【摘要】 CNP1500是四环路、轻水慢化和冷却的压水堆核电站,反应堆堆芯由205个AFA-3GXL燃料组件组成,堆芯冷态活性段高度为426.7 cm,等效直径为347.0 cm。反应堆热功率输出为4 250 MW,平均线功率密度为179.5 W/cm。平衡循环堆芯的循环长度为470有效满功率天,各循环堆芯所有状态下的慢化剂温度系数均为负值;各循环热态满功率、无控制棒、平衡氙状态下的核焓升因子FΔH都低于限值;最大卸料组件燃耗小于55 000 MW.d/tU;各循环寿期末停堆裕量满足设计准则;低泄漏堆芯装载降低了反应堆压力容器的辐照损伤,有利于延长压力容器的使用寿命。叙述了CNP1500核电站堆芯燃料管理设计方案及主要计算结果。更多还原

【Abstract】 CNP1500 is a four-loop PWR nuclear power plant with light water as moderator and coolant.The reactor core is composed of 205 AFA-3GXL fuel assemblies.The active core height at cold is 426.4 cm and equivalent diameter is 347.0 cm.The reactor thermal output is 4 250 MW,and average linear power density is 179.5 W/cm.The cycle length of equilibrium cycle core is 470 equivalent full power days.For all cycles,the moderator temperature coefficients at all conditions are negative values,the nuclear enthalpy rise factors F_ΔH at hot full power,all control rods out and equilibrium xenon are less than the limit value,the maximum discharge assembly burnup is less 55 000 MW·d/tU,and the shutdown margin values at the end of life meet design criteria.The low-leakage core loading reduces radiation damage on pressure vessel and is beneficial to prolong use lifetime of it.The in-core fuel management design scheme and main calculation results for CNP1500 nuclear power plant are presented.更多还原