高原環(huán)境下木材著火特性及油池火羽流特性研究.pdf

1、中國科學(xué)技術(shù)大學(xué)碩士學(xué)位論文高原環(huán)境下木材著火特性及油池火羽流特性研究姓名：任彬彬申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：安全技術(shù)及工程指導(dǎo)教師：李元洲20090501AbstractAbstractQinghai—Tibetareaislocatedinhighaltitudeareas，thespecialcombustiblehaveuniqueignitionandcombustioncharacteristicswhichweredecide

2、dofthelowpressureandlowoxygenenvironmentThesefirecharacteristicsofcombustibleinplateauareahavenotbeenrecognitedyetExperimentaldatesoftypecombustiblearelackedBoththeexperimentalandtheoreticalinvestigationonignitionofwooda

3、ndpoolfirewerecarriedoutinthispapenMostofstudiesonignitionofthecombustibleandtheplumecenterlinetemperaturesofpoolfirewerefirstlypresentedinthispaper’includingignitionofwood，combustioncharacteristicsofthecombustibleandthe

4、poolfireinlowpressureandlowoxygenareaThispapertookPineasstudyobjectsAseriesofexperimentalwerecallriedout，focusingonignitiontime，ignitiontemperatureofsurface，masslossrate，compositionofgasproductionEffectofpressureandheatf

5、luxonignitionofwoodwereanalyzeddeeplyTheignitiontimeandsurfacetemperatureindifferentpressurewereinvestigatedexperimentallyBasedonexperimentalstudies，aignitionmodelwasproposedtodescdbetheprocessofignitionofwoodPressurewer

6、econsideredinthemodelPoolfireexperimentswiththreedifferentpoolsizeswereconductedinLhasaandinHefeiTheplumecenterlinetemperaturesatdifferentpositionandthemasslossrateweremeasuredEffectsofpressureonthemasslossrateandtheplum

7、ecenterlinetemperaturewereinvestigatedThemeasurementwascomparedwiththecalculationofHeskastad’SplumemodelAttenuationexponentoftheplumecenterlinetemperaturesiscalculatedKeyword：plateauarea，ignitiontime，ignitiontemperatureo