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Investigations at HydroElectric Power Plants
Sunnerstaholm Power Plant
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Actual cross section air core Alfta arithmetical mean average bottom slab boulder filling calculated cent coefficient of friction corresponding cross-sectional area curve determined difference in water direction distribution downstream effect erosion Fellenius flow type friction formula friction losses Göta älv ground water level ground water stream ground water supply ground water surface Hellstrom Hydraulic Laboratory hydro-electric power plants hydrological increase infiltration inflow Institute of Technology Institution of Hydraulics investigation Kalltorp lighthouse model loss of head maximum discharge mean value measured model tests observed obtained outlet overbreak pipe Porjus potassium permanganate rate of precipitation rate of pumping recorded relation relative variation roughness Royal Institute sand scale screens sectional area Sillre slope standard deviation Sthlm Stockholm strain gauges Sunnerstaholm Sweden Swedish Table test flume tion Torpshammar tunnel inlet tunnels under test type of flow Uppsala Esker upstream upward pressure vertical vortexes wall water gauges wave height wave length