Aspects of Water Hammer Design and Protection Measures Modeling in a Water Supply Adduction

Abstract

The dimensioning of pressurized hydraulic systems is often carried out in a steady flow regime, then the hydraulic system operation is verified and corrected to withstand the stresses that occur in a transient flow regime. Transient flow in pressure hydraulic systems occur when the flow conditions are changing (closing or opening a valve, breaking a pipe, start or shutting down of a pump). In the absence of adequate measures, if the flow conditions are rapidly changing, in most of the cases the water hammer occurs. There are no predetermined design measures against the water hammer, all protection and design measures needed to be calculated. The article presents some aspects of modeling design and protection measures required to combat the negative effects of the water hammer, for a water supply pipeline using Bentley Hammer software.