Miniature Windmill Gold Team- Cristhian Moreno, Eric Yang, Dillon - - PowerPoint PPT Presentation

Miniature Windmill

Gold Team- Cristhian Moreno, Eric Yang, Dillon Stanhope and Taylor Urbancic

Intro: Burkina Faso

• Northwestern Africa
• Little access to electricity
• Dry, flat land
• Moderate wind speeds
• Need access to inexpensive, sustainable energy

Case Study

Family consisting of a father, mother and four children Small plot of farming land next to Black Volta River Two hours from capital- Ouagadougou Must travel to capital to charge cell phone

Mission Statement

Our mission statement is to create a safe and durable device that can charge a family’s phone for under ten dollars and requires minimal labor from the family.

Design Process

• 1. Problem- Charge a phone in Burkina Faso
• 2. Redefine - Create electricity to charge a phone with $10 limitation per family
• 3. Develop - Create a windmill/watermill/windmill hat
• 4. Best Solution - Miniature windmill on family’s roof
• 5. Model - Build a windmill to capture rotational energy and make electricity
• 6. Test - Run tests to see how we can improve on the model
• 7. Evaluate Results - Changes to our Prototype 2

Judging Criteria

Judging Criteria Weight Waterwheel Propeller Hat Mini Wind Turbine < $10 per Family 6 points 1 (6) 2 (12) 2 (12) Minimal Physical Labor 5 points 2 (10) 1 (5) 2 (10) Ease of Maintenance 3 points 1 (3) 0 (0) 2 (6) Time to Build (3hr Max) 4 points 0 (0) 1 (4) 2 (8) Actual Electrical Output 7 points 2 (14) 1 (7) 1 (7) Multi-Functional 2 points 2 (4) 1 (2) 0 (0) Ecofriendly 1 point 2 (2) 2 (2) 2 (2) Total Points

• 39

32 45

Tests for Prototypes 1 and 2

Order Test Requirements for passing 1 Fan Test (Does it Work) The windmill spins at a minimum of one revolution per two seconds 2 Safety Test There are no jagged edges

• n the prototype and the

propeller does not fall off easily. 3 Ease of Maintenance Test Each part must be able to be put back onto the prototype in under ten minutes. 4 Sturdiness Test (Outdoor Test) The windmill still spun at a rate of at least two revolutions per second. 5 Ability to Produce Energy. (For Prototype 2 Only) It can produce energy from rotational motion.

Prototype 1

Made from wood, cardboard, a PVC pipe, and duct tape Passed the Ease of maintenance test and Fan test Failed the Safety and Outdoor test

Prototype 2

Made from wood, sheet metal, hot glue, a PVC pipe and a motor and gears Passed all tests

Testing Results

Battery Capacity - 770 mAh 0.057 A produced 0.770 Ah / 0.057 A = 13.5 h

Design Appropriateness

• Design cost - $14.02
• No physical work done by family
• Limited maintenance needed
• Power produced at .057 Amps per hour
• ~13.5 hours to fully charge phone

Suggestions for Prototype 3

• Create a bigger gear ratio to increase electricity output
• Create a situation with less friction to maximize captured energy
• Bigger Motor
• Bigger Fins