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Identification of LOFA precursors in ITER superconducting magnet cryogenic cooling circuit

Author

Listed:
  • Destino, V.
  • Bonifetto, R.
  • Maio, F. Di
  • Pedroni, N.
  • Zanino, R.
  • Zio, E.

Abstract

In the International Thermonuclear Experimental Reactor, plasma is magnetically confined with Superconductive Magnets (SMs) that must be maintained at cryogenic temperature by a Superconducting Magnet Cryogenic Cooling Circuit (SMCCC). To guarantee cooling, Loss-Of-Flow Accidents (LOFAs) in the SMCCC are to be avoided. In this work, an approach to identify LOFA precursors (i.e., those component failures leading to a LOFA) is presented. The approach is based on a Spectral Clustering (SC) method using the Fuzzy C-Means (FCM) algorithm and is applied to the SMCCC of a single module of the ITER Central Solenoid (CS).

Suggested Citation

  • Destino, V. & Bonifetto, R. & Maio, F. Di & Pedroni, N. & Zanino, R. & Zio, E., 2021. "Identification of LOFA precursors in ITER superconducting magnet cryogenic cooling circuit," Reliability Engineering and System Safety, Elsevier, vol. 209(C).
    • Handle: RePEc:eee:reensy:v:209:y:2021:i:c:s095183202030911x
    DOI: 10.1016/j.ress.2020.107426
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    References listed on IDEAS

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    1. Bellaera, R. & Bonifetto, R. & Di Maio, F. & Pedroni, N. & Savoldi, L. & Zanino, R. & Zio, E., 2020. "Integrated deterministic and probabilistic safety assessment of a superconducting magnet cryogenic cooling circuit for nuclear fusion applications," Reliability Engineering and System Safety, Elsevier, vol. 201(C).
    2. Y. Wu & Z. Chen & L. Hu & M. Jin & Y. Li & J. Jiang & J. Yu & C. Alejaldre & E. Stevens & K. Kim & D. Maisonnier & A. Kalashnikov & K. Tobita & D. Jackson & D. Perrault, 2016. "Identification of safety gaps for fusion demonstration reactors," Nature Energy, Nature, vol. 1(12), pages 1-11, December.
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