Assessment of pipeline network leakage influence on dynamic characteristics of the pump complex

Development a mathematical model of acoustic signals for the implementation of a universal leak detection method

“…Thus, the review of current scientific solutions [1][2][3][4][5][6][7][8][9][10][11] has shown a wide range of applications of leak detection methods. However, the practical implementation of such methods has some limitations and is not always acceptable.…”

“…But it should be noted that usually, the acoustic signal may not be completely stationary. For example, it was already considered in [6] as a non-stationary signal which is difficult to implement in modeling. A solution may consist in presenting the acoustic signal as a piecewise stationary signal because intervals of stationarization can be found in some short periods.…”

“…One of the ways to further development of the proposed model is the use of a single transducer to detect leak locations since all current methods use at least two receivers installed around the intended leakage location [1][2][3][4][5][6][7][8][9][10][11].…”

“…To implement the universal method of leak detection, it is necessary to use combined diagnostic systems that make it possible to determine with high probability current state of the pipeline. For example, it was demonstrated in [6] that pipeline networks of pumping systems are characterized by a high degree of breakdown by leakages accompanied by complex wave processes in the hydraulic system. It was found that the wave processes of the network pipelines depend on location and amount of leakage, structural parameters of the hydropower network, and properties of the fluid being transported.…”