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http://dx.doi.org/10.11001/jksww.2017.31.5.459

Development of leakage test facility for leak signal characteristic analysis in water pipeline  

Park, Sanghyuk (Korea Institute of Civil Engineering and Building Technology)
Kwak, Philljae (Korea Institute of Civil Engineering and Building Technology)
Lee, Hyundong (Korea Institute of Civil Engineering and Building Technology)
Choi, Changho (Korea Institute of Civil Engineering and Building Technology)
Publication Information
Journal of Korean Society of Water and Wastewater / v.31, no.5, 2017 , pp. 459-469 More about this Journal
Abstract
A real scale leakage test facility was developed to study the leak signal characteristics of water supply pipelines, and then leak tests were carried out. The facility was designed to overcome the limited experimental circumstances of domestic water supply pipeline experimental facilities. The length of the pipeline, which was installed as a straight line, is 280m. Six pipes were installed on a 70m interval with different pipe material and diameters that are DCIP(D200, D150, D100, D80), PE(D75) and PVC(D75).The intensity of the leakage is adjusted by changing the size of the leak hole and the opening rate of ball valve. Various pressure conditions were simulated using a pressure reducing valve.To minimize external noise sources which, deteriorate the quality of measured leak signal, the facility was built at a quiet area, where traffic and water consumption by customers is relatively rare. In addition, the usage of electric equipment was minimized to block out noise and the facility was operated using manual mode. From the experimental results of measured leakage signal at the facility, it was found that the signal intensity weakened and the signal of high frequency band attenuated as the distance from the water leakage point increased.
Keywords
accelerometer; leakage test facility; leak detection; leak signal; water supply pipeline;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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