Structure Analysis and Evaluation of the Ultrasonic Tomography System for Lead-Bismuth Two-Phase Flow

Liu Gangyang; Zhou Wenxiong; Huang Runzhi; Pan Liangming; Li Kang; Tan Xubin

doi:10.13832/j.jnpe.2024.050025

Volume 46 Issue 3

Jun. 2025

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Article Navigation > Nuclear Power Engineering > 2025 > 46(3): 288-294

Liu Gangyang, Zhou Wenxiong, Huang Runzhi, Pan Liangming, Li Kang, Tan Xubin. Structure Analysis and Evaluation of the Ultrasonic Tomography System for Lead-Bismuth Two-Phase Flow[J]. Nuclear Power Engineering, 2025, 46(3): 288-294. doi: 10.13832/j.jnpe.2024.050025

Citation:

Liu Gangyang, Zhou Wenxiong, Huang Runzhi, Pan Liangming, Li Kang, Tan Xubin. Structure Analysis and Evaluation of the Ultrasonic Tomography System for Lead-Bismuth Two-Phase Flow[J]. Nuclear Power Engineering, 2025, 46(3): 288-294. doi: 10.13832/j.jnpe.2024.050025

Citation:

Liu Gangyang, Zhou Wenxiong, Huang Runzhi, Pan Liangming, Li Kang, Tan Xubin. Structure Analysis and Evaluation of the Ultrasonic Tomography System for Lead-Bismuth Two-Phase Flow[J]. Nuclear Power Engineering, 2025, 46(3): 288-294. doi: 10.13832/j.jnpe.2024.050025

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Structure Analysis and Evaluation of the Ultrasonic Tomography System for Lead-Bismuth Two-Phase Flow

doi: 10.13832/j.jnpe.2024.050025

Liu Gangyang^{1, 2
,},
Zhou Wenxiong^{1, 2
,
,},
Huang Runzhi^{1, 2},
Pan Liangming^{1, 2},
Li Kang^{1, 2},
Tan Xubin^{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

Received Date: 2024-05-06
Rev Recd Date: 2024-06-04

Available Online: 2025-06-09

Publish Date: 2025-06-09

Abstract

Abstract

Following steam generator tube rupture (SGTR) accident in a Lead-Bismuth Fast Reactor, the gas-liquid two-phase flow phenomenon emerges within the reactor core. The ultrasonic tomography method for two-phase flow detection exhibits robust anti-interference capabilities. However, conventional ultrasonic sensors become ineffective at high temperatures. Therefore, a dual-modal ultrasonic tomography system based on waveguide rods is proposed. The waveguide rod structure prevents direct contact between the sensor and the high-temperature fluid, employing reflection and transmission methods to reconstruct the two-phase distribution. In combination with numerical simulation methods, an ultrasonic tomography system utilizing a 4 MHz ultrasonic frequency, a 58 mm waveguide rod, and an array of 24 ultrasonic sensors is ultimately determined. The imaging effects of different gas-phase distributions are investigated. The results indicate that, compared to gas-liquid two-phase flows in general, the ultrasonic tomography system exhibits greater advantages in liquid Lead-Bismuth two-phase flows. This system can effectively reconstruct the two-phase distribution with mean square errors within 6% and a minimum image correlation coefficient exceeding 85%.
- Ultrasound,
- Lead-Bismuth,
- Two-phase flow,
- Tomography,
- Waveguide rod

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References(18)

References

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