The human demand for electricity and fresh water is ever increasing. Due to the nature of hydropower and its economic, social, and environmental benefits, hydropower will be an important contributor to the energy mix of the future. Isolated areas, severely underdeveloped regions, disaster-stricken zones, and remote military outposts have one common need: readily available and efficient means of...

the water hammer phenomenon in hydroelectric power plant’s penstock is one of the famous troubles which have been an interest for researchers. hence this phenomenon can cause many harmful effects on pipe lines and turbine, it is essential that effects of these surges along with line and turbine have been studied and suitable methods for controlling presented. in this way one of the most effecti...

The “Farkhod Hydroelectric Power Station” which was built in Syrdarya region has irrigated 700,000 hectares of fertile land Dalvarzin and Mirzachul districts Uzbekistan, Tajikistan Kazakhstan. “Andijan water reservoir” the Karadarya River Fergana Valley, a hydroelectric power plant with capacity 140,000,000 kilowatt-hours commissioned. Due to commissioning “Tuyamuyin” waterworks lower reaches A...

At low flow rate operation, Francis turbines feature a cavitating vortex rope in the draft tube resulting from the swirling flow of the runner outlet. The unsteady pressure field related to the precession of the vortex rope induces plane wave propagating in the entire hydraulic system. The frequency of the vortex rope precession being comprised between 0.2 and 0.4 times the turbine rotational s...