Author(s): Pan Bin; Duan Huanfeng; Che Tongchuan; Keramat Alireza; Wang Manli; Wang Zhaohui; Zhu Chunguang

Linked Author(s): Huan-Feng Duan

Keywords: Leakage detection; Transient-based method; Time domain analysis; Forward-backward transient analysis

Abstract: Our previous study has developed the forward-backward transient analysis for efficient leak/burst localization. While this technique has been adapted for identifying defects in tree-shape pipe networks, its application to looped pipe networks remains challenging. This difficulty arises from complex multiple wave travel paths characteristics of the looped pipe networks. To overcome this, it is essential to understand the transient behavior within each primary pipe loop of the pipe network to facilitate the continuation of the transient analysis in such systems. This paper focuses on refining the forward-backward transient analysis to enhance leak detection capabilities in looped pipe networks. The key strategy involves using additional pressure and discharge sensors so as to enable the transformation of a looped pipe system into an equivalent tree-shaped configuration. Then by using calculation order, the intact pipes can be gradually excluded, leading to the identification of the compromised pipe. Numerical cases show that in contrast to the traditional inverse transient analysis, the forward-backward transient analysis does not rely on optimization, so it is expected to have a high efficiency in leak detection. Finally, the findings and conclusions of this study are summarized at the end of the paper.

DOI: https://doi.org/10.64697/HIC2024_P431

Year: 2024