Investigation of Water Hammer Problems in the Penstocks of Pumped-Storage Power Plants

Dinçer, Ali Ersin
Bozkuş, Zafer
Waterhammer is an undesirable event, caused by sudden flow changes in confined pipe systems. When it occurs, its consequences can be very costly and even sometimes deadly. In general, it may be encountered in the penstocks of hydropower plants, water transmission lines, water networks, etc. Therefore, the operation guidelines of the hydropower plants should be defined correctly. In the present study, waterhammer problems in wind-hydro hybrid plants are investigated. Time dependent flow conditions in the penstocks are studied by the help of computer software, HAMMER. The software solves nonlinear differential equations by using method of characteristics. Firstly, hydraulic transients for various operational cases are investigated using some scenarios. Then, a surge tank, protective device, for waterhammer, is added to the system and for the same operational cases, hydraulic transients are studied again. In this study, only the scenario which gives the most critical results is investigated.
Citation Formats
A. E. Dinçer and Z. Bozkuş, “Investigation of Water Hammer Problems in the Penstocks of Pumped-Storage Power Plants,” presented at the 11th International Congress on Advances in Civil Engineering (2014), İstanbul, Türkiye, 2014, Accessed: 00, 2021. [Online]. Available: