Author(s): Francesca Peretti; Andrea Menapace; Massimiliano Renzi; Maurizio Righetti

Linked Author(s): Andrea Menapace, Maurizio Righetti

Keywords: Irrigation; Potential Energy Recovery; Pressure Reducing Valves; Pump as Turbine; Water Distribution Network

Abstract: Pressure regulation valves are commonly installed in water distribution networks to maintain optimal hydraulic conditions throughout the network. Research suggests that sustainable micro-turbines, such as pumps used as turbines, can replace pressure reducing valves to recover energy. Although urban water supply systems have been extensively studied, research on irrigation networks has been limited. The study aims to evaluate the potential energy recovery of a mountain irrigation network using hydraulic modelling and simulation combined with a methodology for optimal machine selection. The study was conducted on a real network located in a mountainous region of Northern Italy, with altitudes ranging from 790 to 1,397 meters above sea level. The results indicate that the network has the potential to recover 33.2% of the total energy available at all hydrants, which is a promising outcome for energy recovery. This energy assessment is crucial for identifying opportunities to efficiently use natural resources and reduce the environmental impact of irrigation practices.

DOI: https://doi.org/10.3850/iahr-hic2483430201-189

Year: 2024