NMB4.0: development of integrated nuclear fuel cycle simulator from the front to back-end

Autor: Okamura Tomohiro, Katano Ryota, Oizumi Akito, Nishihara Kenji, Nakase Masahiko, Asano Hidekazu, Takeshita Kenji
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: EPJ Nuclear Sciences & Technologies, Vol 7, p 19 (2021)
Druh dokumentu: article
ISSN: 2491-9292
DOI: 10.1051/epjn/2021019
Popis: Nuclear Material Balance code version 4.0 (NMB4.0) has been developed through collaborative R&D between TokyoTech&JAEA. Conventional nuclear fuel cycle simulation codes mainly analyze actinides and are specialized for front-end mass balance analysis. However, quantitative back-end simulation has recently become necessary for considering R&D strategies and sustainable nuclear energy utilization. Therefore, NMB4.0 was developed to realize the integrated nuclear fuel cycle simulation from front- to back-end. There are three technical features in NMB4.0: 179 nuclides are tracked, more than any other code, throughout the nuclear fuel cycle; the Okamura explicit method is implemented, which contributes to reducing the numerical cost while maintaining the accuracy of depletion calculations on nuclides with a shorter half-life; and flexibility of back-end simulation is achieved. The main objective of this paper is to show the newly developed functions, made for integrated back-end simulation, and verify NMB4.0 through a benchmark study to show the computational performance.
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