A Method for Evaluating the Application of Variable Frequency Drives with Coal Mine Ventilation Fans
The adjustable-pitch setting on an axial-flow fan is the most common method of controlling airflow for primary coal mine ventilation. With this method, the fan operates at a constant speed dictated by its motor design. The angles of the blades are adjusted to change the amount of airflow and pressur...
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| Format: | Others |
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Virginia Tech
2014
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| Online Access: | http://hdl.handle.net/10919/31908 http://scholar.lib.vt.edu/theses/available/etd-04252006-084002/ |