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Fan selection for large-opening mines: vane-axial or propeller fans - which to choose?

Authors
Krog-RB; Grau-RH
Source
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
Link
NIOSHTIC No.
20030336
Abstract
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.
Keywords
Mining-industry; Underground-mining; Ventilation; Ventilation-equipment; Air-quality; Air-flow; Room-and-pillar-mining; Stone-mines; Nonmetal-mining
Contact
NIOSH Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236
Publication Date
20060605
Document Type
Conference/Symposia Proceedings
Editors
Mutmansky-JM; Ramani-RV
Fiscal Year
2006
NTIS Accession No.
NTIS Price
ISBN No.
0415401488
NIOSH Division
PRL
Source Name
Proceedings of the 11th U.S./North American Mine Ventilation Symposium, University Park, Pennsylvania, June 5-7, 2006
State
PA
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