Bike Hub Pelton Turbine

Turbines are a much more efficient way to harvest the energy of water in a stream or river than a paddle wheel. A Pelton wheel takes the kinetic energy and harvests it in two ways. It uses the static pressure to push the blades and then uses the added force due to the tangential acceleration of the water around the curve of the blade to harness more power out of the jet. This design is tough to make by hand, but is a lot more efficient than a water wheel. Therefore, using a 3D printer to enable affordable use of this technology in developing nations. Note: Water source must have high head for turbine to function well. If there is not high head, a water wheel may work better.

Explanation of Pelton Turbine

Bill of Materials[edit | edit source]

1. (11) 1/4-20 1" long bolts (McMaster Part #: 91251A542)
2. (11) 1/4-20 Lock Nuts (McMaster Part #: 90630A110)
3. (3) No. 5 3/4in Wood Screws (McMaster Part #: 90031A131)
4. (1) Bike Hub Adapter (3D Printed Part)
5. (11) Pelton Blades (3D Printed Parts)

Other Materials Necessary to connect to generate electricity (All non-specific)

1. (1) Rear bike hub with axle and sprocket
2. (1) Another Sprocket
3. (1) Bike Chain
4. (1) Diode
5. (1) Electric Motor or could create your own generator by following these instructions
6. Battery, light bulb, etc.

Here is a link to all of the source files and stl files: Bike Hub Pelton Turbine Thingiverse

Tools needed[edit | edit source]

1. MOST Delta RepRap or similar RepRap 3-D printer
2. Philips head Screwdriver

Skills and knowledge needed[edit | edit source]

• For the design of this turbine I referenced this.

Technical Specifications and Assembly Instructions[edit | edit source]

1. Print the base (Time:~1 Hour 45 Minutes)
2. Print the blades Time:~30 Minutes each)
3. Attach the turbine blades to the base using 1/4-20 bolts and nuts.
4. Attach the base to the hub using the wood screws, sending them through where the spokes normally go.

Cost savings[edit | edit source]

• For an 11 Blade Wheel, Cost, 40% infill=$10.04
• Plastic Pelton Wheel, non replaceable Blades, Cost= $150 [1]
• Savings: $139.96, or 93.31%

Gallery[edit | edit source]

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References[edit | edit source]

• The sources of information (e.g. engineering handbooks, journal articles, government documents, webpages, books, magazine articles etc.). References should use the and <references />tags and can be in any format but should include all the information necessary for someone else to find the same information you did. For example:^[1]