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1、上海交通大学硕士学位论文压水堆核电站热力系统建模分析与研究姓名：高蕊申请学位级别：硕士专业：核科学与工程指导教师：杨燕华20070122摘要明了模拟的正确性。本文研究成果证明了以RELAP5为工具的压水堆全范围热力系统模拟是可行的，同时也为热力系统的进一步详细建模提供了研究的参考和基础。关键词：RELAP5，压水堆，热力系统，常规岛，建模，低功率，升负荷II摘要INVESTIGATIONOFMODELINGANDSIMULATIONONAPWRPOWERCONVERSIONSYSTEMABSTRACTThefull-scopemodelingandsimulat
2、ionofPWRpowerconversionsystemplaysasignificantroleinthereactorregulationargumentation,designresearch,operatortraining,accidentanalysisetc.ThroughthemodelingandsimulationofPWRthermal-hydraulicsystem,wecanensurethereliabilityandsafetyofoperationforareactor.Tosimulatethefull-scopepowerc
3、onversionsystem,notonlythecontainment,steamgenerator,pressurizersystemandreactorcoolantsystemofnuclearisland,butalsothemainsteamsystem,turbinesystem,bypasssystem,feedwatersystem,condensatesystem,moistureseparatorreheatersystem,low-pressureandhigh-pressureheaterssystemofconventionalis
4、landareallconsideredandmodeled.BasedonthepowerconversionsystemofnuclearandconventionalislandsofDayabayPWR,theauthormodelsthethermal-hydraulicsystemsforPWRbyusingthebest-estimateprogram-RELAP5.AcomparisonbetweenthecalculatedresultsandtheactualdataofreactordemonstratesafinematchforDaya
5、bay,andmanifeststhefeasibilityinsimulatingfull-scopepowerconversionsystemofPWRbyRELAP5atthesametime.Then,Throughthesimulationofsomecontrolsystems,thepaperobtainsthetransientprocessfromapproximatezeroFPto15%FP,pointsoutsomefactorswhichwillinfluencetheprogressandtestifiesthecorrectness
6、oftheIII摘要simulation.RegardingDayabayPWRthermal-hydraulicsystem,thispapershowsthatthepracticalapplicationofRELAP5codesforfull-scalePWRthermal-hydraulicsimulationispossibleandfeasible.Meanwhile,itprovidesareferenceandfoundationforadeeperresearchofPWRpowerconversionsystem.KEYWORDS:RELA
7、P5,PWR,powerconversionsystem,conventionalsystem,modeling,LowPower,ImprovingLoadIV符号说明符号说明ABPlow-pressurefeedwaterheatersystemAHPhigh-pressurefeedwaterheatersystemAPPturbine-drivenfeedwaterpumpAREfeedwaterflowcontrolASGauciliaryfeedwaterCEXcondensateextractionsystemFPfullpowerFWfeedwa
8、tersystemGCT
