Feasibility Study on Special-shaped Impedance Void Meter for Measuring Void Fraction in Helical Cruciform Rod Bundle Channel

Liu Hao; Ma Zaiyong; Lian Qiang; Liu Gangyang; Tan Xubin; Zhang Luteng; Zhou Wenxiong; Pan Liangming

doi:10.13832/j.jnpe.2024.070059

Volume 46 Issue 4

Aug. 2025

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Article Navigation > Nuclear Power Engineering > 2025 > 46(4): 85-93

Liu Hao, Ma Zaiyong, Lian Qiang, Liu Gangyang, Tan Xubin, Zhang Luteng, Zhou Wenxiong, Pan Liangming. Feasibility Study on Special-shaped Impedance Void Meter for Measuring Void Fraction in Helical Cruciform Rod Bundle Channel[J]. Nuclear Power Engineering, 2025, 46(4): 85-93. doi: 10.13832/j.jnpe.2024.070059

Citation:

Liu Hao, Ma Zaiyong, Lian Qiang, Liu Gangyang, Tan Xubin, Zhang Luteng, Zhou Wenxiong, Pan Liangming. Feasibility Study on Special-shaped Impedance Void Meter for Measuring Void Fraction in Helical Cruciform Rod Bundle Channel[J]. Nuclear Power Engineering, 2025, 46(4): 85-93. doi: 10.13832/j.jnpe.2024.070059

Citation:

Liu Hao, Ma Zaiyong, Lian Qiang, Liu Gangyang, Tan Xubin, Zhang Luteng, Zhou Wenxiong, Pan Liangming. Feasibility Study on Special-shaped Impedance Void Meter for Measuring Void Fraction in Helical Cruciform Rod Bundle Channel[J]. Nuclear Power Engineering, 2025, 46(4): 85-93. doi: 10.13832/j.jnpe.2024.070059

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Feasibility Study on Special-shaped Impedance Void Meter for Measuring Void Fraction in Helical Cruciform Rod Bundle Channel

doi: 10.13832/j.jnpe.2024.070059

Liu Hao^{1, 2
,},
Ma Zaiyong^{1, 2},
Lian Qiang^{1, 2, 3
,
,},
Liu Gangyang^{1, 2},
Tan Xubin^{1, 2},
Zhang Luteng^{1, 2},
Zhou Wenxiong^{1, 2},
Pan Liangming^{1, 2}

1.
Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing, 400044, China
2.
Department of Nuclear Engineering and Technology, Chongqing University, Chongqing, 400044, China
3.
Postdoctoral Research Station of Power Engineering and Engineering Thermophysics, Chongqing University, Chongqing, 400044, China

Received Date: 2024-07-31
Rev Recd Date: 2024-09-24
Publish Date: 2025-08-15

Abstract

Abstract

Impedance void meter is an important tool for measuring the average void fraction in two-phase flows. However, due to the highly heterogeneous nature of the helical cruciform rod bundle channel, the impedance void meter has uneven electric field distribution, which poses certain challenges to measuring void fraction. This paper verifies the feasibility of using a special-shaped impedance void meter to measure void fraction in a helical cruciform rod bundle channel through simulations and experiments. The results show that at low void fraction, the dimensionless voltage at the receiving electrode increases monotonically with increasing void fraction, indicating that the special-shaped impedance void meter is subject to little influence of helical cruciform structure and can be calibrated at low void fraction. The overall average error of the special-shaped impedance void meter does not exceed 24% according to theoretical model calculations. The magnitude of the helical pitch exerts little influence on the measurement of the void fraction, and the geometry of the electrode within the void meter across various twist angle sections does not alter the monotonic relationship between dimensionless voltage and void fraction. This suggests that utilizing a special-shaped impedance void meter for measuring void fraction is feasible.
- Impedance void meter,
- Special shape,
- Helical cruciform fuel,
- Two-phase flow,
- Void fraction

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References(27)

References

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