Stochastic resonance enhancement for leak detection in pipelines using fluid transients and convolutional neural networks

J Bohorquez, MF Lambert, B Alexander… - Journal of Water …, 2022 - ascelibrary.org
Water losses through leakage represent a significant problem for asset management in
water distribution systems. The interpretation of fluid transient pressure waves after the …

Leak localization in looped pipe networks based on a factorized transient wave model: Theoretical framework

TC Che, X Wang, MS Ghidaoui - Water Resources Research, 2022 - Wiley Online Library
Urban water distribution systems are often made of loops to increase redundancy and
improve reliability. The inherent feature of multipath wave propagation in looped networks …

Machine learning–assisted model for leak detection in water distribution networks using hydraulic transient flows

AH Ayati, A Haghighi, HR Ghafouri - Journal of Water Resources …, 2022 - ascelibrary.org
This study introduces a novel hybrid leak detection method based on machine learning (ML)
and hydraulic transient modeling for pipe networks. First, the transient hydraulic simulation …

Spectral transient-based multiple leakage identification in water pipelines: An efficient hybrid gradient-metaheuristic optimization

A Keramat, I Ahmadianfar, HF Duan, Q Hou - Expert Systems with …, 2023 - Elsevier
In transient-based leak detection (TBLD), the localization of multiple leaks from the
measurement data of a few stations is challenging. Recent studies have made …

Multiobjective wrapper sampling design for leak detection of pipe networks based on machine learning and transient methods

AH Ayati, A Haghighi - Journal of Water Resources Planning and …, 2023 - ascelibrary.org
This study introduces a novel sampling design (SD) method for hybrid Machine
Learning/Transient-Based (ML/TB) leak detection of pipe networks. The proposed technique …

Linear phase detector for detecting multiple leaks in water pipes

W Zeng, N Do, M Lambert, J Gong, B Cazzolato… - Applied Acoustics, 2023 - Elsevier
Acoustic signals measured at either side of a leak have been widely used for locating leaks
in buried water distribution pipes. Conventional acoustic leak localization techniques (eg …

Pipe crack early warning for burst prevention by permanent acoustic noise level monitoring in smart water networks

C Zhang, MF Lambert, ML Stephens, J Gong… - Urban Water …, 2020 - Taylor & Francis
Managing pipe breaks in water supply networks has been a challenge for water utilities
around the world. In order to transform from reactive to proactive management of pipe …

Anomaly detection and classification in water distribution networks integrated with hourly nodal water demand forecasting models and feature extraction technique

C Jian, J Gao, Y Xu - Journal of Water Resources Planning and …, 2022 - ascelibrary.org
Effective detection and classification of abnormalities, such as pipe bursts, leakage, illegal
water use, and sensor failures, are critical for assisting water utilities in decision making …

Calibration of frequency-dependent wave speed and attenuation in water pipes using a dual-Sensor and paired-IRF approach

JS Lee, W Zeng, MF Lambert, J Gong - Journal of Water Resources …, 2024 - ascelibrary.org
The propagation of pressure waves in water pipes is frequency dependent, which leads to
these waves experiencing a frequency-dependent wave speed and attenuation, resulting in …