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:

  1. Cut out the necessary wood pieces and drill holes in them.
  2. Assemble the middle part using a metal disk and the wood pieces.
  3. Attach the fan blades to the middle part using screws

February 25rd:

  1. Solder the positive and negative line of the rechargeable battery box to a DC motor.
  2. Modify the battery so it can be soldered to the circuit board.

March 1st:

  1. Assemble the finished circuit compartment with the fan structure.
  2. Connect a USB-type charger line to the battery and plug it in on a phone.
  3. Go to a place with wind and test out the device.

Success Criteria:

  1. The wind turbine can at least generate 8 volts power so it is able to charge a phone.
  2. The device has a high duration rate  (could be used for at least 4 weeks).
  3. Final product can be later modified or improved.