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Experimental Investigation of Steam Condensation Phenomenon in a Multi-Hole Sparger

[+] Author Affiliations
C. K. Park, C. H. Song, H. G. Jun, Y. J. Yoon

Korea Atomic Energy Research Institute, Daejeon, Korea

Paper No. PVP2005-71209, pp. 829-836; 8 pages
  • ASME 2005 Pressure Vessels and Piping Conference
  • Volume 4: Fluid Structure Interaction
  • Denver, Colorado, USA, July 17–21, 2005
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4189-8 | eISBN: 0-7918-3763-7
  • Copyright © 2005 by ASME


A series of steam condensation tests using a simplified version of the prototypic unit cell sparger that will be used in an APR1400 has been performed. The range of the steam mass fluxes for the condensation tests was selected to define the transition from a condensation oscillation regime to a stable condensation regime. The test results show that the dynamic load at the quench tank increases as the water temperature increases up to 80 °C and that it decreases rapidly at higher temperatures. In addition, the dominant frequency of the condensation induced pressure wave increases up to 60 °C and then it decreases very steeply. The results also show the average local-to-bulk temperature difference reaches up to 8.4 °C and the hole pattern used in the unit cell sparger can be used up to the local saturation temperature without inducing an unstable condensation phenomenon.

Copyright © 2005 by ASME
Topics: Condensation , Steam



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