Applications and Impacts of a Real Fire in a Residential Building for Analysis the Level of Risk for Life

摘要

High temperature, smoke and fire gases are dangerous products of combustion that have critical influences on life safety, property protection, response of structure and fire suppression practices in buildings. In some fires, the quantity of smoke is so great that it may fill an entire building and obscure visibility at the street level to such an extent that it is difficult to identify the fire-involved building. An experimental campaign was performed to analyse smoke flows and time variation of the temperature due to a fire in a building, monitoring of smoke flow evolution and temperature trends on the walls during controlled fires with different ventilation conditions in office. The used instrumentation, positioned near place where has developed the fire, has allowed to pick up data on temperature on the walls, composition of the smokes; particularly, for the analysis of the smokes, it has been measured the concentrations of O_2, CO, CO_2, HC. The results of the experiments have allowed the detailed analysis of the characteristics of the smoke propagation in relationship to the degree of opening of doors and windows and the distribution of the temperature on the wall of building.