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Three-Dimensional Numerical Study on Condensation-Conduction-Evaporation Coupled Heat Transfer

[+] Author Affiliations
Chang Lei, Yanning Yang

State Nuclear Power Technology R&D Centre, Beijing, China

Paper No. ICONE20-POWER2012-54612, pp. 501-504; 4 pages
doi:10.1115/ICONE20-POWER2012-54612
From:
  • 2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference
  • Volume 4: Codes, Standards, Licensing, and Regulatory Issues; Fuel Cycle, Radioactive Waste Management and Decommissioning; Computational Fluid Dynamics (CFD) and Coupled Codes; Instrumentation and Controls; Fuels and Combustion, Materials Handling, Emissions; Advanced Energy Systems and Renewables (Wind, Solar, Geothermal); Performance Testing and Performance Test Codes
  • Anaheim, California, USA, July 30–August 3, 2012
  • Conference Sponsors: Nuclear Engineering Division, Power Division
  • ISBN: 978-0-7918-4498-4
  • Copyright © 2012 by ASME

abstract

In passive containment cooling system on AP-series nuclear power plants, condensation-conduction-evaporation coupled heat transfer is crucial in taking the energy from inside of containment to the outside environment. A numerical study on this heat transfer process is presented in this paper. Condensation film on the containment inside surface and cooling water film on the outside surface are described by a liquid-film tracking model. Heat conduction through containment shell is usually modeled to be one dimensional (1-D) in common thermal-hydraulic computer codes. However, heat is always transferred from hoter regions of the shell to the cooler regions in all directions, and this phenomenon becomes more prominent when the containment surface is not fully covered with liquid film. Three dimensional (3-D) heat conduction in containment shell is carefully studied, and the quantified results are compared to that obtained from 1-D model.

Copyright © 2012 by ASME

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