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An Advanced Model on Mixed Convection in Passive Containment Cooling System

[+] Author Affiliations
He Zhang, Fenglei Niu

North China Electric Power University, Beijing, China

Paper No. ICONE20-POWER2012-55145, pp. 577-580; 4 pages
  • 2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference
  • Volume 5: Fusion Engineering; Student Paper Competition; Design Basis and Beyond Design Basis Events; Simple and Combined Cycles
  • Anaheim, California, USA, July 30–August 3, 2012
  • Conference Sponsors: Nuclear Engineering Division, Power Division
  • ISBN: 978-0-7918-4499-1
  • Copyright © 2012 by ASME


In order to improve the accuracy of the heat transfer capability evaluation for passive containment cooling system (PCCS) in China’s advanced pressurized reactor (CAP1400), an advanced simulation model is developed based on stratified phenomenon in large enclosures, in which one–dimensional differential equations are used to get temperature and velocity profiles for the ambient fluid. The mixing and heat transfer experiment in a large rectangular enclosure with an injected buoyant jets and a cooled vertical surface is analyzed as an example, which simulates a break flow for passive reactor containment system. The results of the new model have good agreement with that of ANSYS CFX Version 12.1, while the running time of the new model is only about 20% of the time ANSYS CFX takes.

Copyright © 2012 by ASME



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