BASIC PARAMETERS OF VENTILATION SUBSYSTEM IN THE LIGHT OF AERODYNAMIC POTENTIAL AND ASSUMPTIONS CONCERNING VENTILATION AIR

摘要

One started with the results of pressure survey carried out by barometric method in the ventilation subsystem of HALEMBA Coal Mine. In accordance with the assumptions concerning ventilation air, the paper presents four approaches to ventilation. They are based on the aerodynamic potential related to 1 kg of dry air, or 1 kg of ventilation air, or 1 kg of incompressible fluid of standard density. The mentioned above mass units are adequate to the assumptions concerning ventilation air - that are accepted according to the needs. The basic parameters of the considered ventilation subsystem obtained at the four mentioned above approaches have been compared. Additional questions and conclusions are presented.