AERODYNAMIC POTENTIAL, BALANCES OF ENERGY AND USABLE POWER AND OPERATION STABILITY OF A MINE VENTILATION SYSTEM

摘要

Parameters of ventilating air excepted from amine ventilation survey arc presented. Aerodynamic potentialand other parameters referred to mass unit of dry air arccalculated. Potential drops and other parameters for airways andmeshes of the ventilation system are determined. Energy balanceand usable power balances with or without introduction ofcompressed air to the ventilation system arc elaborated.Ventilation system diagrams, characteristics of the fan station,main natural ventilating energy and losses of mechanic energyin the ventilation network arc given. For the ventilation system amodel with lumped parametrs is presented. Operation stabilityof the ventilation system in Lspunov's sense together withsystem's own responses to sudden throwing off from the state ofequilibrium is determined. Additional questions and conclusions arc given.