1. Alternative Energy Cell Phone Charger Team #6: Jack Boylan Jake Kapoosuzian Rahul George Pennsylvania State University EDSGN 100

2.  Design Statement: Design a charger system for mobile devices that operates from sources other than standard wall or vehicle power.  Develop unique use case with considerations for:  Safety  Economic Viability  Environmental Impact Problem Statement

3.  Emergency situation:  Broken down car  Need to call for assistance  Cell phone battery is dead  Everyday use:  Battery dies from normal use through the day  Still want to use it Use Case

4.  Primary Evaluation Criteria:  Safety  Ease of use  Total energy collected >=.5 Watts  Size  Time to charge  Aesthetically pleasing Design Process

5.  Smartphone case with a battery pack in the bottom.  Both power sources feed into the battery.  Sides made from soft flexible material.  Case can be reproduced to fit different phones. Final Design

6.  78 cm 2 solar panel on back (13cm x 6cm)  In State College sunlight: 1cm 2 = 0.0044 Watts / hour  Total Energy provided =.343 Watts / hour  Over the course of a day:.343 watts x 5 hours sunlight = 1.72 watts per day. Solar Component

7.  The Piezoelectric effect is the production of electrical charge by applying pressure to a substance.  Energy provided per squeeze (assuming 7.25 psi squeeze) = 1.5µW x 2 P.E plates = 3µW  Requires 150 squeezes to power. Piezoelectric Component

8. Sample Piezoelectric Generator

9. Final Design Piezoelectric Component (inside case on the sides) Solar Panel Component (covering the back of the case) Safety: Safe Estimated Total Cost: $85 Environmental Impact: None

10. Thank You!