Proceedings of the Korean Nuclear Society Conference (한국원자력학회:학술대회논문집)

Korean Nuclear Society (한국원자력학회)
권호 표지

Hydraulic Characteristics of HANARO Fuel Bundles

  • Cho, S. (Korea Automic Energy Research Institute) ;
  • Chung, H.J. (Korea Automic Energy Research Institute) ;
  • Chun, S.Y. (Korea Automic Energy Research Institute) ;
  • Yang, S.K. (Korea Automic Energy Research Institute) ;
  • Chung, M.K. (Korea Automic Energy Research Institute)
  • Published : 1997.10.01
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Abstract

This paper presents the hydraulic characteristics measured by using LDV(Laser Doppler Velocimetry) in subchannels of a HANARO, KAERI research reactor, fuel bundle. The fuel bundle consists of 18 axially finned rods with 3 spacer grids, which are arranged in cylindrical configuration. The effects of the spacer grids on the turbulent flow were investigated by the experimental results. Pressure drops fer each component of the fuel bundle were measured, and the friction factors of fuel bundle and loss coefficients for the spacer grids were estimated from the measured pressure drops. Implications regard ins the turbulent thermal mixing were discussed. Vibration test results measured by using laser vibrometer were presented.

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