基于MCNP的微型鈉冷快堆堆芯物理設(shè)計計算.pdf

1、Y1211491分類號：UDC：密級：編號：工學(xué)碩士學(xué)位論文基于MCNP的微型鈉冷快堆堆芯物理設(shè)計計算碩士研究生：指導(dǎo)教師：學(xué)位級別：學(xué)科、專業(yè)：所在單位：論文提交日期：論文答辯日期：學(xué)位授予單位：賀克羽韓偉實教授工學(xué)碩士核能科學(xué)與工程核科學(xué)與技術(shù)學(xué)院2007年2月2007年3月哈爾濱工程大學(xué)哈爾濱下程大學(xué)碩學(xué)位論文ABSTRACTMinitypereactorhasmanycharacterssuch筋smallvolume1ight

2、weight，safe，credibleandcanofferconsiderablepowerforlongtimeIthasbecomeadisquisitivehotspotofmanydevelopedcountryforitsspecialpurposeinmanyfieldssuchasseawaterdesalting，areaheat，sailerpower，outerspacepowerandSOonThisproje

3、ctaimsattheexigentneedforthedevelopmentofminitypenuclearpowerreactorandhasfinishedthephysicsinvestigationoftheMinitypeFastneutronReactor(MFR)Thispaperhassetupasmartphysicsmodelforthefuelcomponents，coolant，coreconfigurati

4、on，reflectlayerandperipheralshieldbasedonthecharactersofMFRbymontecarlocodeMCNP一4CThenadetailedcalculationforthecharacteristicparameterswasdone，such船criticalIGff，neutronspectrum，neutronfluxdistribution，powerdistribution，

5、reactivitycontrol，activationdistributionandtheproductivityofradioactiveproductThefinalresultsindicatethatthemainparametersofMFR’SconceptualdesignArereasonableanditsbasicphysicalspecialitiescomplywiththerequirementandinte

6、ntionofcoredesignThereactorhasbenignstabilityandinherentsecurityThecontrolsystemisabletocarryoutareliablereactivitybalanceefficientlyandmeetstherequestforlongplayingoperationTheshieldingmaterialoutofmaincontainercanworko

7、utanapprovingstructureprimarilywithcarbonsteelaccordingtothesecurityruleBothnatriumactivationinfrstloopandradioactivedamnificationofstructuralstuffarcextremelyrestrictedandsimpletoshieldfromTheresultsarerelativelycredibl

8、eandnotaffectedmuchbydifferentdatalibraryHowevermoredetailedcalculationandagreatmanyworkofexperimentandvalidationshouldbecarriedoutcombinedwithotherprimarysystemsinlatterdesignTheworkofthispaperhasgreatsignificanceforthe