Smart Materials and Structures · 2017 · 101 citations · 21 references
EngineeringPetroleum EngineeringFlow AssuranceSensorsWell TestingGas SensorsLeak DetectionPressure MeasurementPressure SensorsStrain SensorsGas Leak DetectionLead Zirconate TitanateLeakageLocation AccuracyLocation DeterminationLocation EstimationPipeline Leak DetectionStress Wave Propagation
The negative pressure wave generated by a pipeline leak propagates along the pipe and manifests as hoop‑strain variations along the wall. The study proposes a rapid detection and location method for pipeline leaks using lead zirconate titanate (PZT) sensors. The method employs PZT sensors to capture strain variations caused by the negative pressure wave, enabling leak localization. Experiments on a 55‑meter model pipeline demonstrated that the PZT‑based approach locates leaks within 2 % error and 4 % variance across five controlled points, confirming its accuracy.
In this paper, an innovative method for rapid detection and location determination of pipeline leakage utilizing lead zirconate titanate (PZT) sensors is proposed. The negative pressure wave (NPW) is a stress wave generated by leakage in the pipeline, and propagates along the pipeline from the leakage point to both ends. Thus the NPW is associated with hoop strain variation along the pipe wall. PZT sensors mounted on the pipeline were used to measure the strain variation and allowed accurate (within 2% error) and repeatable location (within 4% variance) of five manually controlled leakage points. Experimental results have verified the effectiveness and the location accuracy for leakage in a 55 meter long model pipeline.
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Xiaoliang Zhao, Huidong Gao, Guangfan Zhang et al. · Smart Materials and Structures · 2007 · 728 citations
Engineering, Aerospace Engineering, Mechanical Engineering +17
Leak Detection in Pipelines using the Damping of Fluid Transients
Xiaojian Wang, Martin F. Lambert, Angus R. Simpson et al. · Journal of Hydraulic Engineering · 2002 · 291 citations · Full text