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TECHNICAL PAPERS

Measurement of Pressure Drop in a Full-Scale Fuel Assembly of a Liquid Metal Reactor

[+] Author and Article Information
Seok Ki Choi, Il Kon Choi, Ho Yun Nam, Jong Hyeun Choi

Korea Atomic Energy Research Institute, KALIMER Technology Development Team, Taejon, 305-353, Korea

Hoon Ki Choi

Changwon National University, Mechanical Engineering Department, Gyeongnam, 641-773, Korea

J. Pressure Vessel Technol 125(2), 233-238 (May 05, 2003) (6 pages) doi:10.1115/1.1565076 History: Received November 19, 2002; Revised February 03, 2003; Online May 05, 2003
Copyright © 2003 by ASME
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References

Novendstern,  E. H., 1972, “Turbulent Flow Pressure Drop Model for Fuel Rod Assemblies Utilizing a Helical Wire-Wrap Spacer System,” Nucl. Eng. Des., 22, pp. 19–27.
Rehme,  K., 1972, “Pressure Drop Correlations for Fuel Element Spacers,” Nucl. Technol., 17, pp. 15–23.
Engel,  F. C., Markley,  R. A., and Bishop,  A. A., 1979, “Laminar, Transition, and Turbulent Parallel Flow Pressure Drop Across Wire-Wrap-Spaced Rod Bundles,” Nucl. Sci. Eng., 69, pp. 290–296.
Cheng,  S. K., and Todreas,  N. E., 1986, “Hydrodynamic Models and Correlations for Bare and Wire-Wrapped Hexagonal Rod Bundles-Bundle Friction Factors, Subchannel Friction Factors and Mixing Parameters,” Nucl. Eng. Des., 92, pp. 227–251.

Figures

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Schematic diagram of experimental facility—(1) water tank, (2) pump, (3) damper, (4) flow manifold, (5) test section
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Test section and locations of pressure taps
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Cross-sectional view of the fuel assembly and typical shape of the wire-wrapped fuel rod
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Pressure drop in the inlet orifice (ΔP1)
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Pressure drop in the fuel assembly inlet (ΔP2)
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Pressure drop in the wire-wrapped fuel assembly (ΔP3)
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Pressure rise in the fuel assembly outlet (ΔP4)
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Pressure drop in the fuel assembly upper region (ΔP5)
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Relative magnitude of pressure drop in the fuel assembly
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Comparison of Novendstern’s correlation with measured data
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Comparison of Rehme’s correlation with measured data
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Comparison of Engel et al.’s correlation with measured data
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Comparison of Cheng and Todreas’s correlation with measured data

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