Steps Ahead in the Few-Group CRoss-Section Library Generation at the Pin Level

Sánchez-Cervera Huerta, Santiago and Herrero Carrascosa, José Javier and Petrov, N. (2011). Steps Ahead in the Few-Group CRoss-Section Library Generation at the Pin Level. In: "21st SYMPOSIUM of AER on VVER Reactor Physics and Reactor Safety, AER-2011", 19/09/2011 - 23/09/2011, Dresden, Alemania. pp. 30-35.

Description

Title: Steps Ahead in the Few-Group CRoss-Section Library Generation at the Pin Level
Author/s:
  • Sánchez-Cervera Huerta, Santiago
  • Herrero Carrascosa, José Javier
  • Petrov, N.
Item Type: Presentation at Congress or Conference (Article)
Event Title: 21st SYMPOSIUM of AER on VVER Reactor Physics and Reactor Safety, AER-2011
Event Dates: 19/09/2011 - 23/09/2011
Event Location: Dresden, Alemania
Title of Book: Proceedings of the 21st SYMPOSIUM of AER on VVER Reactor Physics and Reactor Safety, AER-2011
Date: 2011
Subjects:
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Nuclear [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

There exists an interest in performing pin-by-pin calculations coupled with thermal hydraulics so as to improve the accuracy of nuclear reactor analysis. In the framework of the EU NURISP project, INRNE and UPM have generated an experimental version of a few group diffusion cross sections library with discontinuity factors intended for VVER analysis at the pin level with the COBAYA3 code. The transport code APOLLO2 was used to perform the branching calculations. As a first proof of principle the library was created for fresh fuel and covers almost the full parameter space of steady state and transient conditions. The main objective is to test the calculation schemes and post-processing procedures, including multi-pin branching calculations. Two library options are being studied: one based on linear table interpolation and another one using a functional fitting of the cross sections. The libraries generated with APOLLO2 have been tested with the pin-by-pin diffusion model in COBAYA3 including discontinuity factors; first comparing 2D results against the APOLLO2 reference solutions and afterwards using the libraries to compute a 3D assembly problem coupled with a simplified thermal-hydraulic model.

More information

Item ID: 11968
DC Identifier: http://oa.upm.es/11968/
OAI Identifier: oai:oa.upm.es:11968
Official URL: http://www.hzdr.de/db/Cms?pOid=32810&pNid=1296
Deposited by: Memoria Investigacion
Deposited on: 20 Sep 2012 09:57
Last Modified: 21 Apr 2016 11:09
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