On the Extension of the Analytic Nodal Diffusion Solver ANDES to Sodium Fast Reactors

Ochoa Valero, Raquel and Herrero Carrascosa, José Javier and García Herranz, Nuria (2011). On the Extension of the Analytic Nodal Diffusion Solver ANDES to Sodium Fast Reactors. In: "International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M&C 2011", 08/05/2011 - 12/05/2011, Rio de Janeiro, Brasil. ISBN 978-85-63688-00-2.

Description

Title: On the Extension of the Analytic Nodal Diffusion Solver ANDES to Sodium Fast Reactors
Author/s:
  • Ochoa Valero, Raquel
  • Herrero Carrascosa, José Javier
  • García Herranz, Nuria
Item Type: Presentation at Congress or Conference (Article)
Event Title: International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M&C 2011
Event Dates: 08/05/2011 - 12/05/2011
Event Location: Rio de Janeiro, Brasil
Title of Book: Proceedings of the International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M&C 2011
Date: 2011
ISBN: 978-85-63688-00-2
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

Within the framework of the Collaborative Project for a European Sodium Fast Reactor, the reactor physics group at UPM is working on the extension of its in-house multi-scale advanced deterministic code COBAYA3 to Sodium Fast Reactors (SFR). COBAYA3 is a 3D multigroup neutron kinetics diffusion code that can be used either as a pin-by-pin code or as a stand-alone nodal code by using the analytic nodal diffusion solver ANDES. It is coupled with thermalhydraulics codes such as COBRA-TF and FLICA, allowing transient analysis of LWR at both fine-mesh and coarse-mesh scales. In order to enable also 3D pin-by-pin and nodal coupled NK-TH simulations of SFR, different developments are in progress. This paper presents the first steps towards the application of COBAYA3 to this type of reactors. ANDES solver, already extended to triangular-Z geometry, has been applied to fast reactor steady-state calculations. The required cross section libraries were generated with ERANOS code for several configurations. The limitations encountered in the application of the Analytic Coarse Mesh Finite Difference (ACMFD) method –implemented inside ANDES– to fast reactors are presented and the sensitivity of the method when using a high number of energy groups is studied. ANDES performance is assessed by comparison with the results provided by ERANOS, using a mini-core model in 33 energy groups. Furthermore, a benchmark from the NEA for a small 3D FBR in hexagonal-Z geometry and 4 energy groups is also employed to verify the behavior of the code with few energy groups.

More information

Item ID: 11963
DC Identifier: http://oa.upm.es/11963/
OAI Identifier: oai:oa.upm.es:11963
Deposited by: Memoria Investigacion
Deposited on: 18 Dec 2012 17:55
Last Modified: 21 Apr 2016 11:09
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