional methods have failed. SF6 was employed experimentally to measure accurately recirculation of return into int...
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1/1/1974 - Reports of InvestigationsThe Bureau of Mines found sulfur hexafluoride (SF6), released from a lecture bottle, to be an ideal gaseous tracer for studying mine ventilation systems. In a Pennsylvania limestone mine, this technique was useful in evaluating the effectiveness of auxi...
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Content source: National Institute for Occupational Safety and Health, Mining Program