What has the Mining Program accomplished?
NIOSH researchers conducted an extensive review of available ventilation fans and their potential suitability for large-opening mines. It was determined that large-diameter propeller fans would be best suited for these mines. The researchers conducted a mine case study where two large-diameter propeller fans were selected, installed, and evaluated in an operating large-opening stone mine. The study demonstrated that propeller fans could effectively increase ventilation airflow quantities. Propeller fans are more efficient than axial vane fans in large-opening mine conditions. They create less noise, require less capital investment, and have lower operating costs compared to axial vane fans previously used in these mining operations.
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- What has the Mining Program accomplished?
