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- Research methods and measures:
- Airflow
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Results 21 - 30 of 40
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6/1/2006 - Conference papersNIOSH research suggest that by incorporating ventilation planning into the mine planning process, using propeller fans, developing new stopping materials and construction methods, and using long pillars to eliminate crosscuts where possible, the ventila...
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6/1/2006 - Conference papersTests were conducted in a full-scale ventilation gallery to determine the influence of mining machine-mounted water sprays on airflows and methane concentrations at the face when blowing ventilation systems are used. Test results using different spray a...
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5/1/2006 - Technology NewsThe EZ-Up curtain stopping is designed primarily for use as a temporary or portable stopping, although test results indicate that it may remain durable for an extended time. It can be constructed from a variety of fabrics, including standard mine bratti...
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5/1/2006 - Technology NewsThe Super Stopping is a permanent, long-term ventilation control for large-opening metal/nonmetal mines designed to last for the life of the mine. This report discusses construction of a Super Stopping, as well as successful testing of the stopping at 3...
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1/1/2006 - Peer reviewed journal articlesNIOSH conducted four diesel-fuel fire experiments with specific fire heat-release rates to determine the reversal of smoke products-of-combustion from a mine fire in a mine section with the airway connectivity of an electrical Wheatstone bridge.
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1/1/2006 - Peer reviewed journal articlesA test system was developed at NIOSH's ventilation test gallery to measure airflow using a three-axis ultrasonic anemometer. The gallery was used to simulate face airflow conditions in underground mines having a blowing curtain. Airflow data were used t...
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1/1/2006 - Peer reviewed journal articlesResults of diesel fuel fire experiments were conducted to determine the critical air velocity for preventing smoke rollback. Experimental results compared well with model predictions based on a computational fluid dynamics fire dynamics simulator.
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2/1/2005 - Conference papersDiesel fuel fire experiments were conducted to determine the critical air velocity for preventing smoke rollback. Experimental results compared very well with model predictions based upon a computational fluid dynamics (CFD) fire dynamics simulator.
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5/1/2004 - Conference papersDescribes the results of a case study where NIOSH demonstrates that significant increases in total mine airflow can be achieved and the ventilation improved in a large-opening stone mine by replacing an axial-vane mine fan with two 12-ft diameter propel...
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5/1/2004 - Conference papersProvides guidelines for more effective use of the ultrasonic anemometer.
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Content source: National Institute for Occupational Safety and Health, Mining Program