空調(diào)器微細(xì)通道蒸發(fā)器傳熱特性研究.pdf

1、北京建筑工程學(xué)院碩士學(xué)位論文空調(diào)器微細(xì)通道蒸發(fā)器傳熱特性研究姓名：蘇建民申請學(xué)位級別：碩士專業(yè)：供熱、供燃?xì)?、通風(fēng)及空調(diào)工程指導(dǎo)教師：王隨林20071201Abstractwiththedevelopmentofhiglltechnologies，themicroscaleheattransferisextendingtheapplicationstotraditionalindustriesIntherefrigerationanda

2、irconditioningengineering，theheattransferoftheexchangersCallbeenhancedbyusingmicrochannelsThispaperfocusesonthemicro／minichannelevaporators，investigatedtheairsideconvectionheattransfercharacteristics，channelshapes，sizeop

3、timizationofthechannels，andthecondensationcharacteristicsonthefinsurfaceTheairflowandconvectiveheattransferinmicrochannelevaporatorswassimulatedwithCFDsoftwareTheresultsshowtheflowandtemperaturedistributions，airsideheatt

4、ransfercoefficientandpressuredifferencedependingonthevariableReynoldnumberBasedontheanalysisontheflowandheattransferinrectangularmicrochatmeitheoptimalgeometricshapeandsizewasanalyzedfortherectangularmicrochannelsThecond

5、ensationheattransferofwetairontheverticalsurfacewastheoreticallyinvestigated，WiththeresultsshowsthattheairhquidinterfaceboundaryconditionsinsimulationcouldbesimplifiednIepaperalsowovidedsomemeasurementresultsforinterfaci

6、alcharacteristicsofwaterfilmandthealuminiumsurface，andcoatinghydrophilicfilmaluminiumsurfacerespectivelywithPhoenix300，andtheinfluenceofrotIghhessonthecontactangleandthecondensatefilmwasdiscussedKeywords：microchannelevap