Experimental study on leakage monitoring of buried water pipelines based on actively heated optical frequency domain reflection technology

IF 4.9 2区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Thermal Sciences Pub Date : 2025-01-10 DOI:10.1016/j.ijthermalsci.2025.109685

Lin Cheng , Yuheng Zhang , Zhaohan Wang , Yongkang Sun , Chunhui Ma , Zengguang Xu , Jiang Hu

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引用次数: 0

Abstract

The leakage of the buried water pipelines will not only cause waste of water resources, but also cause secondary disasters that will endanger the safety of life and property of residents along the pipeline. Therefore, leakage monitoring is crucial for buried water pipelines. In this study, based on the active heated fibre optic optical frequency domain reflectometry (AHFO-OFDR), the buried water pipelines leakage monitoring test considering the influence of leakage size, flow velocity and other factors was carried out, and the corresponding finite element numerical model was established to verify the reliability of the test results. The research results show that the AHFO-OFDR technology can realize the accurate positioning of the pipeline leakage point and the leakage quantity and leakage velocity can be roughly judged. The relevant conclusions are consistent with the numerical simulation results, so it is considered that the experimental results obtained by AHFO-OFDR have high accuracy.

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来源期刊

International Journal of Thermal Sciences 工程技术-工程：机械

CiteScore

8.10

自引率

11.10%

发文量

531

审稿时长

55 days

期刊介绍： The International Journal of Thermal Sciences is a journal devoted to the publication of fundamental studies on the physics of transfer processes in general, with an emphasis on thermal aspects and also applied research on various processes, energy systems and the environment. Articles are published in English and French, and are subject to peer review. The fundamental subjects considered within the scope of the journal are: * Heat and relevant mass transfer at all scales (nano, micro and macro) and in all types of material (heterogeneous, composites, biological,...) and fluid flow * Forced, natural or mixed convection in reactive or non-reactive media * Single or multi–phase fluid flow with or without phase change * Near–and far–field radiative heat transfer * Combined modes of heat transfer in complex systems (for example, plasmas, biological, geological,...) * Multiscale modelling The applied research topics include: * Heat exchangers, heat pipes, cooling processes * Transport phenomena taking place in industrial processes (chemical, food and agricultural, metallurgical, space and aeronautical, automobile industries) * Nano–and micro–technology for energy, space, biosystems and devices * Heat transport analysis in advanced systems * Impact of energy–related processes on environment, and emerging energy systems The study of thermophysical properties of materials and fluids, thermal measurement techniques, inverse methods, and the developments of experimental methods are within the scope of the International Journal of Thermal Sciences which also covers the modelling, and numerical methods applied to thermal transfer.