Continuously variable transmissions with torque-sensing regulators in waterpumping windmills

L. Mangialardi and G. Mantriota

Renewable Energy, 1994, vol. 4, issue 7, 807-823

Abstract: One widespread application of wind energy is in waterpumping. Usually windmills are coupled to water pumps, though piston pumps are difficult to match to wind turbines. In the first approximation, the piston pump requires a constant torque to the turbine at all rotational speeds. Conversely, if the turbine were to operate at maximum efficiency levels, it would supply a torque proportional to the square of the wind speed. Hence, the combination of windmill and piston pump would be maximally efficient only for a single wind speed.

Date: 1994
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:4:y:1994:i:7:p:807-823

DOI: 10.1016/0960-1481(94)90233-X

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