New Innovative Spherical Cermet Nuclear Fuel Element to Achieve an Ultra-Long Core Life for use in Grid-Appropriate LWRs.

Senor, D. J. ; Painter, C. L. ; Geelhood, K. J. ; Wootan, D. W. ; Meriwether, G. H.

Technical Information Center Oak Ridge Tennessee

关键词: Cermets;    Fuel elements;    Atoms;    Reactor cores;    Coolants;   

RP-ID  :  DE2008921586

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Spherical cermet fuel elements are proposed for use in the Atoms For Peace Reactor (AFPR-100) concept. AFPR-100 is a small-scale, inherently safe, proliferation-resistant reactor that would be ideal for deployment to nations with emerging economies that decide to select nuclear power for the generation of carbon-free electricity. The basic concept of the AFPR core is a water-cooled fixed particle bed, randomly packed with spherical fuel elements. The flow of coolant within the particle bed is at such a low rate that the bed does not fluidize. This report summarizes an approach to fuel fabrication, results associated with fuel performance modeling, core neutronics and thermal hydraulics analyses demonstrating a approx. 20 year core life, and a conclusion that the proliferation resistance of the AFPR reactor concept is high.