Smart Water Grid Systems: Transient Hydraulics, IoT Leak Detection, and Real-Time Network Optimization
Smart Water Grid Systems integrate Advanced Metering Infrastructure (AMI), Internet of Things (IoT) acoustic sensors, and real-time hydraulic modeling to monitor, control, and optimize municipal water distribution networks (WDNs). Managing high Non-Revenue Water (NRW) losses caused by physical pipe bursts, background leakage, and pressure surges requires transforming static distribution mains into dynamic, automated networks. Transient hydraulic analysis models pressure wave propagation resulting from sudden valve closures or pump trips using the Joukowsky Equation for transient head rise ($\Delta H$): $$\Delta H = \pm \frac{a \cdot \Delta v}{g}$$ Where $a$ is the acoustic wave speed in the fluid-pipe medium ($\text{m/s}$), $\Delta v$ is the change in flow velocity ($\text{m/s}$), and $g$ is acceleration due to gravity ($9.81\text{ m/s}^2$). Wave speed $a$ is evaluated considering pipe wall elasticity: $$a = \frac{\sqrt{\frac{K}{\rho}}}{\sqrt{1 + \left(\frac{K}{E}\right) \cd...