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Performance of smart pressure transmitters under radiation ageing environment in NPPs

Author

Listed:
  • Yashasvi Chauhan

    (National Institute of Technology Delhi)

  • N. B. Shrestha

    (Bhabha Atomic Research Centre)

  • T. V. Santhosh

    (Bhabha Atomic Research Centre)

  • Vivek Shrivastava

    (National Institute of Technology Delhi)

  • P. K. Ramteke

    (Bhabha Atomic Research Centre)

  • Gopika Vinod

    (Bhabha Atomic Research Centre)

Abstract

This paper presents the performance assessment of smart pressure transmitters subjected to accelerated radiation environment. Two transmitters were subjected to accelerated radiation ageing with a cumulative dose of 73 krad and 47 krad respectively at a dose rate of 1.878 k Gy/hr using cobalt-60 gamma radiation source. Investigation was mainly concerned about studying the performance parameters such as calibration, insulation resistance and power supply variation effects. It was observed during testing that one of the transmitters failed within 25 min of radiation aging. It was also evident that the sensor part of the transmitter was highly sensitive to gamma radiation which was found to be a major cause for change in the transmitter drift. A significant degradation was also observed in O-rings due to radiation ageing. A microscopic examination of hardware part of the circuit board was carried out and found significant degradation in the equipment circuit board which concludes to poor workmanship, manufacturing process and radiation effect.

Suggested Citation

  • Yashasvi Chauhan & N. B. Shrestha & T. V. Santhosh & Vivek Shrivastava & P. K. Ramteke & Gopika Vinod, 2020. "Performance of smart pressure transmitters under radiation ageing environment in NPPs," International Journal of System Assurance Engineering and Management, Springer;The Society for Reliability, Engineering Quality and Operations Management (SREQOM),India, and Division of Operation and Maintenance, Lulea University of Technology, Sweden, vol. 11(2), pages 282-288, July.
    • Handle: RePEc:spr:ijsaem:v:11:y:2020:i:2:d:10.1007_s13198-020-01014-6
    DOI: 10.1007/s13198-020-01014-6
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    References listed on IDEAS

    as
    1. Yernagu Satheesh Kumar Reddy & K. V. R. B. Prasad & Gopika Vinod & N. B. Shrestha, 2017. "Functional testing and performance assessment of smart pressure transmitters used in NPPs," International Journal of System Assurance Engineering and Management, Springer;The Society for Reliability, Engineering Quality and Operations Management (SREQOM),India, and Division of Operation and Maintenance, Lulea University of Technology, Sweden, vol. 8(2), pages 765-772, November.
    2. Brissaud, Florent & Barros, Anne & Bérenguer, Christophe & Charpentier, Dominique, 2011. "Reliability analysis for new technology-based transmitters," Reliability Engineering and System Safety, Elsevier, vol. 96(2), pages 299-313.
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