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Mining Publication: Fan Selection For Large-Opening Mines: Vane-Axial Or Propeller Fans - Which To Choose?

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June 2006

Image of publication Fan Selection For Large-Opening Mines: Vane-Axial Or Propeller Fans - Which To Choose?

NIOSH has investigated the unique ventilation requirements of large-opening mines to help identify and evaluate the effectiveness of various fan types to improve the ventilation and air quality in the underground workplace. Large-opening mines, with their low airflow resistance factors, can be ventilated with freestanding auxiliary fans because airflow patterns in these mines are mainly controlled by airflow momentum. The 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. Each fan type has its own airflow, entrainment and penetrating airflow characteristics, and operating costs that are advantageous for specific applications. Either fan type can be used for most auxiliary applications. However, this research has shown that the optimum placement and use criteria for propeller fans differ from those promulgated by the U.S. Bureau of Mines for vane-axial fans.

Authors: RB Krog, RH Grau

Conference PaperJune - 2006

  • Adobe Acrobat - Portable Document Format (.PDF)

    0.30 MB

NIOSHTIC2 Number: 20030336

Proceedings of the 11th U.S./North American Mine Ventilation Symposium, University Park, Pennsylvania, June 5-7, 2006. Mutmansky JM, Ramani RV. eds., London, U.K.: Taylor & Francis Group, 2006 Jun; :535-542

 
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