Non-Intrusive Continuous Monitoring of Leaks for an In-Service Penstock

Autor: Marius Nati, Cristina Despina-Stoian, Dragos Nastasiu, Denis Stanescu, Angela Digulescu, Cornel Ioana, Vincent Nanchen
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Sensors, Vol 24, Iss 16, p 5182 (2024)
Druh dokumentu: article
ISSN: 24165182
1424-8220
DOI: 10.3390/s24165182
Popis: In modern industries, pipelines play a crucial role, both as an essential element in energy transportation (water, gas and electricity) and also in the distribution of these resources. The large size of piping infrastructures, their age and unpredictable external factors are the main difficulties in monitoring the piping system. In this context, the detection and the localization of leaks are challenging but essential, as leaks lead to substantial economic losses. Current methods have many limitations, involving invasive procedures, working only with short pipes or requiring a system shutdown. This paper presents a non-intrusive method based on acoustic signal processing. Leak detection is performed using matched filters, while localization is performed based on the phase diagram representation method and diagram-based entropy computation. Our continuous monitoring system was used for two months and a full comparison with the video inspection-based technique was conducted. The results indicate that this method has a high accuracy, regardless of the length of the pipe.
Databáze: Directory of Open Access Journals
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