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《r134a在臥式螺旋管內(nèi)單相流動(dòng)和過(guò)冷流動(dòng)沸騰換熱特性研究》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、山東大學(xué)碩士學(xué)位論文3.5DataAcquisition????????????????????????..253.6OtherEquipment????????????????????????..263.6.1RefrigerantRecycling???????????????????263.6.2HalogenLeakDetector??????????????????..263.6.3VacuumPump???????????????????????263.6.4DCPowerSupply?????????????????????.273.
2、7HeatPreservationandSeals???????????????????.273.8Summarv????????????????????????????.28ChapterfourExperimentalDataReduction??????????????..294.1MassFlux???????????????????????????.294.2HeatingPower?????????????????????????..304.3HeatF1ux????????????????????????????304.4InnerW
3、allTemperatureofHelically—coiledTubes????????..314.5LocalHeatTransferCoe螄cients?????????????????314.6TheInverseCalculationFormulaofSaturatedTemperature????324.7UncertaintyAnalysis??????????????????????..32-4.8Summarv????????????????????????????.33ChapterfiVeTheHeatTransferChar
4、acteristicsofSingle-phaseflowandSubcooledFlowBOiling????????????????????????..345.1Single-phaseFlowHeatTransferCharacteristicsofR134ainHorizontalHelically·coiledTubes??????????????????355.1.1DistributionofWallTemperature?????????????..355.1.2TheEffectofHeatF1uxonHeatFlux??????
5、?????..375.1.3TheEffectofMassFluxonHeatFlux???????????.385.1.4TheEff.ectofinletsubc001edtemperatureonHeatFlux??..385.2Subc001edFlowBoilingHeatTransferCharacteristicsofR134ainHorizontalHelicallv.coiledTubes??????????????????405.2.1DistributionofWallTemperature?????????????..405
6、.2.2TheEffectofHeatFluxonHeatF1ux???????????..425.2.3TheEffectofMassFluxonHeatFlux???????????.435.2.4TheEffectofinletsubcooledtemperatureonHeatFlux??..445.3Summarv????????????????????????????.44V山東大學(xué)碩士學(xué)位論文ChaptersixConclusionsandtheFutureWOrk?????????????466.1SummarytoPresentR
7、esearch??????????????????.466.2InadequateandProspects????????????????????.47References??????????????????????????????..49Acknowledgements??????????????????????????.53PubIishedpaperformasterdegree??????????????????.54VI山東大學(xué)碩士學(xué)位論文F:曰tI■Ez螺旋管因具有傳熱效率高、結(jié)構(gòu)緊湊和污垢熱阻小等優(yōu)點(diǎn),在高效蒸汽發(fā)生器和冷卻器、核反應(yīng)
8、堆、石油化工、航天航空、微電子器件冷卻、先進(jìn)燃料電池系統(tǒng)冷卻以及制冷與低溫技術(shù)等領(lǐng)域得到了非常廣泛的應(yīng)用。臥式螺旋管內(nèi)過(guò)冷