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Results 91 - 100 of 115
1/1/1997 - Conference papersTraditional techniques to experimentally determine toxic fumes produced by detonating high explosives are not applicable to blasting agents. To detonate properly, blasting agents require confinement, a significant booster, and other parameters.
1/1/1996 - Reports of InvestigationsPittsburgh Research Center conducted experiments with mine conveyor belt samples in a 20-L furnace and in a laboratory fire tunnel to measure and compare the major toxic gas concentrations evolved during the combustion of the materials.
1/1/1995 - Reports of InvestigationsThe U.S. Bureau of Mines has constructed a smoke chamber and developed sensitivity tests for smoke detectors. Evaluation of six smoke detectors showed their potential for use as mine fire sensors or as part of a mine atmospheric monitoring system.
1/1/1995 - Reports of InvestigationsThis U.S. Bureau of Mines study examined spontaneous heating episodes in coal mine pillars in an active underground coal mine. The objective of this study was to discover if the location of future events of pillar spontaneous heating could be inferred ...
1/1/1994 - Reports of InvestigationsProduction trends were analyzed for 82 gob gas ventholes on 7 longwall panels in the Lower Kittanning Coalbed, Pennsylvania.
1/1/1993 - Reports of InvestigationsCatalyzed diesel particulate filters (CDPFs) reduce the concentration of diesel particulate matter (DPM) and may reduce the emissions of carbon monoxide (CO) and hydrocarbons (HC) in diesel exhaust.
Smoke, Carbon Monoxide, and Hydrogen Chloride Production from the Pyrolysis of Conveyor Belting and Brattice Cloth1/1/1992 - Information CircularsAn investigation of the combustion products of typical materials found in underground mines. The results are combined with previous analyses to estimate relative toxicities, product levels and detectability of smoldering mine combustibles.
1/1/1992 - Reports of InvestigationsThe U.S. Bureau of Mines has developed an intrinsically safe carbon monoxide (CO) monitoring system for mines by coupling a fiber-optic data telemetry system with a prototype electrochemical CO monitor.
1/1/1990 - Information CircularsThe U.S. Bureau of Mines evaluated product-of-combustion characteristics of combustible materials used in coal mining in experiments conducted in an intermediate-scale fire tunnel, and evaluated each material's effectiveness for mine fire detection.
1/1/1988 - Reports of InvestigationsThe Bureau of Mines has developed a system using a high-speed electropneumatic mechanism for the rapid (grab) sampling of dusts and gases during an explosion to monitor pyrolysis-charring in coal particles and combustion of pyrolysis vapors.