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In mine evaluation of discriminating mine fire sensors.

Authors
Edwards-JC; Franks-RA; Friel-GF; Lazzara-CP; Opferman-JJ
Source
Mine Ventilation. Lisse, Netherlands: A. A. Balkema, 2002 Oct; :527-532
Link
NIOSHTIC No.
20023132
Abstract
A National Institute for Occupational Safety and Health's (NIOSH) mine fire detection research project was undertaken to evaluate multiple mine fire sensor types for nuisance alarm discrimination. The response of multiple fire sensor types to three small coal fire and three small conveyor belt fires in the presence of diesel emissions was evaluated in NIOSH's Pittsburgh Research Laboratory (PRL) Safety Research Coal Mine (SRCM). An array of fire sensors which included an optical and ionization smoke sensor, a chemical cell CO sensor, and Metal Oxide Semiconductor (MOS) sensors, was used to sample the diesel engine and fire source emissions. The mine fire detection experiments demonstrated the ability of a MOS sensor with a bimodal response to NOx and products-of-combustion (POC) to respond to the onset of smoldering combustion in the presence of CO and PC particulates from a diesel locomotive. As part of an in-mine evaluation in an operating coal mine, the MOS NOx responsive sensor and an ionization smoke sensor was demonstrated as a method to discriminate diesel emissions and cross-interference of H2 on a CO chemical cell , fire sensor at a battery charging station. The reinforcement of mine fire sensor information with the use of multiple sensor types, such as an MOS sensor and ionization and optical smoke sensors, is shown to be important for nuisance alarm discrimination and early mine fire detection.
Keywords
Mine-fires; Fire-hazards; Fire-prevention; Fire-protection; Diesel-engines; Smoke-control; Diesel-exhausts; Diesel-emissions; Mining-industry; Coal-mining; Underground-mining
Publication Date
20021001
Document Type
Book or book chapter; Conference/Symposia Proceedings
Editors
De Souza-E
Fiscal Year
2003
NTIS Accession No.
NTIS Price
ISBN No.
9058093875
NIOSH Division
PRL
Priority Area
Work Environment And Workforce: Emerging Technologies
Source Name
Mine Ventilation: Proceedings of the North American/Ninth US Mine Ventilation Symposium, Kingston, Ontario, Canada June 8-12 2002
State
PA
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