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Mining Publication: Evaluation of Smoke Detectors for Mining Use
Keywords: Carbon monoxide Measures Smoke sensors
Original creation date: January 1995
Authors: JC Edwards, GS Morrow
Report of Investigations - January 1995
Download PDF Document (0.23 MB)
NIOSHTIC2 Number: 20022494
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9586, 1995 Jan; :1-19
The U.S. Bureau of Mines has constructed a smoke chamber and developed sensitivity tests for smoke detectors. Response of ionization- and optical-type commercially available smoke detectors have been investigated. Six smoke detectors were measured with respect to visually obscuring smoke characterized by a corresponding optical density for smoldering and flaming coal combustion in the smoke chamber. It was determined that for one type of ionization smoke detector the alarm time was nearly equivalent to that of an odor monitor's alarm for smoldering coal combustion experiments and earlier for flaming coal combustion experiments. The experiments showed that an average carbon monoxide concentration of 5 ppm corresponded to an optical density of 0.022 m for smoldering and flaming coal combustion. Two of the commercially available ionization-type smoke detectors were more responsive to flaming than smoldering coal combustion at an optical density of 0.022 m , whereas the optical smoke detectors showed the opposite trend. The responsive characteristics of the detectors evaluated with respect to known smoke conditions in the smoke chamber shows their potential for use as mine fire sensors or part of a mine atmospheric monitoring system to improve mine safety.
Image of publication Evaluation of Smoke Detectors for Mining UseReport of Investigations - January 1995
Download PDF Document (0.23 MB)
NIOSHTIC2 Number: 20022494
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9586, 1995 Jan; :1-19
See Also
Coal Dust Explosibility Meter Evaluation and Recommendations for Application
A Comparison of Mine Fire Sensors
Factors Affecting ANFO Fumes Production
Monitoring and Removal of CO in Blasting Operations
Multiple Type Discriminating Mine Fire Sensors
Noise Source Identification on a Horizontal Vibrating Screen
Overlap Probability for Short-Period-Delay Detonators Used in Underground Coal Mining
Smoke, Carbon Monoxide, and Hydrogen Chloride Production from the Pyrolysis of Conveyor Belting and Brattice Cloth
Technology News 498 - Multiple Fire Sensors for Mine Fire Detection and Nuisance Discrimination
Using Persuasive Messages to Encourage Voluntary Hearing Protection Among Coal Miners
Page last reviewed: April 1, 2015
Page last updated: April 1, 2015
Content source: National Institute for Occupational Safety and Health, Mining Program
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