发明名称 Method for generating thermal-mechanical limits for the operation of nuclear fuel rods
摘要 A method and system for demonstrating compliance of nuclear fuel rods with fundamental licensing criteria for fuel rod internal pressure during nuclear reactor operation is presented. A nuclear fuel rod evaluation process (300) is performed during the fuel cycle design and licensing process for each operating cycle of a particular nuclear reactor. The evaluation process (300) includes a rod-by-rod internal pressure analysis based on empirical data of actual operational power output levels of each fuel rod in the reactor core. A computer program (300) constructs individual fuel rod power histories (308) for each nuclear fuel rod in the reactor core based on empirical information acquired during previous fuel cycles and the projected operation of the reactor in an upcoming fuel cycle (304). Using the constructed power histories for each fuel rod, the program then computes thermal and mechanical overpower limits and a maximum internal pressure for each rod in the upcoming fuel cycle (310, 314, 316). Licensing compliance (318) is demonstrated by confirming that the computed maximum internal pressure and maximum thermal and mechanical overpower stresses of any fuel rod for the upcoming fuel cycle is less than the fundamental licensing limits. <IMAGE>
申请公布号 EP1113455(A1) 申请公布日期 2001.07.04
申请号 EP20000311650 申请日期 2000.12.22
申请人 GENERAL ELECTRIC COMPANY 发明人 REESE, ANTHONY P.
分类号 G21C17/00;G21C17/06;G21D3/00 主分类号 G21C17/00
代理机构 代理人
主权项
地址