The rotors are not as effective compared to other low-cost windmills. For example, "The data from Bodek and Simonds' experimental S-rotor in the West Indies shows that the useful energy from a 12 mph wind... means that one can pump 75 Imperial gallons/hour up to 30' above the water level (341 liters/hour up to 9.14 m). In an 8 mph wind... only 25 Imperial gallons/hour (104 liters/hour) can be pumped to the same height."

This is not quite as good as the 5.4 m Cretan sail windmill, which is reported to pump as much as 15 times this volume of water in an 8 mph wind. Low-cost sail or bamboo mat windmills in Thailand also appear to be considerably more productive.

Original content from A.T. Wiki
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License CC-BY-SA-3.0
Language English (en)
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Aliases Savonious rotor
Impact 440 page views
Created January 10, 2007 by Eric Blazek
Modified January 20, 2023 by Irene Delgado
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