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- Scrubber induced airflow
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Results 121 - 130 of 130
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1/1/1973 - Reports of InvestigationsThe applicability of the "direct method" for determining the methane content of virgin coalbeds was tested. Preliminary results indicate that the direct method, when applied to exploration cores, can be successfully used to estimate coalbed gas content ...
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1/1/1972 - Reports of InvestigationsIn this report the importance of diffusion in controlling the emission of methane in mines is examined. An in situ diffusion parameter is defined and calculated for a hypothetical unfractured lump of coal in the Pittsburgh and Pocahontas No. 3 Coalbeds....
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3/1/1969 - Technical Progress ReportsAn experimental degasification program using a vertical borehole and vacuum pump to drain gas from the gob area of a longwall panel was successful at Bethlehem Mines Corporation, Cambria Division, No. 33 coal mine. Sixty-one million cubic feet of methan...
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1/1/1960 - NIOSH/USBM numbered publicationsThis bulletin is written to explain in layman language the basic laws and fundamentals of mine airflow and their application to the solution of common ventilating problems. The attempt is to reduce the complex and difficult ventilating formulas to simpl...
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12/8/2022 - PC softwareUse the Air Quantity Estimator to gauge the air quantity needed to dilute diesel particulate matter (DPM) in an underground large-opening mine. Now in 2.0!
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3/1/2006 - Technology NewsA combination of engineering, administrative, and ventilation controls will eventually be required in many large opening mines in the United States to meet the regulatory DPM concentration limits. The AQE is a tool for mine planners to use to estimate s...
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8/1/1995 - Unpublished documents and reportsMFIRE is a computer simulation program that performs normal ventilation network planning calculations, and dynamic transient state simulation of ventilation networks under a variety of conditions. This user manual describes the development of MFIRE, the...
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12/1/1994 - Contract reportsThis report is a summary of the work accomplished during the performance of the project titled "Specialized Fortran Computer Programming and Analysis Services to Upgrade Capability of MFIRE Program". This project investigated and corrected algorithm con...
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1/1/1935 - NIOSH/USBM numbered publicationsIn the belief that the quickest and cheapest method of obtaining effective ventilation of metal mines with regard to air conditions that promote efficiency, health, and safety is through more general application of the engineering factors involved rathe...
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1/1/1929 - NIOSH/USBM numbered publicationsVentilation has been a primary problem in coal mining since mines were first worked under sufficient cover to encounter inflammable or other noxious gases. This report describes testing done to determine how volumes of air be taken from the atmosphere
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Content source: National Institute for Occupational Safety and Health, Mining Program