EDN: ZUOKQU
Authors & Affiliations
Isanov K.A.1, Susakin V.A.1, 2, Eliseev V.A.1, Gulevich A.V.1
1 A.I. Leypunsky Institute for Physics and Power Engineering, Obninsk, Russia
2 Seversk Institute of Technology “National Research Nuclear University MEPhI”, Seversk, Russia
Isanov K.A.1 – Research Engineer. Contacts: 1, pl. Bondarenko, Obninsk, Kaluga region, Russia, 249033. Tel.: +7 (981) 711-92-65; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Eliseev V.A.1 – Head of Laboratory, Cand. Sci. (Tech.).
Gulevich A.V.1 – Head of the Department of Reactor Physics, Dr. Sci. (Phys.-Math.).
Susakin V.A.1, 2 – Intern, Student.
Abstract
This paper considers the concept of up-grading the quality of plutonium from spent nuclear fuel of various reactors by means of a single recycle in a BN-1200 reactor, i.e., plutonium upgrading. The possibility of plutonium upgrading from accumulated stocks as well as from REMIX/MOX fuel of VVER-type reactors is considered. An assessment of plutonium stocks of different quality is given, and possible compositions of plutonium in REMIX and MOX fuel in the transition to a two-component fuel cycle are considered. In addition to estimation of plutonium stocks of different origin, plutonium vectors characterizing plutonium quality are also given. A computational model of a BN-1200 type reactor has been compiled. The necessary share and mass of plutonium of different quality for the reactor operation during the micro-campaign have been determined. Effects underlying the plutonium upgrading are described at the qualitative level. The nuclide dynamics of basic plutonium isotopes of different qualities during one fuel campaign is calculated. The role of reproduction zones on the plutonium upgrading effect and mass balance is also considered and determined. The mass and quality of plutonium discharged from the lower end and side reproduction zones are determined. The quality of plutonium discharged from the core after upgrading and the upgrading effect of the resulting plutonium, which is a mixture of plutonium from the core and the reproduction zone, are presented. Conclusions are drawn on the feasibility and efficiency of plutonium upgrading of plutonium from the core and the reproduction zone.
Keywords
improved plutonium composition, MOX fuel, REMIX fuel, BN-1200, VVER-1200, spent nuclear fuel plutonium, reproduction zone, two-component fuel cycle, nuclide dynamics
Article Text (PDF, in Russian)
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UDC 621.039.54(04)
Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2024, no. 4, 4:11
