MICRO HYDRO TURBINES ( Home )

The design goal was to develop small Hydro Turbines ( Water Turbines ) for
low head waterfalls with high efficiences to a low cost.

MODIFIED CROSSFLOW TURBINES

can be built for low head ( 3 to 10 m) with high efficiences.
Careful design of inlet, outlet, size and curvature of runner vanes
has resulted in a design with low rotational velocity and low losses.

For a brief view of a crossflow MICRO HYDRO POWER PLANT see: Crossflow.

FLOATING VERTICAL HYDRO TURBINES FOR USE IN RIVERS

can be built as compact units ready to be dropped in a river with very little
of excavating before placement.
The
Floating Vertical Hydro Turbine must be tied up with a set of wires to
withstand heavy floods in the river. Under normal operation the unit shall rest
on the river bottom.
The efficiency can be as high as 75% even with a head of only 1 m.
This type of compact
Floating Vertical Hydro Turbine is not suitable in rivers
with drift ice during winter.

For a brief view of a compact Floating Vertical Hydro Turbine see: Vertical hydro

FLOATING VERTICAL HYDRO POWER TURBINES FOR TIDAL CURRENTS

can be profitable in fast tidal currents. The Vertical Tidal Turbine must be tied
up with a set of wires which can withstand stormy conditions.
The turbine works with bidirectional tidal flows and has speed regulation.

For a brief view of a Floating Vertical Tidal Turbine see: Vertical Tidal hydro

Gunnar Ettestøl, E.E.msc., e-mail: epost[a]ette.no

ETTE Elektro
4985 Vegårshei
Norway

mobile phone: + 47 90 11 74 72

.................Updated..by..G.E.....July 22. 2002..............