Research into Smoke Exhaust Ventilation in the Far North
In case of fires, the main threat to health and sometimes life is not an open fire and high temperatures, but combustion products. The content of carbon monoxide and harmful substances released during decomposition in the air primarily paralyzes the respiratory system. The only way to reduce the concentration of emitted combustion products is in these cases the smoke exhaust system. An urgent problem is that when designing smoke ventilation systems for multi-storey buildings in the Far North, one should take into account the extreme temperature difference between combustion products and outdoor air, as well as structural and planning solutions for buildings built on permafrost. Modern buildings have new purposes, new forms, and the calculation of their smoke protection systems raises many questions, answers to which are absent in regulatory documents. Therefore, for all complex architectural forms in order to increase safety in the event of a fire, the calculation of the smoke exhaust system using numerical simulation methods is especially expedient. Calculations of smoke exhaust systems were performed, and a simulation model was built to consider the processes, comparison, occurring during the operation of the smoke exhaust system in the surveyed rooms. In the course of the research, a methodology for the development of a simulation model of the smoke exhaust system was obtained.