Author(s): Silvia Meniconi, Bruno Brunone, Matteo Frisinghelli, Caterina Capponi, Elisa Mazzetti
Linked Author(s): Bruno Brunone
Keywords: Diagnosis, inspection, transmission mains, pressurized pipe, pressure wave generation.
Abstract: In the last decades, several reliable technologies have been proposed for leak detection and location in water distribution networks (WDNs), whereas there are some limitations for transmission mains (TM). For TM inspection, the most common leak detection technologies are of inline types � with sensors inserted into the pipelines � and are more expensive with respect to those used in WDNs. An alternative to in-line sensors is given by transient test-based techniques (TTBTs), where pressure waves are injected in pipes "to explore" them. In this paper, the performance of TTBTs was checked in a real TM, in which a small pressure wave was generated by means of the Portable Pressure Wave Maker (PPWM), refined at the University of Perugia, Italy, that can be easily connected to the pipe. It is shown that this technique allows the detection of the most important singularities of the TM