![]() Findings of this study can be useful in assessing and enhancing safe evacuation of the occupants in RMG buildings of Bangladesh in the case of fire.įire in a seven-storied ready-made garments (RMG) factory building, based on the actual drawing of an existing RMG building, is simulated and the tenability of the occupants is analyzed. Moreover, if all the unsafe practices are considered at the same time (open fire door, obstructed egress route and reduced number of exits), about 141 occupants get trapped and fail to evacuate safely due to the reduced visibility through the smoke in the egress route. ![]() For the evacuation scenario with obstructions in the egress pathways and reduction in the number of available exits, an open fire door to the source of the fire increases the required evacuation time by 41% compared to when the fire door is closed. For the same fire growth scenario and fuel load, it is observed that when there is no fire barrier in place near the stairway (fully or partially open fire doors), different areas of the building become untenable very quickly. The simulated results are compared with the critical time for evacuation obtained from the fire modelling and also with the actual fire-drill data in hand for a number of such RMG buildings having similar geometry and size. The fire-smoke production and spread is simulated by using PyroSim, and the occupant evacuation is modelled using Pathfinder. Occupant evacuation from a seven-storied RMG building is simulated for these fire scenarios and the effects of smoke temperature, visibility, CO concentration, occupant behavioral features, obstructed/unobstructed evacuation routes, exit condition are analyzed in terms of the required safe evacuation time. Different fire growth and smoke propagation scenarios are considered keeping in mind the fire safety practice and perception prevailing in the RMG sector in Bangladesh. ![]() In the present study, fire safety analysis of a multistoried RMG building is performed by coupling results from Computational Fluid Dynamics (CFD) and evacuation modelling software.
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