If all the unsafe practices are considered at the same time (open fire door, obstructed egress route, and reduced number of exits), about 6% (334 out of a total of 5381) of the occupants fail to evacuate safely. It is observed that when there is no compartmentation in place near the stairway (resembling open fire doors), different areas of the building become untenable very quickly. The effects of these practices are examined separately and in different combinations to obtain a comprehensive understanding of their effect on the occupant safety. The smoke propagation and evacuation scenarios are selected to resemble some of the typical and often overlooked unsafe practices, such as open fire-doors, obstacle in the egress routes, and reduced exit numbers, observed in the RMG sector in Bangladesh.

The geometric and architectural features, occupant density, and other features of the factory are selected to represent those of a standard RMG building in Bangladesh. A coupled CFD modelling for fire growth and evacuation modelling is conducted to evaluate the fire safety performance of a multistoried ready-made garments (RMG) building.

Draw cylinder in pyrosim