通風條件下航空煤油池火燃燒特性的研究.pdf

1、中國科學技術大學碩士學位論文通風條件下航空煤油池火燃燒特性的研究姓名：童琳申請學位級別：碩士專業：安全技術及工程指導教師：張瑞芳謝啟源20100501AbstractABSTRACTFuelisinflammableandexplosiveFuelspilloftenoccursduringthepetroleum，chemicalindustryproductionandtransportprocessesWhenfuelspills

2、，itoftenincursseriousfiresandevendisastersWidelyusedinthefieldofmilitary，chemicalandtransportation，aviationfueloftencausessignificanteconomiclossesandcasualties，becauseofitshazardscharacteristicssuchasfastburning，ferocio

3、usfireandhighradiantheatintensityAmongallkindsoffuelspilledfires，poolfiresunderwindyconditionsarethemostcommonSoit’SimportanttocarryoutresearchoncombustioncharacteristicsofaviationkerosenepoolfireunderwindyconditionExper

4、imentswerecarriedoutonselfmadeexperimentalequipment，whichwasbasedontheISO9705StandardRoomCombustioncharacteristicsofsquare，rectangularandcircularpoolfireswithdifferentsizeswerestudiedWindspeedrangesfrom0m‘s～to499m‘s～Thee

5、ffectofwindoncombustioncharacteristicssuchasHRRpeak，timeofHRRpeak，burningrateswasanalyzedTheresultsshowthat，underquiescentcondition，burningratesofsquarepoolfireincreaseswiththeincreaseofairflowspeedThedifferencebetweenex

6、perimentalburningratesandtheeStimatedvaluesdecreaseswiththeincreaseofpoolsidelengthsBesidestheburningratesofaviationfuelincreasewiththeincreaseofwindspeedTheexperimental氓m如Mclllvalueshavelinearrelationshipwithv／D，whichis

7、consistentwithpreviousresearchfindingsPlacefactorc‘wasdefinedtodescribetheimpactofairflowonrectangularpoolfires，whichhavethesameareaanddifferentaspectratiosandwaysofplacementTheresultsshowsthat，withtheincreaseofwindspeed

8、，thetimeofHRRpeakvaluesfirstincreasethendecreasewhena≥177，anddecreasewhen0‘≤1Whenadecreases，thevaluesofCOconcentrationpeakandproductionratehaveatendencytoincreaseThereisnoobviouseffectofwindonburningratesForcircularpoolf

9、ires，thecombustioncharacteristics，suchasHRRpeak，burningrate，extinctioncoefficientwasmeasuredTheeffectofwindspeedonHRRpeak，C02concentrationpeakandproductionrate，andtherelationbetweenextinctioncoefficientandHRRpeakwereanal