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Calculating Fire-throttling of Mine Ventilation Airflow.
Litton-CD; Derosa-MI; Li-JS
MISSING :21 pages
Tests were conducted in an intermediate-scale fire tunnel and a large-scale fire gallery to determine the effects of fires on the ventilation flow. Results of these tests were applied to a full- scale mine fire conducted in the Bruceton Experimental Mine with very good agreement. The analysis predicts a limit fire size, dependent only upon the passageway dimensions, below which ventilation reductions are significant and independent of fire size. For larger fires a simplified theory, based upon the measurement of co2 concentrations, was found to be valid. Continuous monitoring of co2 can also provide significant information relative to the fire hazards that result.
IH; Report of Investigations;
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division