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Author Topic: wind > hydraulic-pump > pelton > Electric  (Read 1458 times)
welshboy
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« on: July 06, 2010, 02:22:18 PM »

Just flying an idea - based on these factors.
Savonius wind has good torque but low speed. Very reliable and cheap.
water pumps increase power requirement by 30% for 10% speed change.
generators have a high kick in speed but also a limited speed range.

The idea is to link multiple savonius wind turbines pumping circulating water to a pelton generator .
The efficiency may be very poor but with an ability to generate at low windspeeds and the resistance of pumping water at higher windspeeds would still allow electricity to be generated.

It seems it would need to be very many pumps  as 1 hp is roughly the equivalent of  55 gallons of water  falling 1 ft a second .
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guydewdney
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« Reply #1 on: July 06, 2010, 08:50:31 PM »

or just a hydraulic 'gearbox' aka hydrostatic drive - infinate gear ratios (almost) and easily 'constant speed' out controllable.
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Pic of wheel on day 1
7.2kW Waterwheel and 9.8kW PV
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