核动力装置二回路蒸汽系统仿真研究

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1、分类号：——UDC：密级：——编号：——工学博士学位论文Y937104核动力装置二回路蒸汽系统仿真研究博士研究牛：指导教师：学位级别：学科、专业：所在单位：论文提交口期：论文答辩日期：学位授予单位：田兆斐张志俭教授工学博士核能科学与工程核科学与技术学院2006年1月19曰2006年2月28日哈尔滨工程大学哈尔滨1：程火学博+学位论文态工况。F仿真曲线趋势合理，符合系统实际物理过程。关键词：二回路系统；非平衡箱体；流体网络；湿蒸汽轮机；仿真核动力装置二同路蒸汽系统仿真研究ABSTRACTSimulationonsteamsystemofthese

2、condaryloopofnuclearpowerplantisanimportantpartofresearchofreal-time，wholerange，wholefunctionalsimulationofnuclearpowerplant．Dynamicsimulationmathematicmodelsforsteamsystemofthesecondaryloopwereestablishedmadvalidatedinthispaper．Themainworkandproductionofthepaperareasfollows

3、，(1)Longdiametersaturatedsteampipesbelongtoactivethermodynamicobjects．Becausesteaminthepipeshashumidityandvolumeinertiaofthepipesisgreat，SOtWO—phasefluidhasviolentmassandenergyexchangeandno-equilibriumthermodynamicprocesscailhappeninthepipes．Two-phaseno-equilibriumtankmodelw

4、asestablishedinthepaper．(2)Shortdiametersaturatedsteampipesbelongtopassivethermodynamicobjects．Becauseofshortdiameterandfastflowoffluid，effectbetweenthetwo—phasefluidscanbeignored．Single—phasecompressiblefluidnetworkmodelfortheobjectsWaSestablishedinthepaper．(3)Heatevolution

5、correctionmethodfornodeofthe,saturatedsteamnetworkwasputforward，whichcanbeusedforsimulationforlarge—scalesteamnetworkofnuclearpowerplant．(4)Afteranalyzingtheno—equilibriumcharacteristicofwetsteaminturbine，authorputforwardthatflowincascadecallbedividedintotwosteps：no-saturate

6、dsteamflowincascaderunandflowthroughobliqueshockaftercascades．Adynamicsimulationmathematicmodelconsistedofconservationequationsofmass，momentum，energy，superheatsteamequation，pressuredropequation，two-phaseflowsequationsandrelationsbeforeandafterobliqueshock．Themodelisanon—line

7、arcoupledequation．哈尔滨j_=程大学『尊十学位论文(5)Waterfilmflashmathematicalmodelconsistedofconservationequationsofmassandenergywasestablishedinthepaper，whichcarlbeusedtosimulatetheeffectofthicknessofwaterfilmon10adlOSSofsaturatedsteamturbine．Inordertoveri．fythesimulationmodel，somesimula

8、tioninstancesofnuclearpoweredmarineandnuclearpowerplantweregiven．Theresults