Development of Mitsubishi High Thermal Performance Grid : CFD Applicability for Thermal Hydraulic Design(Special Issue on International Conference on Power and Energy System)

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概要

• 論文の詳細を見る

• Mitsubishi has developed a new zircalloy grid spacer for PWR fuel with higher thermal performance. Computational Fluid Dynamics (CFD) evaluation method has been applied for designing of the new lower pressure loss and higher Departure from Nucleate Boiling (DNB) benefit grid spacer. Reduction of pressure loss of grid structures has been examined by CFD. Also, CFD has been developed as a design tool to predict the coolant mixing ability of vane structures, which is to compare the relative peak spot temperatures around fuel rods at the same heat flux condition. Prototype grids were manufactured and several tests, which were pressure loss measurements, cross-flow measurements and freon DNB tests, were conducted to verify CFD predictions. It is concluded that the applicability of the CFD evaluation method for the thermal hydraulic design of the grid is confirmed.

• 一般社団法人日本機械学会の論文
• 2002-08-15

著者

• IKEDA Kazuo

  Nuclear Development Corporation

• Ikeda Kazuo

  Nuclear Dev. Corp.

• Hoshi Masaya

  Mitsubishi Heavy Industries Ltd

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• ICONE11-36317 VOID DISTRIBUTION ANALYSIS WITH HIGH-SPEED X-RAY CT SCANNER FOR DESIGN OF PWR GRID SPACER
• ICONE11-36087 DEVELOPMENT OF CFD ANALYSIS TO ESTIMATE FLOW BEHAVIOR OF PWR GRID SPACER
• Flow Characteristics in Spacer Grids Measured by Rod-embedded Fiber Laser Doppler Velocimetry
• Development of Mitsubishi High Thermal Performance Grid : CFD Applicability for Thermal Hydraulic Design(Special Issue on International Conference on Power and Energy System)

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