基于示范快堆的ADS次临界快堆堆芯研究

选取中国示范快堆作为次临界快堆参考堆芯,研究次临界快堆作为嬗变PWR(U)乏燃料中次锕系元素的可行性。中国示范快堆堆芯设计是参考目前正在建设的俄罗斯示范快堆BN-800。次临界快堆堆芯在示范快堆堆芯基础上去掉中间7盒组件放置铅靶组件,控制棒组件用含贫铀和次锕系元素(MA)的组件代替,转换区组件用反射层组件代替。采用MCNPX和ORIGEN2程序作为计算软件。计算结果表明:次临界快堆中加入MA后能够保持一定的次临界度且具有较好的嬗变效果,因此,选取示范快堆堆芯作为ADS次临界快堆的参考堆芯研究是可行的。

ADS Sub-critical Fast Reactor Core Research Based on Demonstration Fast Reactor

China Demonstration Fast Reactor(CDFR) was chosen for the reference core of ADS sub-critical fast reactor,mainly studying on the feasible of transmutation minor actinides from the spent fuel of PWR(U).The design of CDFR referred to the BN-800 which is on construction of Russia.In the sub-critical fast reactor core,the inner 7 subassemblies of CDFR were replaced with lead target subassembly,the control rod subassemblies were replaced with the subassemblies which contain MA and depleted uranium,and the radial...