Enhanced Accident Tolerant Fuels for LWRS - A Preliminary Systems Analysis

Youinou, Gilles ; Sen, R. Sonat

Idaho National Laboratory

关键词: Fuels;    Low Water Reactor;    Develop;    Lwr;    Fukushima Daiichi;   

DOI  :  10.2172/1111499
RP-ID  :  INL/EXT-13-30211
RP-ID  :  DE-AC07-05ID14517
RP-ID  :  1111499

美国|英语

来源: UNT Digital Library

【 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.