Generating concept sketches:
Detailed composition sketch:
Fan blade concept model
Additional research:
This video talked about the main difference between a vertical and horizontal wind turbine. It also explained the advantage and disadvantages of vertical turbines compared to horizontal turbines. It also recommends making a vertical turbine for people who are interested in DIY, because vertical turbines structure is relatively easier than the horizontal turbine, and it performs better than horizontal turbines in low to a ground environments.
Materials & Tools:
DC Motor
Diode
Battery box
Fan
Phone charger
USB type-A output circuit board
Wood
Thin circular metal plate
Drill
Screws (dimension at least 10mm)
Copper wire
Schedule for making:
Before making:
Buy materials that the school does not provide.
February 23rd:
- Cut out the necessary wood pieces and drill holes in them.
- Assemble the middle part using a metal disk and the wood pieces.
- Attach the fan blades to the middle part using screws
February 25rd:
- Solder the positive and negative line of the rechargeable battery box to a DC motor.
- Modify the battery so it can be soldered to the circuit board.
March 1st:
- Assemble the finished circuit compartment with the fan structure.
- Connect a USB-type charger line to the battery and plug it in on a phone.
- Go to a place with wind and test out the device.
Success Criteria:
- The wind turbine can at least generate 8 volts power so it is able to charge a phone.
- The device has a high duration rate (could be used for at least 4 weeks).
- Final product can be later modified or improved.
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