Search U.S. government technical reports digitized or harvested by TRAIL.
Charts for determining the performance of centrifugal fans
Some observations on coal-mine fans and coal-mine ventilation
Some of the hazards of auxiliary fans in coal mines
Airflow changes in multiple-fan systems
Electronic monitoring of mine fans
Jet fan effectiveness as measured with SF₆ tracer gas
Effects of a fan shutdown on a radon concentration in a positive pressure ventilated mine
Impact of using auxiliary fans on coal mine ventilation efficiency and cost