Power from the wind Power from the wind
Jan 11, 2016
Power from the windPower from the wind
Sailcloth turbines for water pumping, Lasithi plateau, Crete
Modern waterpumping turbine
with metal blades, Kenya.
Mechanical drive from turbine rotor
shaft to verticalpump actuating
rod
Contours ofmean annualwind speedsin Europe.
UK (andespeciallyScotland)have the
best resources
Typical windturbine for electricityproduction from the
late 1970’s.
9m rotor diameter,15 kW rated poweroutput, rigid tower
construction
250 kWprototype by
James Howden,Glasgow in
early 1980’s.
28m diameterrotor, wood
laminate blades,thin tubularsteel tower
Howden turbinesite erection
process, usingsimple A-frame
Access toblade tip
adjustmentmechanism
from platformon tower
Maintenance ofwind turbineswill demandspecial skills;
access is more problematicfor smallermachines
Nacelle layout of typical horizontal-axis turbine
Disc brakeGearbox
GeneratorAnemometer
Yaw bearingand drive gear
Vestas 75 kW and 100 kW turbines atAltamont Pass, California, early 1980’s
UK Wind Energy Group (WEG) 250 kWturbines at Altamont Pass
Howden 330 kW production machines in California
WEG 300 kWturbine inCalifornia;2 blades,
full-span pitchcontrol
WEG 2-bladed turbine in a UK setting:Cemmaes wind farm, Wales
Wind turbines at Tarifa in southern Spain
Wind farm in an industrial area:Blyth Harbour, Tyne and Wear, UK
First commercial offshore windfarm, Vindeby, Denmark
Turbines atVindeby wind
farm:Bonus 450 kWmachines withfull-span pitch
control
Yttre Stengrundoffshore windfarm, Sweden
5 turbines,water depth 8.5m
Contrastingapplications
of windpower at
Yttre Stengrund
Yttre Stengrundwind farm:NEG Miconturbines of
2 MW ratedpower output;rotor diameter
72m
Horns Reefoffshore wind
farm, Denmark.Erection oftower and
mounting ofready-assembledturbine nacelle
Vestas V80turbines, eachof rated power
2 MW
Horns Reef wind farm off the west coast of Denmark.80 turbines, each rated at 2 MW
UK offshorewind farm at
Blyth Harbour,Tyne and Wear.
2 turbineseach ratedat 2 MW,
approx. 1 kmfrom shore
Single-bladedwind turbinemanufactured
by Riva Calzoni, Italy.
Rated at225 kW
Direct driveto generatorfor 500 kWturbine byEnercon,Germany
Model of Enerconturbine showing
enlarged hubrequired tocontain thedirect-drivegenerator
750 kW turbinewith direct-drive
generator byJeumont, France
Vertical-axisturbines: 100Wbattery-charging
prototype byMMEW, Dundee.
Direct drive togenerator,
variable-pitchblades
150 kW vertical-axiswind turbine at
Carmarthen Bay,Wales.
UK-designedprototype withvariable blade
geometry.
Concrete tower,composite blades
18m in height
Fixed-geometryvertical-axisturbine ratedat 100 kW,
Isles of Scilly,UK
500 kW developmentof 150 kW turbine
with fixed-geometryblading, on test siteat Carmarthen Bay
Project EOLE 4 MW vertical-axis prototype, Quebec.Tower height 110m, catenary-profile blades