Phenomena, gaps, and issues for neutronics modeling and simulation of FHRs. (January 2019)

• Record Type: Journal Article
• Authors: Rahnema, Farzad; Diamond, David; Serghiuta, Dumitru; Burke, Paul
• Is Part Of: Annals of nuclear energy. Volume 123(2019)
• Page Start: 172
• Page End: 179
• Publication Date: 2019-01
• Subjects: Phenomena Identification and Ranking -- PIRT -- Fluoride-Salt-Cooled High Temperature Reactors (FHR) -- Modeling and simulation gaps; Nuclear energy -- Periodicals; Nuclear engineering -- Periodicals; 621.4805
• DOI: 10.1016/j.anucene.2018.08.035
• Languages: English
• ISSNs: 0306-4549

Abstract

Abstract: On the path to deployment of any reactor, modeling tool verification and validation is a key step. Fluoride-Salt-Cooled High Temperature Reactors (FHR) pose challenges to neutronics modeling and simulation tools due to several design features of the reactor type. This paper presents a categorized list of phenomena that pose challenges to FHR modeling using current neutronics tools. These phenomena are presented in four categories: Fundamental Cross Section Data, Material Composition, Computational Methodology, and General Depletion. A short path forward for these phenomena is also presented. In addition, a discussion of the resulting gaps in current codes is presented.