Enhanced Accident Tolerant Fuels for LWRS - A Preliminary Systems Analysis

Gilles Youinou ; R. Sonat Sen

关键词: Develop;    fuels;    Fukushima Daiichi;    Low Water Reactor;    LWR;   

DOI  :  10.2172/1111499
RP-ID  :  INL/EXT-13-30211
PID  :  OSTI ID: 1111499

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

The severe accident at Fukushima Daiichi nuclear plants illustrates the need for continuous improvements through developing and implementing technologies that contribute to safe, reliable and cost-effective operation of the nuclear fleet. Development of enhanced accident tolerant fuel contributes to this effort. These fuels, in comparison with the standard zircaloy ??? UO2 system currently used by the LWR industry, should be designed such that they tolerate loss of active cooling in the core for a longer time period (depending on the LWR system and accident scenario) while maintaining or improving the fuel performance during normal operations, operational transients, and design-basis events. This report presents a preliminary systems analysis related to most of these concepts. The potential impacts of these innovative LWR fuels on the front-end of the fuel cycle, on the reactor operation and on the back-end of the fuel cycle are succinctly described without having the pretension of being exhaustive. Since the design of these various concepts is still a work in progress, this analysis can only be preliminary and could be updated as the designs converge on their respective final version.