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Research on Impact of Pressurizer Heater Block on SGTR Overfill Analysis

[+] Author Affiliations
Liu Lixin

SNERDI, Shanghai, China

Paper No. ICONE25-66479, pp. V006T08A033; 5 pages
  • 2017 25th International Conference on Nuclear Engineering
  • Volume 6: Thermal-Hydraulics
  • Shanghai, China, July 2–6, 2017
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-5784-7
  • Copyright © 2017 by ASME


Steam generator overfill due to steam generator tube rupture have been analyzed for CAP1400 plant, in which two cases were simulated, including pressurizer heater switching off available and unavailable under low pressurizer water level. The results indicate that it has a certain margin to steam generator (SG) overfill for the ruptured steam generator under steam generator tube rupture (SGTR) accident. Analysis results have also shown that the SG overfill margin will be slightly decreased in case of pressurizer heater swiching off unavailable, however, the impact is not significant.

Copyright © 2017 by ASME
Topics: Accidents , Boilers , Rupture , Water



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