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Automated parametric neutronics analysis of the Helium Cooled Pebble Bed breeder blanket with Be₁₂Ti

Shimwell, J.; Lu, L.; Qiu, Y.; Pereslavtsev, P.; Häußler, A.; Hernández, F.; Zeile, C.; Eade, T.; Spagnuolo, G. A.; McIntosh, S.; Packer, L.; Barrett, T.

The Helium Cooled Pebble Bed (HCPB) breeder blanket is being developed as part of the European Fusion Programme. Part of the programme is to investigate blanket designs relevant for future demonstration fusion power plants. This paper presents neutronics analyses of the HCPB with an alternative neutron multiplier, Be12Ti which is incorporated into the design, replacing the current Be multiplier. A parameter study was performed for a range of geometries to identify the optimal heights of the lithium ceramic and neutron multiplier pebble beds. Automated creation of CAD models followed by conversion to constructive solid geometry (CSG) and unstructured mesh (UM) geometry allows the models to be useful for both neutronics simulations and engineering simulations. In this neutronics study simulations were performed using MCNP 6.1 to find the tritium breeding ratio, energy multiplication and the volumetric heat loads of different blanket designs. Combinations of geometry parameters and material choices that resulted in adequate TBR values were identified and will be further investigated with automated engineering simulations. This paper provides insight, supported by neutronics analysis, on the validity of the design and comments on some of the potential advantages and disadvantages of using Be12Ti in the Helium Cooled Pebble Bed (HCPB) breeder blanket. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000067570
Veröffentlicht am 19.11.2018
DOI: 10.1016/j.fusengdes.2017.01.004
Zitationen: 1
Web of Science
Zitationen: 1
Zugehörige Institution(en) am KIT Institut für Neutronenphysik und Reaktortechnik (INR)
Publikationstyp Zeitschriftenaufsatz
Jahr 2017
Sprache Englisch
Identifikator ISSN: 0920-3796, 1873-7196
KITopen-ID: 1000067570
HGF-Programm 31.03.08 (POF III, LK 01)
Erschienen in Fusion engineering and design
Band 124
Seiten 940-943
Schlagworte Fusion, Breeder blanket, Neutronics, Volumetric heating, HCPB, Coupled, Parametric, CAD
Nachgewiesen in Web of Science
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