Driving Forces for Smoke Movement and Management

The movement of smoke in buildings and tunnels is governed by a number of driving forces, including fire-induced buoyancy and expansion, stack effect, wind effect and mechanical ventilation. To manage smoke movement in buildings and tunnels, these driving forces need to be considered individually and collectively so that appropriate strategies and systems can be implemented to achieve desired smoke control objectives. This paper provides an overview of the driving forces for smoke movement in buildings and tunnels and for the current methods used to manage smoke movement in structures.