用于電子器件冷卻的CPL系統(tǒng)強化換熱特性分析研究.pdf

1、l學校代碼：10425II蘭蘭!竺竺竺I中國石油大學碩士研究生學位論文華東(申請工學碩士學位)用于電子器件冷卻的CPL系統(tǒng)強化換熱特性分析研究學科專業(yè)：培養(yǎng)方向：碩士生：指導(dǎo)教師：熱能工程熱能開發(fā)與利用孟光范李華玉(副教授)王照亮(副教授)AnalysisoftheenhancedheatexchangecharacteristicsoftheCPLsystemusedtocooltheelectrondevicesMengGuangf

2、an(ThermalEnergyEngineering)DirectedbyAssociateProfessorLiHuayuandWangZhao—liangAbstractAsanewtechniqueinthefieldofmicrocharmelphasechangeheattransfermicrocapillarygroovedheatsinkCandrivefluidflowbycapillaryforceandcrcat

3、eenhancedevaporationheattransferconditionsbypromotingtheformationofanextendedmeniscusinthethreephasecontactlineregionofamicrogrooveIthasbeenusedtOachievetheheatexchangewithhi曲heattransfercoefficientandllighheatfluxThemai

4、npurposeofthepresentdissertationistoclarifywetting(dryout)，flowandphasechangeheattransferbehaviorandmechanismsinverticalrectangularcapillarymicrogroovesexperimentallyandtheoreticallyTwophase—changeheattransfermechanismsa

5、readvancedfortheenhancedheattransferprocessinthemicrogroovesOneofthemispureevaporationheattransfermodelintheextendedthinfilmregionnearthetriplephasecontactlineofvaporliquidsolidatlowerinputheatfluxTheotheroneiscombinedhe

6、attransfermodelofevaporatingheatUamferintheextendedthinfilmregionnearthetriplephasecontactlineofvaporliquidsolidandboilingheattransferintheintrinsicmeniscusregionatlligherinputheatfluxThroughthetheoreticalstudiesofliquid

7、wettingcharacteristicsinverticalrectangularcapillarymicrogrooves，theproposedtheoreticalmodelforliquidwettingcharacteristicsinthemicrogroovescouldpredictthemeniscusdry—outpointwellAnditcouldexplainthemutualinfluencebeqwee