蒸發(fā)冷卻電機(jī)空心導(dǎo)線內(nèi)氣液兩相流動(dòng)摩擦阻力的研究.pdf

1、分類(lèi)號(hào)UDC密級(jí)編號(hào)中國(guó)科學(xué)院研究生院博士學(xué)位論文y808121蒸筮撿塑皇扭窒!墜昱繕內(nèi)氫邃匝擔(dān)流動(dòng)摩擦阻力的研究指導(dǎo)教師題墾彪暄(蟲(chóng)國(guó)型堂睦電王硒壅壓監(jiān)囂雖2申請(qǐng)學(xué)位級(jí)別蔓學(xué)科專(zhuān)業(yè)名稱(chēng)魚(yú)拯塹電墨論文提交日期2壁墮：量論文答辯日期2Q壁量：魚(yú)培養(yǎng)單位生國(guó)型堂陵魚(yú)王塹塑匱學(xué)位授予單位主墾抖堂瞳嬰塞生瞳StudyontheFrictionResistantintheHollowStatorBarofEvaporativeCoolingGen

2、eratorCaiJing(electricmachineryandelectricalequipment)DirectedbyacademicianGuGuobiaoAbstractThe400MWevaporativecoolinghydrogeneratorin1999atLijiaxiaPowerStationprovesthesecurityandreliabilityofevaporativecoolingtechnique

3、ComparedwiththeinnerwatercoolinggeneratordesignedbyforeigncountryitshowsapparentadvantagesInrecentyears，ThreeGorgeCorporationisgoingtosubstitutetheinnerwater—coolingforevaporativecoolingUnderthecondition，itisinstructivei

4、nresearchingontheflowandheattransfercharacterwhichisthecoretechniqueofevaporativecoolinggeneratorforthedesigntheoryandmanufacturetechnology，Thisarticlemainlystudiesthefrictionresistantofliquidandgastwo—phaseflowintheholl

5、owstatorbarandthecirculationtheorywithdifferentunusedcoolantindescendingpipeThecirculationmethodofverticalevaporativecoolinggeneratorisCLSC(closeloop—selfcirculation)Thearticlestudiedthecoolingsystemcirculationtheoryfrom

6、theaspectofenergyconservation，andtestifiedbyexperimentaldataTheresultisthat99％heat，whichthecoolantabsorbs，isusedtochangeitsstate，increasingtheenthalpyEnthalpyvarietycanbeusedtocalculatetheflowresistantandverifytheresulto

7、fcondenserheightdesign，Itprovesthatcirculationmotivityiscomposedoftwoportions，oneistheunusedcoolantindescendingpipe，andtheotheristhecircularcoolantWhenthereisnounusedcoolant，itisthecircularcoolantwhichofl、eredthemotivati

8、onofcirculationItisacomplementaritytoverticalgeneratorcirculationtheoryThearticleimprovedtheliquidandgastwo—phasecompelflowexperimentaltableandmeasuresystemwithcoolantFI13，theinfluenceofheatload，vaporquantityfluxandpress

9、ureonthefrictionresistantwerestudiedWithMNequationandL—Mequation，magnifyingmultiplewerecalculated，andcorrectedbyexperimentaldataTheresultshowsthatwithintheexperimentalflux(1339／s4699／s)theoptimalfluxisfrom1339／sto3349／sI

10、ntherangetheerroriswithin10％withxe=0108；outoftherange，theerroriswithin10％withxe03TheresultcanbeusedintechnicalapplicationForconvenienceofindustryapplication，thefigureofexitvaporquantityversusmagnifyingmultiplewithdiffere