Non－stationary Flow Energy Equation for Mine Air and Its Application in Resistance Measurement
Abstract：This paper provides the energy equation for non－ stationary mineairflow and analyzes transient characteristics of step pulse of periodical pressure in an airway when there is an air door or regulator. The head loss between stations sometimes generates a negative value due to pressure oscillation at stations induced by disturbances when an altimeter survey in conducted in the single－ base method. A correction formula of the head loss between two points in mine ventilation system is recommended.
Machine-generated Keywords：
Publication Date：2001-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 28-30 )