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Preliminary Analysis of SGTR Accident for an Integral Effect Test Facility, SMART-ITL

[+] Author Affiliations
H. K. Kim, Y. J. Chung, S. H. Kim

Korea Atomic Energy Research Institute, Daejeon, Korea

H. S. Kim

Chungnam National University, Daejeon, Korea

Paper No. IMECE2013-63108, pp. V06BT07A045; 6 pages
  • ASME 2013 International Mechanical Engineering Congress and Exposition
  • Volume 6B: Energy
  • San Diego, California, USA, November 15–21, 2013
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5629-1
  • Copyright © 2013 by ASME


SMART-ITL (system-integrated modular advanced reactor-integral test loop) has been built at Korea Atomic Energy Research Institute (KAERI) in order to validate the safety and performance of SMART. It is an integral effect test facility and its scale is 1/1 in height and 1/49 in volume with respect to SMART plant. The objectives of SMART-ITL are to investigate and understand the integral performance of reactor systems and components and the thermal-hydraulic phenomena occurred in the system during normal, abnormal and emergency conditions, and to verify the system safety during various design basis events of SMART. The integral-effect test data will also be used to validate the related thermal-hydraulic models of the safety analysis code such as TASS/SMR-S, which is used for performance and accident analysis of SMART design.

SMART with a rated thermal power of 330 MWt has been developed at KAERI. SMART is an integral type pressurized water reactor with a mixture of the proven technologies and advanced design features. The enhancement of safety is realized by incorporating inherent safety features and passive safety systems. The licensing has been approved by the Korean nuclear regulatory authority in 2012. TASS/SMR-S code can analyze thermal hydraulic phenomena of SMART in a full range of reactor operating and accident conditions. A steam generator tube rupture (SGTR) accident is one of the safety related design basis events and should be analyzed with thermal hydraulic and radiological viewpoint. A preliminary analysis of an SGTR accident for SMART-ITL was performed using TASS/SMR-S code to setup test procedure.

The thermal-hydraulic analysis for SMART-ITL SGTR accident with the geometrical, thermal-hydraulic parameters and modeling information was performed. The major concern of this analysis was to find the thermal-hydraulic phenomena and maximum leakage amount from a primary to a secondary side caused by an SGTR accident. The result was also compared with the result of SMART SGTR accident analysis. In spite of the different assumptions and scaling, the compared results are reasonable. The characteristics of SMART SGTR accident are well reflected on SMART-ITL. The analysis result of preliminary SMART-ITL SGTR accident estimates the major effects of SMART SGTR accident successfully.

Copyright © 2013 by ASME



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