Simplified Mathematical Model and Realization of the Remaining Life of Nuclear Fuel Upon Decommissioning of RBMK-Type Reactor
- Authors: Zagrebayev A.M.1, Zaluzhnaya G.A.1, Naumov V.I.1
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Affiliations:
- National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
- Issue: Vol 125, No 5 (2019)
- Pages: 284-289
- Section: Article
- URL: https://journal-vniispk.ru/1063-4258/article/view/249122
- DOI: https://doi.org/10.1007/s10512-019-00482-9
- ID: 249122
Cite item
Abstract
The realization of the residual life of nuclear fuel upon decommissioning of a RBMK type channel reactor is studied. A mathematical model of the energy-production spectrum of FA is presented. Two methods of decommissioning a reactor depending on the method of criticality conservation are compared. The first possible method of conserving the criticality of a reactor upon commissioning is extraction of the FA with high energy production and the second is formation of a two-zone load: fresh FA are placed at the center and spent FA at the periphery. The second method gives a greater advantage in terms of power and remaining energy-production life. The results were obtained in a point model of the dynamics of the FA spectrum in a linear fit to the FA power and multiplication coefficient versus energy production and attest the fundamental possibility of optimizing fuel use and decommissioning of a RBMK reactor.
About the authors
A. M. Zagrebayev
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Email: j-atomicenergy@yandex.ru
Russian Federation, Moscow
G. A. Zaluzhnaya
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Email: j-atomicenergy@yandex.ru
Russian Federation, Moscow
V. I. Naumov
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Email: j-atomicenergy@yandex.ru
Russian Federation, Moscow
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