Research into air pressure losses during forced ventilation of an underground working blind end
E. A. Kolesnichenko, V. B. Artemiev, I. E. Kolesnichenko, E. I. Lyubomishchenko
The article presents the results of theoretical evaluation and experimental research with a physical model of forced ventilation of blind workings. It has been found that dynamic pressure losses occur in ventilation piping. A fan forms static (excess) pressure in the face space to force out the outgoing flow from the face beyond the boundaries of a blind working. While choosing a fan type it is important to take into account all air pressure losses from a face to the mouth of an underground working.
