2019/11/22 by Tamura, G. T.
#Air intérieur #Fire #Incendie #Indoor air #construction élevée #escalier #high rise buildings #pressurisation #pressurization #régulateur de fumée #smoke controls #stairs
paper · doi:10.4224/40001431
Stairshaft pressurization systems under various schedules of stair door operation, nonfire/fire conditions, and the fire floor vented with an exhaust fan were investigated in a 10-storey experimental fire tower. The four stairshaft pressurization systems that were tested had overpressure relief features of exit door relief, barometric damper relief, feedback control with fan bypass, and feedback control with variable-speed fan. Tests have indicated that with any one of the stair pressurization systems on and with mechanical venting of the fire floor, the stairshaft was kept smoke free with four stair doors open.