The Liquid Injection Shutdown System (LISS) is a safety system in the CANDU™-type reactor to provide rapid reactor shutdown by automatically injecting a neutron absorbing liquid (“poison”), via injection nozzles, into the moderator in the calandria. The poison distribution in the moderator plays a significant role in the shutdown performance. The Advanced CANDU Reactor (ACR-1000™) is a Generation III+ type reactor as an evolutionary extension of the proven CANDU-6 reactor. The basic design concept of the CANDU-6 LISS is adopted for the ACR-1000. The injection nozzle design has been modified to suit the ACR-1000 reactor core configuration. In this study, a Computational Fluid Dynamics (CFD) model was developed using the ANSYS-CFX software to examine the poison injection characteristics in the ACR-1000 design. The effects of calandria tubes on the poison jet growth and poison distribution in the reactor core were discussed.
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16th International Conference on Nuclear Engineering
May 11–15, 2008
Orlando, Florida, USA
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
0-7918-4815-9
PROCEEDINGS PAPER
CFD Modelling of Liquid Poison Injection in ACR-1000 Shutdown System
F. Song,
F. Song
Atomic Energy of Canada Limited, Mississauga, ON, Canada
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R. Noghrehkar,
R. Noghrehkar
Atomic Energy of Canada Limited, Mississauga, ON, Canada
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K. F. Hau
K. F. Hau
Atomic Energy of Canada Limited, Mississauga, ON, Canada
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F. Song
Atomic Energy of Canada Limited, Mississauga, ON, Canada
R. Noghrehkar
Atomic Energy of Canada Limited, Mississauga, ON, Canada
K. F. Hau
Atomic Energy of Canada Limited, Mississauga, ON, Canada
Paper No:
ICONE16-48669, pp. 491-496; 6 pages
Published Online:
June 24, 2009
Citation
Song, F, Noghrehkar, R, & Hau, KF. "CFD Modelling of Liquid Poison Injection in ACR-1000 Shutdown System." Proceedings of the 16th International Conference on Nuclear Engineering. Volume 2: Fuel Cycle and High Level Waste Management; Computational Fluid Dynamics, Neutronics Methods and Coupled Codes; Student Paper Competition. Orlando, Florida, USA. May 11–15, 2008. pp. 491-496. ASME. https://doi.org/10.1115/ICONE16-48669
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