Analiza możliwości zastosowania mechanicznego nawiewu kompensacyjnego w systemach grawitacyjnego usuwania dymu z klatek schodowych

W artykule przedstawiono analizę możliwości zastosowania mechanicznego nawiewu powietrza w systemach oddymiania grawitacyjnego. Celem badania było porównanie metod oddymiania grawitacyjnego z nawiewem naturalnym i oddymiania grawitacyjnego z nawiewem mechanicznym. Na podstawie dokonanej analizy sformułowano wnioski z wykonanych badań.

In this article results of analysis of the possibility of using mechanical airflow in gravitational smoke removal systems were shown. The article was based on the report from research project nr KBN S/E – 422/8/11 accomplished in the Main School of Fire Service. The research consisted of the visibility analysis in a smoky staircase in two cases: • with natural airflow; • with specified mechanical airflow. Simultaneously with the researches, computer simulations were carried out using computer program FDS (Fire Dynamic Simulator). Conducted researches allow to state, that mechanical ventilation in gravitational smoke removal systems provides better conditions than natural ventilation in the staircase. It is also necessary to clarify the rules for determining the application of smoke removal systems.