Experiments of piston effect on elevator smoke control

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Journal titleASHRAE Transactions
Pages22172228; # of pages: 12
Subjectelevator shafts; air pressure; smoke controls; elevator car movement; transient pressures; design aspects; pressurization air equations; Smoke management; cage d'ascenseur; pression d'air; regulateur de fumée
AbstractThe transient pressures produced when an elevator car moves in a shaft are a potential problem for elevator smoke- control systems. This piston effect can pull smoke into a normally pressurized elevator lobby. This paper presents the results of piston effect experiments under smoke-control conditions. The results of a theoretical analysis and those of the experiments are in good agreement. For most elevators the piston-effect problem can be overcome by designs that prevent smoke from being pulled into elevator lobbies, and equations for the amount of pressurization air needed to accomplish this are presented.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
NotePresented at the 1987 ASHRAE Annual Meeting, Nashville, TN, USA, June 27-July 1, 1987
Peer reviewedYes
NRC number29120
NPARC number20375869
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Record identifier3985f2c9-6c8c-43bd-9328-40f9b7a4edb3
Record created2012-07-23
Record modified2016-05-09
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