1. Tracking the Sun 1

2. SLED Team John Grutzner –College of Science, Chemistry Alyssa Pantich –College of Engineering, Biomedical Engineering Kari Clase –College of Technology, Technology, Leadership and Innovation Nancy Tyrie –5 th Grade Teacher, Sunnyside Elementary Bryan Hubbard –College of Technology, Building Construction Management

3. Additional Team Support Members Melissa Colonis –Tecumseh Middle School, Math Specialist Julie Bell –Purdue, Science Specialist Connie Harris –Purdue SLED 3

4. General Overview Two lesson plans Lunch speakers from CMTA Engineering –Design zero energy schools and assist with integrating building systems into the curriculum Check the website for the most up to date lesson plans (modifications/clarifications are always being made) Open ended design activities 4

5. Solar Tracker A solar tracker is device that orients a solar panel toward the sun. Solar panel trackers are used to reduce the angle between the incoming light and a photovoltaic panel. This increases the amount of energy produced http://en.wikipedia.org/wiki/Solar _tracker 5

6. http://www.justmeans.com/editor ial/wp- content/uploads/2010/02/mil_sol ar_farm_nellis_afb_lg.jpg 6 Trackers are used on most large solar farms

7. Power Lost Due to Panel not Facing the Sun 15° 3.4% power lost 30° 13.4% power lost 45° 30% power lost http://en.wikipedia.org/wiki/Solar _tracker 7

8. Discussion on sun position http://www.byexample.com/libra ry/illustrations/seasonal_sun/illus tration_sun.jpg 8

9. Reasons for the Seasons 9

10. Earth Rotation 10 http://astro.unl.edu/naap/motion1/animatio ns/seasons_ecliptic.html

11. Direct versus Indirect 11

12. Direct versus Indirect 12

13. Direct versus Indirect 13

14. Sun Position Additional Activities Building earth/sun model Solar dance Shadow activities Phototropic plants 14

15. Sun/Earth Model 15

16. http://cosmicdiary.org/blogs/tijan a_prodanovic/wp- content/uploads/2009/10/pic- 054.jpg 16 Solar Dance

17. Shadow Activity 17

18. 18

19. http://www.flickr.com/photos/jakeperks/244 1258936/http://www.flickr.com/photos/jakeperks/244 1258936/

20. Components used by Engineers 20

21. Ball Bearings http://static.ddmcdn.com/gif/how-to-maintain-a-skateboard-1.jpg http://skateboarding-tricks-01.webs.com/skateboarding-tricks.jpg

22. Bearing Basics Things roll better than they slide. Rolling friction has less resistance that sliding friction. These balls or rollers bear the load.

24. Ball Bearings Most common type Very small contact point

25. http://www.mdguidelines.com/im ages/Illustrations/hip_repl.jpg UC Berkeley 25

26. Four Bar Linkage 26

27. 27 Example of Mechanisms Lift platform Front loader Can crusher Hany A. Sherif, Qassim University http://www.docstoc.com/docs/74748705/introduction-College-of- Engineering-Qassim-University#

28. 28 Example of Mechanisms Lift platform Microwave carrier to assist people on wheelchair Hany A. Sherif, Qassim University http://www.docstoc.com/docs/74748705/introduction-College-of- Engineering-Qassim-University#

29. 29 Four-Bar Linkage

30. 30

31. 31

32. http://www.google.com/url?sa=t&rct=j&q=&esrc=s&frm=1&s ource=web&cd=1&ved=0CDcQFjAA&url=http%3A%2F%2F mysite.cherokee.k12.ga.us%2Fpersonal%2Fcharles_wilson%2 Fsite%2FSuspension%2520steering%2520power%2520points %2F1%2FAutomotive%2520Wheel%2520Bearings.ppt&ei=_J IIT4X6Aebo0QGG683ZDg&usg=AFQjCNEdrQKDRqYXU MtQJS-3BGuqzNfd7w