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- Propeller fans
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6/1/2006 - Conference papersThe flow characteristics of both vane-axial and propeller fans were investigated and tested at four large-opening mines to assess the effects of fan location on recirculation and entrainment.
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5/1/2004 - Conference papersDescribes the results of a case study where NIOSH demonstrates that significant increases in total mine airflow can be achieved and the ventilation improved in a large-opening stone mine by replacing an axial-vane mine fan with two 12-ft diameter propel...
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12/1/2002 - Technology NewsThis Tech News reports on how the use of propeller fans can significantly improve the ventilation in large entry stone mines due to their efficiency at lower pressures and less required horsepower.
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Content source: National Institute for Occupational Safety and Health, Mining Program