Presents information that can be used for design analysis of atrium smoke management systems. Discusses various approaches to managing smoke in atria. Points out that often a layer of hot air forms beneath an atrium ceiling and can prevent some reaching the ceiling. Discusses a method for dealing with smoke detection in this situation. States commissioning is needed to ensure that smoke control systems will function as intended during a fire. Argues commissioning efforts should start before design and extend until maintenance system modifications after construction are finished. Concludes that research is needed concerning 1) the use of airflow for smoke control between the atrium and communicating spaces and 2) the depth of smoke layer required to prevent atrium exhaust from pulling air from the lower layer.

Units: Dual

KEYWORDS: year 1997, Atria, smoke, air flow, calculating, designing, smoke ventilation