超細(xì)新材料凈化空氣污染物的特性及其在IAQ技術(shù)中的應(yīng)用研究.pdf

1、同濟(jì)大學(xué)博士學(xué)位論文超細(xì)新材料凈化空氣污染物的特性及其在IAQ技術(shù)中的應(yīng)用研究姓名：于慧俐申請學(xué)位級別：博士專業(yè)：熱能工程指導(dǎo)教師：茅清希黃斌香20040501同濟(jì)大學(xué)申請博士學(xué)位論文論文摘要AbstractDuetoitscapabilityofphotocatalyticoxidationoforganicpollutantsintheairnanometersemiconductorTi02hasgenerallybeenempl

2、oyedintheaircleaningdevicesofairconditioningsystem，aswell∞intheselfcleaningequipmentsRatherthansimplychangingthephaseandconcentrationofthecontaminants，theabsolutetoxicityoftheairstreamisreducedbyPCOMeantime，PCOisfeatured

3、byhighdegradationefficiencylongservicelife，steadyperformancelowmaintenancerequirementItisshownthattheseexcellentattributesofPCOmakeitastrongcandidateforindoorairquality(IAQ)applicationsRecentlyithaSbeengivenmoreattention

4、bytheengineers，manufacturesandcustomersathomeandaboardMoreovertheapplicationofTi02thinfilmfiltermediaintheaircleaninghaSbeenanewandpromisingresearchfieldHowever，becausethePCOmechanismandworkingperformanceofTi02thinfilmfi

5、ltermediaisstillunderresearch，especiallythereasonablemathematicalmodelhasnotbeenmade，therelationshipsbetweenthespecialtyofPCOandVOCsdcgredationefficiencyaredifficulttobemaSteredcomprehensivelyThereforetheeffectiveandecon

6、omicaluseandthedevelopmentinthepracticalconstructionsofTi02thinfilmfiltermediaarerestrainedTakingtheTi02thinfilmfilermedia西objective，theaimofthedissertationistofindouttheoverallcharacteristicsofphoteeatalyticoxidationofV

7、OCsonthebasisoftheanalyticalandexperimentalresearchAtthesametime，theanalyticaldirections∽providedtoenlargetheapplicationscopeofTi02thinfilmfiltermediadecreaserunningcost。Saveenergyprotectatmosphereenvironmentandimprovein

8、doorairqualityAccordingtothePCOmechanicsofsingleTie2particulate，diffusion，adsorptionandphotochemistryarefiguredouttobethecontrollingtheoriesofPCOBasedonresearchresultsobtainedintheexperimentsandthemodelofplaneplateaircle

9、aningdevicesusedintheairconditioningsystem，themathematicalmodelofthenon—steadyPCOisestablishedDegradationrateiscalculatedbyfinitedifferencemethodTheinfluencesonthedegradationrateofsomefactorsconcerningTi02thinfilmandthea

10、ircarryingVOCsisanalyzedusingthecalculationresultsIntheend，theanalyticalresultsareverifiedbytheexperimentalresearchTheanalyticalfoundationismadeforthefurtherdevelopmentofTi02thinfilmfiltermediausingtheresearchresultsMean

11、time，theparametersthatcanbeusedinthepracticalconditionsareobtainedInaddition，thefeasibleresearchOfitsusingintheairconditioningsystemisdoneKeywordsnanometersemiconductorTi02，Ti02thinfilmfiltermediaphotocatalyticoxidation(