ASHRAE.Application51-1999 FIRE AND SMOKE MANAGEMENT

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1、CHAPTER51FIREANDSMOKEMANAGEMENTFireManagement....................................................................51.1Elevators...............................................................................51.12SmokeMovement.............................................

2、.......................51.2ZoneSmokeControl..............................................................51.12SmokeManagement................................................................51.4ComputerAnalysisforPressurizationSmokeControlSystemDesign..................

3、..............................51.6Systems..............................................................................51.12FireandSmokeDampers.......................................................51.9SmokeManagementinLargeSpaces....................................51

4、.13PressurizedStairwells.............................................................51.9AcceptanceTesting...............................................................51.17INbuildingfires,smokeoftenflowstolocationsremotefromthefire,threateninglifeanddamagingproperty

5、.Stairwellsandele-vatorsfrequentlyfillwithsmoke,therebyblockingorinhibitingevacuation.Smokecausesthemostdeathsinfires.Smokeisdefinedastheairbornesolidandliquidparticulatesandgasespro-ducedwhenamaterialundergoespyrolysisorcombustion,togetherwiththeairthatisentrainedoro

6、therwisemixedintothemass.Theideaofusingpressurizationtopreventsmokeinfiltrationofstairwellsbegantoattractattentioninthelate1960s.Thisconceptwasfollowedbytheideaofthepressuresandwich(i.e.,ventingorexhaustingthefirefloorandpressurizingthesurroundingfloors).Frequently,ab

7、uilding’sventilationsystemisusedforthispurpose.Smokecontrolsystemsusefanstopressurizeappropriateareastolimitsmokemovementinfiresituations.Smokemanagementsys-temsincludepressurizationandallothermethodsthatcanbeusedsinglyorincombinationtomodifysmokemovement.Thischapterd

8、iscussesfireprotectionandsmokecontrolsystemsinbuildingsastheyrelatetoheating,ventilating,andair-condition-ing(HVAC).Foramore