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A Novel Ultrasonic Leak Detection System in Nuclear Power Plants Using Rigid Guide Tubes with FCOG and SNR.

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A new nuclear reactor leak detection system uses a rigid guide tube and advanced signal analysis to improve sensitivity and accuracy. This method enhances early detection and localization, boosting reactor safety and reducing operational costs.

Keywords:
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Area of Science:

  • Nuclear Engineering
  • Materials Science
  • Acoustics

Background:

  • Nuclear reactor coolant system integrity is paramount for safety.
  • Traditional leak detection methods have limitations in sensitivity, speed, and localization.
  • Complex piping in nuclear facilities complicates early and accurate leak identification.

Purpose of the Study:

  • To introduce a novel leak detection approach for nuclear reactor coolant systems.
  • To enhance the sensitivity, accuracy, and localization capabilities of leak detection.
  • To improve nuclear power plant safety and operational efficiency.

Main Methods:

  • Integration of a rigid guide tube within the insulation layer of coolant pipes.
  • Application of an advanced detection criterion using Frequency Center of Gravity shifts.
  • Utilizing Signal-to-Noise Ratio analysis for robust ultrasonic signal interpretation.

Main Results:

  • The dual-method strategy significantly enhances leak detection sensitivity and accuracy.
  • The rigid guide tube provides a stable ultrasonic signal transmission path.
  • The system demonstrates effectiveness in detecting minor leaks and improving localization.

Conclusions:

  • The proposed system offers a significant advancement over existing leak detection technologies.
  • This approach contributes to enhanced reactor safety, reduced downtime, and lower operational costs.
  • Further optimization using machine learning is recommended for diverse reactor environments.