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Small Wind Turbines (Horizontal Axis)
Advantages *Increased efficiency in power production *Smooth transfer of that power from the rotor to the gearbox  +
Application barriers High initial investment cost  +
Characteristic features Conversion of kinetic energy from the wind into electrical power  +
Description Horizontal-axis wind turbines (HAWT) are bHorizontal-axis wind turbines (HAWT) are built with a main rotor shaft and an electrical generator that are installed on the top of a tower, and must be pointed into the wind. The small turbines can be pointed into the wind by a simple wind vane, while large turbines often use a wind sensor coupled with a servo motor. Most have a gearbox, which turns the slow rotation of the blades into a quicker rotation which is more suitable to drive an electrical generator.suitable to drive an electrical generator.  +
Disadvantages Noise exposure which reduces especially the applicability in urban areas  +
Investment CostMax 7.539  +
Investment CostMin 2.320  +
Life ExpectancyMax 30  +
Life ExpectancyMin 10  +
Maintenance CostMax 3  +
Maintenance CostMin 1  +
Mast HeightMax 36  +
Mast HeightMin 5  +
Material BladesMin Composite fibre glass, Glass filled polypropylene, Glass reinforced nylon, Carbon fibre epoxy, Glass reinforced plastic, Steel polyster, Polypropylene, Polyurethane  +
Maximum Operating TemperatureMax 120  +
Maximum Operating TemperatureMin 35  +
Maximum Rotation SpeedMax 1200  +
Maximum Rotation SpeedMin 47  +
Maximum Wind Speed AllowedMax 250  +
Maximum Wind Speed AllowedMin 60  +
Minimum Operating TemperatureMax -20  +
Minimum Operating TemperatureMin -40  +
Noise at 20 m Distance with 5 m/sMax 95  +
Noise at 20 m Distance with 5 m/sMin 3  +
Nominal PowerMax 250  +
Nominal PowerMin 0.025  +
Nominal Wind SpeedMax 20  +
Nominal Wind SpeedMin 8  +
Number of BladesMax 6  +
Number of BladesMin 2  +
Operating EfficiencyMax 52  +
Operating EfficiencyMin 35  +
Operational CostMax 3  +
Operational CostMin 2  +
PositioningMax On the roof  +
PositioningMin On the ground  +
Rotor DiameterMax 21  +
Rotor DiameterMin 0.5  +
Rotor SurfaceMax 346  +
Rotor SurfaceMin 0.196  +
Rotor WeightMax 2300  +
Rotor WeightMin 3  +
Start Wind SpeedMax 4  +
Start Wind SpeedMin 2  +
Stop Wind SpeedMax 60  +
Stop Wind SpeedMin 10.5  +
Trade Building services  +
TransmissionMin Gearless, Spur gear/planet gears, Compact shaft mounted gear, No brake system  +
Voltage (AC)Max 500  +
Voltage (AC)Min 12  +
Has improper value forThis property is a special property in this wiki. SafetyMin  +
Categories ES 1  + , ES 2  + , Energy Generation  + , Renewable Energies  + , ES 3  +
Modification dateThis property is a special property in this wiki. 28 February 2017 19:40:19  +
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