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大小:1.40 MB
页数:7页
时间:2019-06-28
《Experimental study of carbon monoxide for woods under spontaneous ignition condition 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、Fuelxxx(2012)xxx–xxxContentslistsavailableatSciVerseScienceDirectFueljournalhomepage:www.elsevier.com/locate/fuelExperimentalstudyofcarbonmonoxideforwoodsunderspontaneousignitionconditionLongShi⇑,MichaelYitLinChewDepartmentofBuilding,NationalUniversityofSingapore,4ArchitectureDrive,Singapore11756
2、6,Singaporehighlights"WeinvestigatedCOreleaserateandCOyieldofwoodsamplesbyspontaneousignition."AmodelpredictedCOyieldofwoodunderheatfluxandmoisturecontentwasdeveloped."Woods’thicknessshowlittleeffecttothepeakCOreleaserate.2"DecreaseofpeakCOreleaserateisnotobviousasheatfluxishigherthan50kW/m."Moistu
3、rereducesCOreleaserateandpostponestimetopeakCOreleaserate.articleinfoabstractArticlehistory:Toxicgasesaresignificantinfireriskevaluation.PreviousstudieshavefocusedontheircharacteristicsbyReceived1November2011pilotedignition.SpontaneousignitionisacomplexphenomenonthatcombustiblematerialsareignitedRe
4、ceivedinrevisedform20May2012byinternalheating,withoutthesparkplug.Comparingwithpilotedignition,processofspontaneousAccepted12June2012ignitionismuchclosertothedevelopmentofrealfire.Therefore,carbonmonoxide(CO)ofsixspeciesAvailableonline23June2012ofwoodsamplesunderexternalheatfluxbyspontaneousignitio
5、ninaconecalorimeterwasinvestigated.ResultsshowedthatinfluenceofthicknesstopeakCOreleaseratecanbeignored,buttimetopeakisKeywords:postponedwithahigherthickness.PeakCOreleaseratedecreaseswithahigherexternalheatflux,Autoignition2butthedecreaseisnotobviouswhenheatfluxincreasesfrom50to75kW/m.Theflamealsoha
6、sinflu-WoodCarbonmonoxideencestotheCOreleaserate.AsharpdecreaseofCOreleaseratehappensshortlyafterignitionandasec-Moisturecontentondpeakisneartheendoftheexperiment.MoisturereducesCOreleaserateandpostponestimetopeakConecalorimeterCOreleaserate.AnempiricalmodelofCOyieldofwoodsamplesunderdifferentexte
7、rnalheatfluxandmoisturecontentbyspontaneousignitionwasdeveloped.Thisempiricalmodelcanbeusednotonlyforfireriskevaluation,butalsoformodelinginputandvalidation.Ó2012PublishedbyElsevierLtd.1.IntroductionthatCOyielddependsonm
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