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Wind Power

Background

Wind energy is a special form of the air's kinetic energy caused by solar radiation on the earth's surface. About 4500 years ago the Babylonians were the first to construct a machine, windmill, that converted the wind into mechanical energy; in their case for pumping water. Modern wind power converters are coupled to electric generators with peak powers of up to 5 million Watts (5 Megawatt). This technology promises to deliver a significant part of mankind's energy demand. Build your own little wind-powered generator:

Our Device

Wind.Power LexsolarWindReadyToGo
Wind.Power LexsolarWindReadyToGo
Price: 1010 €
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LexsolarWindReadyToGo - Wind Power Experimental Kit

With the leXsolar Wind Ready-to-go, you will be able to answer many questions you may have concerning the basic concepts of using wind energy. The leXsolar Wind Ready-to-go is also suitable for in-house workshops for example, for use by sales representatives.

List of experiments:

Power plant dependence on wind speed
Qualitative research experiment with light bulb
By measuring the voltage at the generator
By determining the power output of the generator using a fixed resistor

Variations in the generated voltage while connecting a load
With resistance
With the load's buzzer, engine and light bulb

Analysis of wind speed in front of and behind the rotor
While the engine is idle
With a load generator

Determing the effeciency of a wind power plant
Energy storage
Energy conversion and the use of wind energy:

Analysis of energy conversion: kinetic energy to rotational energy to electrical energy to radiation energy by the LED
Analysis of different energy conversions with buzzer, engine and light bulb

Analysis of different rotor types:
Comparison with the 3-bladed and Savonius rotor
Comparison of the 2-, 3-, and 4-bladed rotor
Qualitative comparison using a light bulb

Wind generator dependence on wind direction
While the engine is idle (measurement of voltage)
Under load
Qualitative research using a light bulb

List of components:

Base unit big
Resistor module
Potentiometer module
Buzzer module
Light bulb module
Motor module without gear
Farbscheiben inkl. Halter - Set I
Savoniusrotormodul
Winder machine LX
Wind generator module
Capacitor module 220 mF, 2.5V
LED-module 2mA, red
Wind rotor set
stator for anemometer
Universal - power supply
Digital multimeter
Test lead black 25 cm
Test lead red 25 cm
Test lead black 50 cm
Test lead red 50 cm
Anemometer
Aluminum case
Inset Wind-Ready to go
Instruction-CD
Wind.Power StrandbeestKit
Wind.Power StrandbeestKit
Wind.Power StrandbeestKit
Price: 39 €
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StrandbeestKit - Wind driven Walking Machine - Kit

The Strandbeest Kit is a miniature working model version of one of the famous Strandbeests made by the Dutch physicist-turned-artist Theo Jansen. After assembling, it walks on the wind, by hand or by blowing against the propeller.

Dimentions: 11cm x 17cm x 20cm
Wind.Power WindPowerKit
Price: 86 €
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WindPowerKit - Wind powered Dynamo - Kit

The StormyKit combines an electric generator with the classic design of rotor-vane anemometer with hemispherical cups. The rotor has four arms each with a half-ball vane at the end. The supporting structure for the drive shaft and the gear-generator assembly is made of three Plexiglas plates. The gearwheel ratio drives the electric generator - a 24 V direct current motor - 7 times faster than the rotor. Depending on the wind's speed, the generator will produce a current of 20-100 mA at 3-5 Volts. The StormyKit allows you to carry out your own experiments using and measuring the power output under different conditions and driving suitable small low voltage devices. The assembly of the kit requires common hand-tools and a set of twist drills (3, 4, 6, 11, 13 mm). The kit includes detailed assembly instructions.
Dimensions: assembled height 230 mm / rotor diameter 600 mm
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