Thermo-hydraulic analysis of the windowless target system
Caricamento...
Data
2008-08
Autori
Bianchi, Fosco
Ferri, Roberta
Moreau, Vincent
Titolo del periodico
ISSN
Titolo del volume
Editore
Elsevier
Abstract
The target system, whose function is to supply an external neutron source to a subcritical core in order to sustain the neutron chain reaction, is
the most critical part of an ADS being subject to severe thermo-mechanical loading and material damage due to accelerator protons and fission
neutrons.
In order to reduce the material damage and to increase the life of the target system a windowless option was chosen in the framework of the
European PDS-XADS project as reference configuration for the experimental ADS cooled by lead–bismuth eutectic alloy.
This document deals with the results of the thermo-hydraulic analysis performed with STAR-CD and RELAP5 codes to assess the behaviour of
the windowless target system during off-normal operating conditions. It also reports a description of modifications properly implemented in the
codes for studying this kind of plant.
The windowless target system shows a satisfactory thermo-hydraulic behaviour for the analysed accidents, except for the loss of both pumps
without proton beam shut-off and for the beam trips lasting more than 1 s.
Descrizione
Keywords
accelerator driven system , long-lived fission products , target system , eXperimental accelerator driven system