%0 Journal Article %T JUSTIFICATION OF HYBRID VENTILATION SYSTEMS OPERATING BOUNDARIES %A Abramkina, D.V. %K hybrid ventilation, mixed-mode ventilation, natural ventilation, air exchange factor, thermal buoyancy, wind driven ventilation %J Bulletin of Belgorod State Technological University named after. V. G. Shukhov %D 2022 %N 7 %P 8 %I Belgorod State Technological University named after V.G. Shukhov