大空間內小室火災特性的研究.pdf

1、中國科學技術大學碩士學位論文大空間內小室火災特性的研究姓名：金旭輝申請學位級別：碩士專業(yè)：工程熱物理指導教師：霍然2001.5.1AbstractThe‘Cabin’FireSafetyDesignconcepthasbeenwidelyusedinlargespacebuildingssuchasterminalbuildingsofairportsnlekeypurposeof‘cabin’designistoprovidestri

2、ctfireprotectionintheareasofhighfireloadinlargespacesTosomeextent，the‘Cabin’FireSafetyDesignconceptmaybeveryusefulandsuitabletopreventfirefromspreadingbutoneimportantissueshouldbecarefullyconsidered，thatiSflashoverwilloc

3、curiftheinstalledfireprotectionfacilitiesincabinsaredestroyedduringfires，thenthefiresmokespillingoutfromcabinwillbegreatlydangeroustootherareasoflargespacesForthisreason，theresearchonthecharacteristicofcabinfiresinlarges

4、pacesiSperformedintermsofzonemodeltheoreticalanalysisandfull—scaleexperimentsBasedontheunderstandingofthesmokemovementinlargespacesfromcabinfires，somereasonablesuggestionsfor‘Cabin’FireSafetyDesignconceptareproposedInthi

5、sthesis，threeflashoverpredictionmodelsareevaluatedbyusingthesimulationresultsofCFASTmodelatfirstAuniformflashoverpredictionmodelforminimumfireenergyindifferentventconditionsisalsoestablished，whichcallprovidereliableinput

6、parameterforfutureanalysisofsmokemovementinlargespacesfromcabinfiresDuetothetwo—sectioncharacteristicofsmokeplumecausedbycabinfiresinlargespaces，allaxisymmetricstructureoftheplumeabovecabinisassumedTherefore，asimplecabin

7、plumemodelconsideringthisassumptionissetup，bymeansofvirtualfiresourcecorrelationforHeskestadandZukoskiplumemodelsFullSCalesmokefillingexperimentsinUSTC／PolyUAtfiumundercabinfiresareconductedSomevaluableexperimentaldataof

8、smokelayerdescendingprocessinAtriumhasbeenobtainedfordiffbrentcabinvent，fireSOllrCeenergyandflashoveroccurredincabinornotnleseexperimentaldataarenotonlyVerycriticaIfortheevaluationofformersimplecabinplumemodelandCFASTmod

9、elbutalsoCanbeusedforrefereneein‘Cabin’FireSafetyDesigninlargespacesFurthermore，smokefillingpmcessinlargespacebuildingsisnumericalsimulatedbyusingthesimplecabinplumemodelBaseonthesimulationwork，firesafetysituationinlarge