The Colt Extended Corridor System (corridor ventilation system) is a smoke and heat exhaust shaft ventilation system designed for means-of-escape corridors in residential buildings. This system offers developers substantial space and cost saving benefits, while providing a safe evacuation route. It is designed to complement the ColtShaft mechanical shaft system.
These videos compare the CFD results for two approaches as regards the Extended Corridor Pull system.
This clip shows a CFD model of a Building Regulations compliant dead-end corridor fitted with a conventional AOV. Smoke is shown blue and clear air is shown red. At the start of the video the door opens to allow people to escape and smoke pours out of the apartment and hangs around in the corridor. The video then jumps forward to when the fire brigade arrive to open the door again to fight the fire. The corridor fills with smoke. The corridor remains smoke logged for a long time after the door is re-closed.
This clip shows a CFD model of a non-compliant dead-end corridor provided with an Extended Corridor "Pull" system to compensate for extended travel distances. Smoke is shown blue and clear air is shown red. At the start of the video the door opens to allow people to escape and smoke pours out of the apartment but is quickly cleared. The video then jumps forward to when the fire brigade arrive to open the door again to fight the fire. The corridor fills with smoke but it then clears quickly when the door is re-closed. By comparison with the situation with a conventional AOV, the Colt Extended Corridor "Pull" system provides better conditions for escape and fire-fighting.
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