3 FUNCTIONALITY
Water current turbines, or hydrokinetic turbines, produce electricity directly from the flowing water in a river or a stream. The turbine is placed in the water stream and flowing water enables the turbine to rotate, producing electricity. The energy flux of the water stream is dependent on the density, cross sectional area and velocity cubed. There are many concepts for harnessing this energy, but turbine is being the most common and proven one. The equation governing the turbine out-put power is-
P=1/2 ρKAV3
Where,
P = Power (watt)
ρ = Water density (kg/m3)
K= Power coefficient
A = Turbine area (m2)
V = Velocity of water (m/s)