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时间:2019-06-28
《Experimental study of woods under external heat flux by autoignition 英文文献资料》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、JThermAnalCalorimDOI10.1007/s10973-012-2489-xExperimentalstudyofwoodsunderexternalheatfluxbyautoignitionIgnitiontimeandmasslossrateLongShi•MichaelYitLinChewReceived:7March2012/Accepted:8May2012ÓAkade´miaiKiado´,Budapest,Hungary2012AbstractPilotedignitionofwoodshasbeencommonlyignition)wherecertai
2、ncombustiblematerialscanbeignitedinvestigated,whichisacceleratedbyasparkplug.Au-asaresultofinternalheatingwhicharisesspontaneouslyiftoignitionisacomplexphenomenonthatcombustiblethereisanexothermicprocessliberatingheatfasterthanitcanmaterialsareignitedbyinternalheating,withoutthesparkbelosttothe
3、surrounding.Mostofpreviousstudiesfocusedonplug.Comparedwithpilotedignition,processofautoig-thekindledignition.nitionisclosertothedevelopmentofrealfire.VeryfewAlthoughkindledignitionisverycommon,itisnotstudieshavefocusedonthepredictionofignitiontimeandinstrumentedtoaccountforfloweffects,in-depthra
4、diationaveragemasslossratebyautoignition.Therefore,ignitioneffectsandambiguitiesresultingfromtheemissionspectraltimeandmasslossrateonsixspeciesofcommonlyusedcharacteristicsofmaterialandheatfluxsource[2].Pre-woodsamples,namelypine,beech,cherry,oak,maple,anddictionmodelsdevelopedpreviouslyareusedt
5、opredictash,werestudiedunderexternalheatfluxbyautoignitionignitiontimeoraveragemasslossrateofwoodsbypilotedinaconecalorimeter.Threemasslossstagesofwoodsignition.underexternalheatfluxwasobserved.EmpiricalmodelsofComparedwithpilotedignition,processofautoignitionignitiontimeandaveragemasslossratefor
6、woodsunderisclosertothedevelopmentofrealfire.Butveryfewexternalheatfluxweredeveloped.Theseempiricalmodelsstudieshavefocusedonthepredictionofignitiontimeandcanbeusednotonlyforfireriskevaluation,butalsoforaveragemasslossratebyautoignition.Noempiricalmodelinginputandvalidation.modelhasbeenfoundaboutt
7、hepredictionofignitiontimeandaveragemasslossrateofwoodsbyautoignition.KeywordsAutoignitionIgnitiontimeIgnitionBlijderveenetal.[3]obtainedthattheautoignitiontemperatureMasslossrateConecalorimeterbehaviorisdeterminedbyacombinati
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