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Preliminary safety analysis of LOCAs in one EU DEMO HCPB blanket module [in press]

Jin, Xue Zhou

Safety analysis for the design basis accident (DBA) is essential to support DEMO blanket concept design. It is necessary to study the pressure behaviour in the blanket and the connected systems during the loss of coolant accident (LOCA) in a blanket module, as well as the temperature evolution in the coolant flow and the associated structures. For the Helium Cooled Pebble Bed (HCPB) blanket concept (version 2014) three representative accidental sequences of LOCA have been simulated using system code MELCOR 1.8.6 for fusion. The LOCA is identified to be the failure of cooling channels in the stiffening grid, in the FW or in the breeder unit. Simulation results are discussed in this paper.

Zugehörige Institution(en) am KIT Institut für Neutronenphysik und Reaktortechnik (INR)
Publikationstyp Zeitschriftenaufsatz
Jahr 2017
Sprache Englisch
Identifikator DOI: 10.1016/j.fusengdes.2017.03.082
ISSN: 0920-3796, 1873-7196
KITopen ID: 1000069104
HGF-Programm 31.03.05; LK 01
Erschienen in Fusion engineering and design
Schlagworte DEMO safety, HCPB, LOCA, MELCOR
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