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Using ultrasonic anemometers to evaluate factors affecting face ventilation effectiveness.

Authors
Taylor-CD; Timko-RJ; Thimons-ED; Mal-T
Source
Trans Soc Min Metal Explor 2006 Jan; 320:127-132
NIOSHTIC No.
20032625
Abstract
A test system was developed for measuring airflow in the NIOSH Pittsburgh Research Laboratory's ventilation test gallery using a three-axis ultrasonic anemometer. The gallery was used to simulate face airflow conditions in underground mines having a blowing curtain. Airflow data collected at multiple sampling locations between the face and the end of the curtain were used to draw airflow profiles for different curtain setback distances, intake flow quantities, and entry widths. In addition, methane was released at the face, measured at the sampling locations, and displayed as methane distribution in the areas between the curtain and the face. Entry geometry had a significant effect on airflow patterns, and the flow patterns affected the distribution of methane in the entry. Flow measured at and parallel to the face was a good predictor of methane dilution and removal within 2 ft of the face.
Keywords
Ventilation; Underground-mining; Coal-mining; Methanes; Airflow; Anemometry; Mining-industry
Contact
NIOSH Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236
CODEN
TMENAE
CAS No.
74-82-8
Publication Date
20060101
Document Type
Journal Article
Editors
Yernberg-WR
Fiscal Year
2006
NTIS Accession No.
NTIS Price
ISBN No.
0873352556
ISSN
1075-8623
NIOSH Division
PRL
Priority Area
Research Tools and Approaches: Control Technology and Personal Protective Equipment
Source Name
Transactions of the Society for Mining, Metallurgy, and Exploration
State
PA
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