Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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IMPROVING REGIONAL OVERPOWER PROTECTION TRIP SET POINT VIA CHANNEL OPTIMIZATION

  • Received : 2011.03.03
  • Accepted : 2011.11.23
  • Published : 2012.10.25
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Abstract

In recent years, a new algorithm has been introduced to perform the regional overpower protection (ROP) detector layout optimization for $CANDU^{(R)}$ reactors. This algorithm is called DETPLASA. This algorithm has been shown to successfully come up with a detector layout which meets the target trip set point (TSP) value. Knowing that these ROP detectors are placed in a number of safety channels, one expects that there is an optimal placement of the candidate detectors into these channels. The objective of the present paper is to show that a slight improvement to the TSP value can be realized by optimizing the channelization of these ROP detectors. Depending on the size of the ROP system, based on numerical experiments performed in this study, the range of additional TSP improvement is from 0.16%FP (full power) to 0.56%FP.

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References

  1. M. Levine, L. Blake, E. Attia, "SIMBRASS and Neutron Overpower Analysis," Proc. 22nd Nuclear Simulation Symposium, Ottawa, Canada, November 2002.
  2. A. H. Chung, M. Khanna, "SIMBRASS: a Monte-Carlo Model for the Assessment of the Unavailability of Regional Overpower Trip Systems," Proc. First Annual CNS Conference, Montreal, Canada, June 1980.
  3. C. M. Bailey and F. A. R. Laratta, "Design and Assessment of the Neutron Overpower Trips in the 600 MWe CANDUPHW Reactors," TDAI-315, Atomic Energy of Canada Limited, Mississauga, ON, Canada, 1982.
  4. D. Kastanya, V. Caxaj, "Methodologies for Optimizing ROP Detector Layout for $CANDU^{{\circledR}}$ Reactors," Annals of Nuclear Energy, 38, No.1, pp. 21-31, 2011. https://doi.org/10.1016/j.anucene.2010.08.020
  5. S. Kirkpatrik, C. Gelatt, M. Vecchi, "Optimization by Simulated Annealing," Science, 220, 671-680, 1983. https://doi.org/10.1126/science.220.4598.671
  6. D. Kastanya, V. Caxaj, "Regional Overpower Protection Analysis for CANDU 6 Reactors using ROVER-F Code," Annals of Nuclear Energy, 37, No.1, pp. 28-33, 2010. https://doi.org/10.1016/j.anucene.2009.10.007