Nuclear Engineering and Technology

  • 제56권3호
  • /
  • Pages.1081-1090
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  • 2024
  • /
  • 1738-5733(pISSN)
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  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
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Numerical analysis of the venturi flowmeter in the liquid lead-bismuth eutectic circuit after long-term operation

  • Zhichao Zhang (College of Nuclear Science and Technology, Harbin Engineering University) ;
  • Rafael Macian-Juan (Department of Energy & Process Engineering, Technical University of Munich) ;
  • Xiang Wang (College of Nuclear Science and Technology, Harbin Engineering University)
  • 투고 : 2023.06.20
  • 심사 : 2024.01.24
  • 발행 : 2024.03.25
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초록

The liquid Lead-bismuth eutectic is used as the coolant for Gen-IV reactor concepts. However, due to its strong corrosive and high operating temperature, it is difficult to accurately measure the flow rate in long-term operating conditions. Venturi flowmeter is a simple structured flowmeter, which plays a very important role in the flow measurement of high-temperature liquid metals, especially since the existing flowmeters are difficult to be competent. It has the advantages of easy maintenance and stable operation. Therefore, it is necessary to study the operating conditions of the venturi flowmeter under high-temperature conditions. This work performs a series of simulations of the fluid-solid interaction between the flow liquid metal and venturi flowmeter with COMSOL software, including the dimensional sensitivity analysis of the venturi flowmeter to explore the most suitable structure and parameters for liquid heavy metal, the sensitivity analysis of the geometric parameters of the venturi tube on the varying conditions. It shows that when the contraction angle of the venturi flowmeter is 33°, the diffusion angle is 13°, the diameter of the throat is 8 mm, and the temperature of the lead-bismuth eutectic is 733.15 K, it is most suitable for the measurement in the lead-bismuth circuit.

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참고문헌

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