320 likes | 514 Vues
Tracking the Sun. 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
E N D
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 • 5th Grade Teacher, Sunnyside Elementary • Bryan Hubbard • College of Technology, Building Construction Management
Additional Team Support Members • Melissa Colonis • Tecumseh Middle School, Math Specialist • Julie Bell • Purdue, Science Specialist • Connie Harris • Purdue SLED
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
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
Power Lost Due to Panel not Facing the Sun • 15° 3.4% power lost • 30° 13.4% power lost • 45° 30% power lost
Earth Rotation http://astro.unl.edu/naap/motion1/animations/seasons_ecliptic.html
Sun Position Additional Activities • Building earth/sun model • Solar dance • Shadow activities • Phototropic plants
Ball Bearings http://static.ddmcdn.com/gif/how-to-maintain-a-skateboard-1.jpg http://skateboarding-tricks-01.webs.com/skateboarding-tricks.jpg
Bearing Basics • Things roll better than they slide. • Rolling friction has less resistance that sliding friction. • These balls or rollers “bear” the load.
Ball Bearings • Most common type • Very small contact point
Lift platform Can crusher Front loader Example of Mechanisms
Microwave carrier to assist people on wheelchair Lift platform Example of Mechanisms