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Mining Publication: Using Ultrasonic Anemometers to Evaluate Face Ventilation Conditions
Keywords: Airflow Anemometers Faces Methane Ventilation
This page is archived for historical purposes and is no longer being maintained or updated. Contact NIOSH Mining if you need an accessible version.
Original creation date: February 2007
Authors: EE Hall, CD Taylor, JE Chilton
Conference Paper - February 2007
Download PDF Document (0.33 MB)
NIOSHTIC2 Number: 20031823
2007 SME Annual Meeting and Exhibit, February 25-28, Denver Colorado, preprint 07-096. Littleton, CO: Society for Mining, Metallurgy, and Exploration, Inc., 2007 Feb; :1-5
The fact that methane ignitions continue to occur at the mining face indicates that monitoring with machine-mounted methanometers does not always indicate the presence of high methane concentrations. Methane concentrations at the face change quickly due to changes in airflow. By measuring these changes in airflow, it may be possible to predict changes in face methane levels more quickly. Currently there are no techniques or instruments to accurately measure airflow inby the mouth of the ventilation curtain or tubing. Tests conducted in the NIOSH ventilation test gallery compare the data provided by one-, two-, and three-axis ultrasonic anemometers. The effects of changes in airflow direction and turbulence on instrument readings are discussed, and guidelines are given for selecting the type of instruments to be used for monitoring airflow near the mining face.
Image of publication Using Ultrasonic Anemometers to Evaluate Face Ventilation ConditionsConference Paper - February 2007
Download PDF Document (0.33 MB)
NIOSHTIC2 Number: 20031823
2007 SME Annual Meeting and Exhibit, February 25-28, Denver Colorado, preprint 07-096. Littleton, CO: Society for Mining, Metallurgy, and Exploration, Inc., 2007 Feb; :1-5
See Also
Atmospheric Monitoring
Development and Application of Reservoir Models and Artificial Neural Networks for Optimizing Ventilation Air Requirements in Development Mining of Coal Seams
Effect of Water Sprays on Airflow Movement and Methane Dilution at the Working Face
Guidelines for the Control and Monitoring of Methane Gas on Continuous Mining Operations
Impact of Unbalanced Intake and Scrubber Flows on Face Methane Concentrations
Measurement of Airflow in a Simulated Underground Mine Environment Using an Ultrasonic Anemometer
Modeling and Prediction of Ventilation Methane Emissions of U.S. Longwall Mines Using Supervised Artificial Neural Networks
Simulation of Methane Flows in Noncoal Mines
Using Ultrasonic Anemometers to Evaluate Factors Affecting Face Ventilation Effectiveness
Ventilation of Longwall Faces
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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