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Ventilation Eddy Zones At a Model Coal Mine Working Face.

Authors
Kissell-FN; Bielicki-RJ
Source
MISSING :14 pages
Link
NIOSHTIC No.
10000727
Abstract
Tracer gas decay curves were experimentally obtained in a fullscale model coal mine working face area. The concentration of tracer gas was found to decay in exponential fashion but with a change in slope. This change in slope is attributed to eddy zones in the face area. A simple theory was developed that allows one to calculate the approximate amount of gas in the eddy zones and thus estimate the size of the eddy zones.
Publication Date
19740101
Document Type
IH; Report of Investigations
Fiscal Year
1974
NTIS Accession No.
NTIS Price
Identifying No.
RI 7991
NIOSH Division
PRC;
Source Name
MISSING
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