Impact of using auxiliary fans on coal mine ventilation efficiency and cost /
by Keith G. Wallace, Jr. ... [et al.]
- [Washington] : United States. Dept. of the interior, Bureau of Mines, 1990.
- 8 p. : ill.
- Report of investigations ; 9307 .
- Report of investigations (United States. 9307 .
90001512
Mine ventilation.
Air flow
Fans (Machinery)
Brattices (Mining)
90001512
Mine ventilation.
Air flow
Fans (Machinery)
Brattices (Mining)