Abstract
The design of a water pumping installation incorporating a helical rotor pump driven by a vertical axis wind turbine is described. A specially design clutch is used in the drive train between the turbine and the pump. The clutch not only overcomes the high starting torque which is characteristic of helical rotor pumps but improves efficiency and allows at least a fourfold increases in gear ratio over that which would be employed if the turbine and the pump were directly linked. Preliminary field data is compared with computed performance, and a comparison with a conventional multibladed windmill is also made. The turbine will be available commercially in 1983 with the trade name “Mono Wind Turbine”.
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