Radial reflector discontinuity factors iteration scheme at VR-1

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F20%3A00342307" target="_blank" >RIV/68407700:21340/20:00342307 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.nucengdes.2020.110737" target="_blank" >https://doi.org/10.1016/j.nucengdes.2020.110737</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nucengdes.2020.110737" target="_blank" >10.1016/j.nucengdes.2020.110737</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Radial reflector discontinuity factors iteration scheme at VR-1

Popis výsledku v původním jazyce

The macroscopic data preparation process is the essential part of the safe operation nuclear power station and despite the increasing calculation power this method stays essential in the near future. The data preparation process and mainly the assembly discontinuity factors (ADF) calculation are analysed in the paper. Developed models are connected with the C7 core of the VR-1 research reactor, which is operated by the Czech Technical University in Prague. The fuel models as well as the connection of the fuel and the reflector models are analysed. The multiplication factor and the neutron flux distribution are compared. The fuel ADF usage showed better prediction of the multiplication factor and also the neutron flux distribution. The new external iteration reflector ADF calculation method is developed, implemented and tested in the paper. The most realistic model of C7 core was used as a test case. The best results of the multiplication factor as well as the neutron flux distribution were obtained with the external iteration process ADF calculation. The multiplication factor was calculated with only 452 pcm discrepancy, more than 6600 pcm better result than without ADF and more than 3400 pcm better result than with reflector ADF calculated via SCALE Newt.

Název v anglickém jazyce

Radial reflector discontinuity factors iteration scheme at VR-1

Popis výsledku anglicky

The macroscopic data preparation process is the essential part of the safe operation nuclear power station and despite the increasing calculation power this method stays essential in the near future. The data preparation process and mainly the assembly discontinuity factors (ADF) calculation are analysed in the paper. Developed models are connected with the C7 core of the VR-1 research reactor, which is operated by the Czech Technical University in Prague. The fuel models as well as the connection of the fuel and the reflector models are analysed. The multiplication factor and the neutron flux distribution are compared. The fuel ADF usage showed better prediction of the multiplication factor and also the neutron flux distribution. The new external iteration reflector ADF calculation method is developed, implemented and tested in the paper. The most realistic model of C7 core was used as a test case. The best results of the multiplication factor as well as the neutron flux distribution were obtained with the external iteration process ADF calculation. The multiplication factor was calculated with only 452 pcm discrepancy, more than 6600 pcm better result than without ADF and more than 3400 pcm better result than with reflector ADF calculated via SCALE Newt.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nuclear Engineering and Design

ISSN

0029-5493

e-ISSN

1872-759X

Svazek periodika

366

Číslo periodika v rámci svazku

110737

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

—

Kód UT WoS článku

000558754700005

EID výsledku v databázi Scopus

2-s2.0-85088041559