Methodologies for an improved prediction of the isotopic content in high burnup samples. Application to Vandellos-II reactor core

Martínez, J.S. and Cabellos de Francisco, Oscar Luis and Diez de la Obra, Carlos Javier (2013). Methodologies for an improved prediction of the isotopic content in high burnup samples. Application to Vandellos-II reactor core. "Annals of Nuclear Energy", v. 57 ; pp. 199-208. ISSN 0306-4549. https://doi.org/10.1016/j.anucene.2012.11.034.

Description

Title: Methodologies for an improved prediction of the isotopic content in high burnup samples. Application to Vandellos-II reactor core
Author/s:
  • Martínez, J.S.
  • Cabellos de Francisco, Oscar Luis
  • Diez de la Obra, Carlos Javier
Item Type: Article
Título de Revista/Publicación: Annals of Nuclear Energy
Date: July 2013
ISSN: 0306-4549
Volume: 57
Subjects:
Freetext Keywords: Burnup credit; Isotopic prediction; High burnup; SCALE 6.0; MONTURNS 2.0; Vandellós-II
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

Fuel cycles are designed with the aim of obtaining the highest amount of energy possible. Since higher burnup values are reached, it is necessary to improve our disposal designs, traditionally based on the conservative assumption that they contain fresh fuel. The criticality calculations involved must consider burnup by making the most of the experimental and computational capabilities developed, respectively, to measure and predict the isotopic content of the spent nuclear fuel. These high burnup scenarios encourage a review of the computational tools to find out possible weaknesses in the nuclear data libraries, in the methodologies applied and their applicability range. Experimental measurements of the spent nuclear fuel provide the perfect framework to benchmark the most well-known and established codes, both in the industry and academic research activity. For the present paper, SCALE 6.0/TRITON and MONTEBURNS 2.0 have been chosen to follow the isotopic content of four samples irradiated in the Spanish Vandellós-II pressurized water reactor up to burnup values ranging from 40 GWd/MTU to 75 GWd/MTU. By comparison with the experimental data reported for these samples, we can probe the applicability of these codes to deal with high burnup problems. We have developed new computational tools within MONTENBURNS 2.0. They make possible to handle an irradiation history that includes geometrical and positional changes of the samples within the reactor core. This paper describes the irradiation scenario against which the mentioned codes and our capabilities are to be benchmarked.

More information

Item ID: 25692
DC Identifier: http://oa.upm.es/25692/
OAI Identifier: oai:oa.upm.es:25692
DOI: 10.1016/j.anucene.2012.11.034
Official URL: http://www.sciencedirect.com/science/article/pii/S0306454912004859
Deposited by: Memoria Investigacion
Deposited on: 05 May 2014 18:17
Last Modified: 01 Aug 2015 22:56
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