Effect of the Burnable Absorber (Gd) on the Multiplying Coefficient (K<sub>∞</sub>) in the Process of Fuel Burnup for Full-Scale and Poly Cells Models for the WWER Reactor-Reference-Cited by-同舟云学术

Effect of the Burnable Absorber (Gd) on the Multiplying Coefficient (K<sub>∞</sub>) in the Process of Fuel Burnup for Full-Scale and Poly Cells Models for the WWER Reactor

Published:2022-10-12 Issue:4 Volume:45 Page:54-60
ISSN:2499-9733
Container-title:Global Nuclear Safety
language:
Short-container-title:GNS

Author:

Rahman Anisur S. K.¹^ORCID,Uvakin M. A.²^ORCID

Affiliation:

1. Bangladesh Atomic Energy Regulatory Authority (BAERA)

2. National Research Nuclear University (MEPhI)

Abstract

The paper considers various concentrations of burnable absorber (BA) Gadolinium (Gd) in the system of compensation of excess reactivity in the reactor of WWER type at the extended campaigns. It is analyzed the influence of the method for the Full-scale and Poly-cells model placing the burnable absorber in the fuel with gadolinium rods (tveg). The strong influence of the BAs composition in the fuel with gadolinium rods (tveg) dependence on the multiplication factor of the fuel burnup is shown.

Publisher

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Subject

General Earth and Planetary Sciences,General Engineering,General Environmental Science

Reference12 articles.

1. Rahman Anisur S.K., Uvakin M.A. Sravniniye rezul'tatov analiza neopredelennosti v fizicheskikh raschetakh yacheyek WWER v sutochnom grafike manevrirovaniya dvumya programmam GETERA i WIMS [Compare the Result of Uncertainty Analysis in the Physical Calculations of WWER Cells in the Daily Maneuvering Schedule by GETERA and WIMS Programs], Global'naya yadernaya bezopasnost' [Global Nuclear Safety], 2019, no. 1(30), rr. 90-100 (in Russian).

2. Rahman S.K. Anisur, M.A. Uvakin, Issledovaniye izmeneniya kontsentratsii poglotitelya pri rabote reaktora WWER-1000 v rezhime manevrirovaniya [Investigation of Absorber Concentration Changes during Maneuvering Operation in WWER 1000 Reactor], Global'naya yadernaya bezopasnost' [Global Nuclear Safety], 2020, № 2(35), rr. 83-91 (in Russian).

3. Anisur, R S K, Uvakin M A, Uncertainty Analysis in the Physical Calculation of WWER Cells in the Daily Maneuvering Schedule. (2018) Journal of Physics: Conference Series, 1133(1), Article № 012048 (in English).

4. Nikolaev A.L., Uvakin M.A. Issledovaniye reaktivnosti WWER v rezhime s nekontroliruyemym izvlecheniyem gruppy or suz pri minimal'no vozmozhnom nachal'nom potoke neytronov. [Investigation of WWER Reactivity in a Mode with Uncontrolled Extraction of a CPS OR Group at the Lowest Possible Initial Neutron Flux], Problemy atomnoj nauki i tekhniki. Seriya: YAderno-reaktornye konstanty [Problems of Atomic Science and Technology. Series: Nuclear Reactor Constants], 2019, no. 2, rr. 170-179 (in Russian).

5. Petkevich I.G., Uvakin M.A. Analiz neopredelennostey rezul'tatov rascheta rezhima s razryvomparoprovoda na ustanovke AES-2006 po kodu KORSAR/GP s primeneniyem programmy LINQUAD [Uncertainty Analysis of the Results of the Calculation of the Mode with a Break in the Steam Pipeline at the AES-2006 Unit Using the KORSAR/GP Code Using the LINQUAD Program], Voprosy atomnoj nauki i tekhniki. Seriya: Fizika yadernyh reaktorov [Issues of Atomic Science and Technology. Series: Physics of Nuclear Reactors], 2013, no. 2, rr. 51-60 (in Russian).