Isolation of two non-concurrent leaks in water pipelines

Abstract

In the present work a well known algorithm to detect and isolate only one leak has been enhanced to achieve the isolation of two non-concurrent water leaks. This LDI algorithm uses measurements of flow rate and pressure head at the ends of the pipeline. In this work, the isolation of a second leak is achieved using a steady state relation between the estimated parameters of the first isolated leak and the parameters of an equivalent leak. The leaks can appear at any spatial order and can be isolated thanks to the use of a proposed logic rule. Finally, this scheme is tested using synthetic data obtained from a pipeline simulator.