发明申请
US20050105675A1 Systems and methods for estimating helium production in shrouds of nuclear reactors
审中-公开
用于估计核反应堆护罩中氦生产的系统和方法
- 专利标题: Systems and methods for estimating helium production in shrouds of nuclear reactors
- 专利标题(中): 用于估计核反应堆护罩中氦生产的系统和方法
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申请号: US10714417申请日: 2003-11-14
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公开(公告)号: US20050105675A1公开(公告)日: 2005-05-19
- 发明人: Shivakumar Sitaraman , Ren-Tai Chiang , Alton Jenkins
- 申请人: Shivakumar Sitaraman , Ren-Tai Chiang , Alton Jenkins
- 主分类号: G21C17/003
- IPC分类号: G21C17/003 ; G01N33/20 ; G21C20060101 ; G21C1/08 ; G21C17/00 ; G21C17/01 ; G21C19/00 ; G21D1/00
摘要:
A method for estimating a helium content of the stainless steel core shroud in a boiling water nuclear reactor includes, in an exemplary embodiment, determining a neutron fluence for predetermined areas of the reactor, and estimating a helium content of the stainless steel shroud at predetermined areas of the reactor using the following equation: CHe=1031*(1−e−bj*φj), where CHe is the helium concentration as atomic parts per billion of helium in the stainless steel shroud per weight parts per million of boron in the stainless steel shroud, bj is a value between about 2.50 e−21 and about 5.00 e−21, φj is fluence expressed as neutrons per square centimeter, and subscript j denotes thermal fluence or fast fluence.