Abstract:
The origin of the wind-turbine is discussed and its subsequent
development reviewed.
Various types of sail wind-turbine are described and their
advantages and different types detailed. Their appropriateness for
driving water pumps in developed, as well as in developing, countries
is examined and their benefits for rural communities of less developed
countries outlined.
The theoretical analysis of the behaviours of both propeller-type
wind-turbines and of two-dimensional yacht sails are reviewed and
their possible notifications to describe the performances of
flexible-sail wind-turbines discussed.
A novel,
wind-turbine
recorded.
variable sail profile, vertical-axis Savonius
has been developed and its power characteristics
Self-regulating peristaltic displacement pumps are proposed to be
driven by the horizontal or vertical-axis wind-turbines and their
operating characteristics are described. A theoretical analysis
relating the torque characteristic of the wind-turbine to that of the
pump is outlined.
Data are presented for the power augmentation of a
horizontal-axis, flexible-sail type wind-turbine, using a shroud,
tip-fins and centre-bodies.
Considerable power enhancements are achievable using the basic,
cheap wind-turbine power augmentors tested in this investigation.
