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The Effectiveness of Overpressure Ventilation: A Mathematical Study.

Authors
Bates-RC; Edwards-JC
Source
Chap in "Radiation Hazards in Min : Con Meas and Med Asp " SME/AIME 1981 :149-154
Link
NIOSHTIC No.
10002417
Abstract
Results are given of a mathematical study by Bureau of Mines personnel of overpressurization ventilation effects in underground uranium mines. The mathematics and computer codes make it possible to analyze many facets of transient and steady-state radon diffusion with darcy flow. Rapid changes in radon flux occur after imposing a pressure differential across the model. Flux into the model mine drops to near zero and then increases to the steady-state level, while the sink flux increases rapidly and then drops slightly to the steady-state level. Magnitudes of mine flux decreases and sink flux increases are dependent upon the distance from the mine to sink, permeability, and amount of overpressure. Current work on more complex models is also described.
Publication Date
19810101
Document Type
OP;
Fiscal Year
1981
NTIS Accession No.
NTIS Price
Identifying No.
OP 35-82
NIOSH Division
PRC;
Source Name
Chap. in "Radiation Hazards in Min.: Con., Meas., and Med. Asp.", SME/AIME, 1981, PP. 149-154
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