原子能科学技术
原子能科學技術
원자능과학기술
ATOMIC ENERGY SCIENCE AND TECHNOLOGY
2014年
12期
2298-2303
,共6页
郑勇%彭敏俊%夏庚磊%刘新凯
鄭勇%彭敏俊%夏庚磊%劉新凱
정용%팽민준%하경뢰%류신개
RELAP5-HD程序%秦山核电二期堆芯%物理/热工水力耦合%掉棒事故
RELAP5-HD程序%秦山覈電二期堆芯%物理/熱工水力耦閤%掉棒事故
RELAP5-HD정서%진산핵전이기퇴심%물리/열공수력우합%도봉사고
RELAP5-HD code%Qinshan Phase Ⅱ NPP core%coupled neutronics/thermal-hydraulics%rod drop transient
采用RELAP5‐HD作为堆芯耦合计算程序,以秦山核电二期工程反应堆堆芯为研究对象,建立堆芯活性区的物理/热工水力耦合模型,在此基础上进行了稳态计算和掉棒事故仿真研究。结果表明,使用RELAP5‐HD计算得到的结果与电厂实测值符合较好,获得的掉棒事故参数曲线能准确反映事故工况下的参数变化趋势。稳态和事故工况的计算结果均符合堆芯物理/热工水力反馈效应的理论分析,证实了所建立的堆芯耦合模型的准确性,为下一步进行核电站系统的仿真分析提供基础。
採用RELAP5‐HD作為堆芯耦閤計算程序,以秦山覈電二期工程反應堆堆芯為研究對象,建立堆芯活性區的物理/熱工水力耦閤模型,在此基礎上進行瞭穩態計算和掉棒事故倣真研究。結果錶明,使用RELAP5‐HD計算得到的結果與電廠實測值符閤較好,穫得的掉棒事故參數麯線能準確反映事故工況下的參數變化趨勢。穩態和事故工況的計算結果均符閤堆芯物理/熱工水力反饋效應的理論分析,證實瞭所建立的堆芯耦閤模型的準確性,為下一步進行覈電站繫統的倣真分析提供基礎。
채용RELAP5‐HD작위퇴심우합계산정서,이진산핵전이기공정반응퇴퇴심위연구대상,건립퇴심활성구적물리/열공수력우합모형,재차기출상진행료은태계산화도봉사고방진연구。결과표명,사용RELAP5‐HD계산득도적결과여전엄실측치부합교호,획득적도봉사고삼수곡선능준학반영사고공황하적삼수변화추세。은태화사고공황적계산결과균부합퇴심물리/열공수력반궤효응적이론분석,증실료소건립적퇴심우합모형적준학성,위하일보진행핵전참계통적방진분석제공기출。
In this paper ,an integrated neutronics/thermal‐hydraulic model for the reac‐tor of Qinshan Phase Ⅱ NPP project was developed ,using the RELAP5‐HD as core coupled computational code .Based on the coupled model ,the steady state calculation and the rod drop transient simulation were performed .The results show that the values obtained from RELAP5‐HD calculation agree well with the available measured data ,and the calculated accident curves can predict all major parameters trends of the transient with good accuracy .Both steady state and transient calculation results are in accordance with the theoretical analysis from the feedback aspect of coupled reactor neutronics/thermal‐hydraulics ,this demonstrates that a successful coupled model of Qinshan PhaseⅡ NPP core has been developed ,and the established model provides a good foundation for further simulation analysis of the nuclear power plant system .