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- Products and materials:
- Methane
- Document types:
- Conference papers
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Results 11 - 20 of 33
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6/1/2009 - Conference papersThis paper aims to examine the effects of porosity and permeability changes of the coal seam on methane emissions in an underground continuous miner section.
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11/1/2008 - Conference papersThis work by NIOSH has modelled the impacts of borehole pattern and design and the effects of increasing face length on gob gas venthole performance.
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10/1/2008 - Conference papersThis study presents a numerical investigation of geological discontinues in the coalbed using reservoir simulations of the effects of partings and permeability facies and lithotype changes on the production performances of vertical and horizontal degasi...
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6/1/2008 - Conference papersThis study proposes a principle component analysis (PCA) and artificial neural network (ANN) approach to predict the ventilation methane emission rates of U.S. longwall mines and the optimum combination of degasification boreholes based on the given cha...
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2/1/2008 - Conference papersThis NIOSH study presents an approach for prediction of methane inflow rates using coalbed methane reservoir modeling which can be used to limit the methane concentrations occurring as a result of the influences of various coalbed and operational parame...
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9/1/2007 - Conference papersThis paper discusses methods for protecting U.S. underground coal mines from explosions of methane gas and coal dust, and presents new research, such as the Coal Dust Explosibility Meter, a handheld device to directly measure coal dust explosibility.
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2/1/2007 - Conference papersMethane can be a significant hazard in coal mine longwalling operations and extensive methane mitigation techniques are employed by coal mine operators. Reservoir modeling techniques are used to better understand the liberation and migration of methane ...
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2/1/2007 - Conference papersThe fact that methane ignitions continue to occur at the mining face indicates that monitoring with machine-mounted methanometers does not always indicate the presence of high methane concentrations. Methane concentrations at the face change quickly du...
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2/1/2007 - Conference papersThis paper presents experimental results for conveyor belt flame spread from tests conducted in a small-scale tunnel. The purpose of this study is to investigate the effects of certain factors, such as belt type, on the flame spread properties.
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6/1/2006 - Conference papersTests were conducted in a full-scale ventilation gallery to determine the influence of mining machine-mounted water sprays on airflows and methane concentrations at the face when blowing ventilation systems are used. Test results using different spray a...
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Content source: National Institute for Occupational Safety and Health, Mining Program