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How smoke hinders escape from coal mines.

Authors
Kissell-FN; Litton-CD
Source
Min Eng 1992 Jan; 44(1):79-83
NIOSHTIC No.
10011200
Abstract
This U.S. Bureau of Mines study predicts the level of smoke that miners might meet while trying to escape a coal mine fire and describes how smoke would impede their safe escape. For this study, the authors assumed that miners exit through an escapeway adjacent to the burning entry and that some air would leak from the burning entry to the escapeway. The following conclusions were made: (1) a very low amount of air leakage to the escapeway can produce a critical level of visual obscurity from smoke, showing that intake airways may be as susceptible to smoke visibility problems as return airways, (2) this critical level of smoke obscurity is reached much before a critical level of carbon monoxide is reached, and (3) small fires can cause a severe sensory irritation that further limits vision; thus, reliable eye protection is very important. These results show that methods to guide miners through dense smoke will contribute greatly to saving lives during mine fires.
CODEN
MIENAB
Publication Date
19920101
Document Type
OP; Journal Article
Fiscal Year
1992
NTIS Accession No.
NTIS Price
Identifying No.
OP 14-92
Issue of Publication
1
ISSN
0026-5187
NIOSH Division
PRC
Source Name
Mining Engineering
State
PA
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