Client: Beha Electricity
Status: In Progress
Total Installed Capacity 16 MW
Pressure Relief Valves (PRV)
Esentepe HEPP is located in Black Sea Region within the border of Çaykara District of Trabzon Province over Ögene Creek. Esentepe HEPP composed of two diversion weirs and one powerhouse. Total catchment area of the weirs is 137.27 km2.
Flows of Büyük Creek and Balkodu Creek are diverted by means of Irmak and Oğlaklı Weirs. The diverted flows are conveyed through the power tunnel to the power plants that contain two Francis type turbines.
In Esentepe HEPP, which is located in close vicinity to the populated area where building stock and cultivated land has a considerable density, the conveyance line is planned as a pressurized tunnel taking the probable expropriation costs into consideration. Since the flows are transmitted directly to the power house via power tunnel, there is no more need for constructing a forebay and penstock. In addition, to reduce the water hammer effect “Pressure Relief Valves (PRV)” which ensure savings both from cost and space, are installed in the power house instead of building a surge tank. In this manner, the negative environmental effects and construction and expropriation costs are reduced to the least possible extent thereby ensuring the smooth and rapid construction of the project facilities. The calculations related with the water hammer effect and adaptations of the PRVs to the system are also carried out by Prosem Engineering.