ECO Plant – Hydropower Pipeline in Schwarzach


Project ID: [00011109]
Country:Austria
City:Schwarzach
Year:2005
Application:Hydropower
Installation:Open Trench
Technology:Hobas
Total Length [m]:4000
Nominal Diameter DN [mm]1600
Nominal Pressure PN [bar]10 | 16
Nominal Stiffness SN [N/m2]10000

Not only excellent hydraulic properties for higher output and easy handling in impracticable terrain yet also economic aspects convinced the client to opt for HOBAS CC-GRP Pipe Systems. HOBAS® made use of a computer supported planning systems to offer a detailed item list as well as an elaborate CAD-key plan. The pipe course was simulated by computer to work out an economic installation plan. To save on bends, HOBAS® Pipes Austria suggested the utilization of flexible 3 m long pipe sections with 2.2° skew cut ends to achieve even smaller radii than with the angular deflection that HOBAS couplings generally allow. A detailed calculation showed that all in all 41 bends and the therefore necessary thrust blocks could be omitted with this simple method. This of course sped up the installation rate, reducing installation costs considerably. In order to avoid confusions on site the pipes were marked on the inside and outside. The pressure tests with a test pressure of 24 bar were successfully completed on December 20th 2006 and the small eco power plant was put into operation producing electricity for the approximately 15000 homes of East Tyrol.