Harness the power of the wind to power your home by building a wind dynamo. You can use your dynamo to create electricity when you lose power due to inclement weather, or just when you want to save money on your electrical bills. The set-up of a homemade wind dynamo is three-pronged and universal. Propeller blades catch the energy of the wind. The rotor, the spinning hub to which the blades are attached, converts slow wind speed into rotary motion. Rotary motion, in turn, powers the motor in order to create enough energy to power your home.
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Things you need
- Blades and rotor, or PVC piping to build your own blades and rotor
- 2-by-4-foot piece of wood
- Heavy sheet aluminium
- Iron piping (diameter 1 inch)
- Electrical wiring
- Iron piping and hollow wooden circular base for mounting tower
Attach the blades to the rotor hub. If they are store-bought, follow the manufacturer's instructions. Alternatively, to attach your homemade blades and rotor, drill holes in the blades, and use bolts through the holes to attach the rotor.
Mount the motor to a piece of wood large enough for the motor, blades and rotor, along with an aluminium tail, i.e. 2 b 4 feet. Attach the tail to the end of the piece of wood opposite from the blades.
Mount the blades and rotor to the platform. Connect the shaft from the rotor to the shaft on the generator. Install the wind dynamo in an area that gets a reasonable amount of wind.
Drill a 1-inch diameter hole in the wooden platform, between the dynamo and the aluminium tail, and connect the platform to the iron tubing using bolts. Insert the iron tubing into the mounting tower. The iron tubing allows you to mount your dynamo so that it catches the wind; further, it allows you to run electrical wiring from the motor into the tower.
Build your mounting tower by bolting iron piping to a hollow wooden base, and place battery and inverter within the base. Insert iron tubing from the dynamo into the mounting tower. Run wires through iron tubing and mounting tower and connect to battery in base. Connect the battery, following manufacturer's instructions, to the inverter.
Use the inverter to power appliances that have electrical plugs. You are ready to use your wind dynamo; enjoy your environmentally friendly energy source.
Tips and warnings
- Obtain a motor rated for high DC voltage, low rpms and high current. When used as generators, motors generally have to be driven far faster than their rated speed to produce anything near their rated voltage. Therefore, find a motor that will put out over 12 V at a fairly low rpm.
- Choose the proper blades and rotor for your dynamo. Buying a premade set of blades and rotor, especially if you have little experience with building blades and rotors, may be faster and potentially lead to better results.
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