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Mining Publication: Simulation of Methane Flows in Noncoal Mines


Original creation date: January 1984

Image of publication Simulation of Methane Flows in Noncoal Mines

The Bureau of Mines has successfully tested a method to simulate methane (CH4) flows from face areas through the returns of noncoal mines. This technique involves releasing a small quantity of tracer gas at a working area and sampling for that gas downstream in the return airways. By measuring the dilution of the tracer gas, the dilution of any volume of CH4 released at the face can be calculated. This information is useful in selecting locations for CH4 monitors and in deciding the necessity for permissible equipment in the returns.

Authors: AB Cecala, ED Thimons

Report of Investigations - January 1984

NIOSHTIC2 Number: 10003851

Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8880, 1984 Jan; :1-9