Evaluation of history effects in full-core calculations

Result code in IS VaVaI

RIV/46356088:_____/13:#0001667 - isvavai.cz

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Evaluation of history effects in full-core calculations

Original language description

Thanks to the rapid development of the computing power it is nowadays feasible to generate macroscopic data libraries for each computing node with its particular depletion history. The method is based on coupling the core physics code (ANDREA, which is aNEM-based 2-group diffusion code for VVER reactors) and the lattice code (HELIOS 2) in an iterative scheme. Each core physics code run establishes an estimate of the depletion history in terms of local parameter values (that is, values related to each of 7000 nodes of core discretization) depending on the local burnup; nodes with the same fuel composition and similar burnup history are grouped and then for each of the 700 "mutually different" nodes a new run of lattice code is performed, generating a new node-specific data library for the macrocode. The iterations are repeated until the power distribution has converged; however, usually only two iterations are needed due to the fact that also the node-specific libraries are parameteriz

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JF - Nuclear energy

OECD FORD branch

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Project

TA02020840: Improving the precision of computational methods used in nuclear reactor analysis leading to accurate results and efficient fuel usage

Continuities

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

Publication year

2013

Confidentiality

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

Article name in the collection

International Congress on Advances in Nuclear Power Plants (ICAPP 2013) Nuclear Power ? A Safe and Sustainable Choice for Green Future

ISBN

978-1-63266-038-1

ISSN

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e-ISSN

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Number of pages

11

Pages from-to

512-522

Publisher name

Korean Nuclear Society

Place of publication

Daejeon, Korea

Event location

Jeju Island, Korea

Event date

Jan 1, 2013

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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