Study of multiplication factor sensitivity to the spread of VVER spent fuel isotopics calculated by different codes.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46356088%3A_____%2F00%3A00000005" target="_blank" >RIV/46356088:_____/00:00000005 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Study of multiplication factor sensitivity to the spread of VVER spent fuel isotopics calculated by different codes.

Popis výsledku v původním jazyce

As a sensitivity study the impact on the system reactivity was studied in the case that different calculational methodologies of spent fuel isotopic concentrations were used for VVER spent fuel inventory computations. The sets of isotopic concentrationsobtained by calculations with different codes and libraries as a result of the CB2 international benchmark focused on VVER-440 burnup credit were used to show the spread of the calculated spent fuel system reactivity. Using the MCNP 4B code and changingthe isotopics input data, the multiplication factor of an infinite array of the VVER-440 fuel pin cells was calculated. The evaluation of the results shows the sensitivity of the calculated reactivity to different calculational methodologies used for theIn the studied cases of the CB2 benchmark, the spread of the reference k-results relative to the mean was found less or about ?1% in spite of the fact that the data of isotopic concentrations were spread much more.

Název v anglickém jazyce

Study of multiplication factor sensitivity to the spread of VVER spent fuel isotopics calculated by different codes.

Popis výsledku anglicky

As a sensitivity study the impact on the system reactivity was studied in the case that different calculational methodologies of spent fuel isotopic concentrations were used for VVER spent fuel inventory computations. The sets of isotopic concentrationsobtained by calculations with different codes and libraries as a result of the CB2 international benchmark focused on VVER-440 burnup credit were used to show the spread of the calculated spent fuel system reactivity. Using the MCNP 4B code and changingthe isotopics input data, the multiplication factor of an infinite array of the VVER-440 fuel pin cells was calculated. The evaluation of the results shows the sensitivity of the calculated reactivity to different calculational methodologies used for theIn the studied cases of the CB2 benchmark, the spread of the reference k-results relative to the mean was found less or about ?1% in spite of the fact that the data of isotopic concentrations were spread much more.

Druh

D - Stať ve sborníku

CEP obor

JF - Jaderná energetika

OECD FORD obor

—

Projekt

<a href="/cs/project/FB-C2%2F51" target="_blank" >FB-C2/51: Vývoj technologie implementace burn-up creditu (BUC) pro skladovací a transportní kontejnery vyhořelého paliva z jaderných reaktorů.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2000

Kód důvěrnosti údajů

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

Název statě ve sborníku

Implementation of Burnup Credit in Spent Fuel Management Systém, TEC-DOC-1241

ISBN

1011-4289

ISSN

—

e-ISSN

—

Počet stran výsledku

8

Strana od-do

122-129

Název nakladatele

IAEA

Místo vydání

Vídeň; AT

Místo konání akce

IAEA, Vídeň, AT

Datum konání akce

10. 7. 2000

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—