Turbine Systems
– Axial (Horizontal): Rotational axis of rotor is parallel to the
incoming water stream (employing lift or drag type blades)
[22].
– Vertical: Rotational axis of rotor is vertical to the water surface
and also orthogonal to the incoming water stream
(employing lift or drag type blades) [23].
– Cross-flow: Rotational axis of rotor is parallel to the water
surface but orthogonal to the incoming water stream
(employing lift or drag type blades) [24].
– Venturi: Accelerated water resulting from a choke system
(that creates pressure gradient) is used to run an in-built or
on-shore turbine [25].
– Gravitational vortex: Artificially induced vortex effect is used
in driving a vertical turbine [26].
is given below: