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Computer Modeling of the Effect of Mine-fire-induced Ventilation Disturbances on Stench Fire Warning System Performance.

Authors
Laage-LW; Pomroy-WH; Weber-T
Source
MISSING :12 pages
Link
NIOSHTIC No.
10005873
Abstract
Underground mine fires can significantly influence mine ventilation airstreams, in some cases throttling or even reversing airflows. As a result, the performance of a metal and nonmetal mine stench fire warning system, which depends on the ventilation to carry the vital warning signal, under fire conditions is different from performance under nonfire conditions. The safety of underground miners can be jeopardized if the warning signal is delayed. This Bureau of Mines report describes research to investigate fire and stench warning system interactions. A computer model is presented that permits quantitative analysis of stench warning signal delays as a function of fire location and intensity. The results of a case study involving computer simulations of stench distribution in a hypothetical mine network sibject to various fire exposures are also discussed. This case study illustrates a technique for identifying the areas within a mine that are subject to unacceptable warning signal delays, thereby enabling preemptive action by mine personnel, such as redeployment of stench injectors.
Publication Date
19870101
Document Type
IH; Information Circular;
Fiscal Year
1987
NTIS Accession No.
NTIS Price
Identifying No.
IC 9154
NIOSH Division
TCRC;
Source Name
MISSING
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