CPU重力熱管使用不同天然工質(zhì)時的傳熱特性實驗研究.pdf

1、分類號UDC密級學(xué)號彳屈火擎碩士學(xué)位論文論文題目：CPU重力熱管使用不同天然工質(zhì)時的傳熱特性實驗研究論文作者：吳治娟婁嘉、警：k警甍：童明偉教授博導(dǎo)重慶大學(xué)動力工程學(xué)院申請學(xué)位級別：碩士專業(yè)名稱：制冷及低溫工程論文提交日期：2002年4月，D日答辯日期：2002年g月j日學(xué)位授予單位：重慶大學(xué)授位日期：2002年月日答辯委員會主席：杜揚論文評閱人：杜揚翟黃之2002年月日重慶大學(xué)碩士論文ABSTRACTAbstractTheheatdi

2、ssipationandcoolingintherunningintegrateniicro—electronicpartsisanimportantresearchthemeofmicro—electronicsThehighertheprocessingspeedofcomputerthemoreheatgeneratingfromCPUchipIftheheatcan’tbedissipatiedeffectivelythepro

3、cessingstabilityandspeedwillbedecreaseddramaticallyInordertofitthedemandforfuturehighspeedCPUchipwhoserunningheatfluxreachesto100—1000W／cm2，thedevelopmentofauefficientcoolingtechnologyhasbecometheupdatekeyprojectsallover

4、theworldSinceitsintensiveheattransfercharacteristics，heatpipebehavesaprofoundadvantageinthecoolingofintegratedcircuitsOnthebasisofthemanufacturednewaluminiumheatpipesetsandresearchworkdoneintheRefrigerationLabofChongqing

5、UniversityanEWthermalsyphoncoolingmachinemadeofaluminiumhasbeendesignedThistextistostudythiskindofthermalsyphontouseworkingfluidMethanol，EthanolandAcetoneWithexperimentsandtheoreticalanalyzingwefindWhentheheatdischargeiS

6、smallerthantheentrainmentlimitedwhatjnfluencestheabilityofheattransmittingofworkqualityisthequantityofinjectionanddrylimitfluidinventorytheoptimumquantityofinjectionofthethreeworkingfluidis8149；Andthedeliveringfactorthat

7、transmissiontoefficientiSdeterminedbycapillarylimitnottheheattransmissionabilityofthethermalsyphonTherefore，amongthethreeworkingfluid，AcetoneisthebestLowwind—speedhastheobviousfu。nctioninheattransmissionofthethermalsypho

8、nButwhenthewind—speedbecomesabovelm／shereafterwind—speedincreasefortheCPUthermalsiphonoftransmitheattheability’SgainresultthedecelerationSoitisconsideredperfectwhenthewind—speedislrn／sThroughthisexperimentationwefoundtha

9、twhentheCPUthermalsyphoncoolingmachineusedAcetoneasworkingfluid，windspeedlm／s，CPUchipcaloricty60witsvolumetricheatreleaseratecameto13104W／(m’K1WeCanseethanthiskindofCPUthermalsyphoncoolingmachineistheonewithsimpletexture

10、，easyworking，lowcosts，reliableworkandgoodperformanceFromthetextualresearchwecanknowthatCPUthermalsyphoncoolingmachineusingAcetoneasworkingfluid，windspeedis1m／s，CPUchipcalorictyis60wcanguaranteechiptemperaturedoesnotexcee

11、dingtheenvironmenttemperatureabove40“C，namelycanguaranteeingchiptemperaturegenerallynotexceeding80。CItcansafficetherequireofthelongtermmovementofPentium—IVKeywords：workingfluid，thermalsiphon、quantityofinjection，drylimitf