150 likes | 270 Views
Design for a Practical Green Energy Education. John Mativo and Steven Griffing University of Georgia ITEEA 2010: Charlotte, NC. Why Energy Concerns. Air quality and energy issues Personal expenditure (high cost) Political motives. Energy and its forms.
E N D
Design for a Practical Green Energy Education John Mativo and Steven Griffing University of Georgia ITEEA 2010: Charlotte, NC
Why Energy Concerns • Air quality and energy issues • Personal expenditure (high cost) • Political motives
Energy and its forms • Power – permeates through all things • Ability to do work • Kinetic and potential • In the form of • Chemical, Electrical, Gravitational, Heat (thermal), Light (radiant), Motion (kinetic), Nuclear • Renewable and non renewable
Renewable Energy • Solar • Geothermal • Biomass • Wind • Hydropower
Non renewable energy • Fossil fuels • Oil • Natural gas • coal
Design for a Practical Green Energy Education • Solar • Biomass • Fuel cell
Practical Solar What’s for dinner? Solar sausage...of course. Three minutes under the sun and it was over 180* 200* and rising slowly as the stone heats up. All of this after 4:00 PM in the afternoon. Not bad for a saran wrap window using window shade slats for a frame. The box is foil lined 2" Styrofoam (expanded polystyrene beads). Next project is to line the satellite dish with Mylar and ZAP some hot dogs.
http://www.epa.gov/landfill/documents/pdfs/conf/13th/knapp.pdfhttp://www.epa.gov/landfill/documents/pdfs/conf/13th/knapp.pdf
Fuel Cells • A factory – fuel as input and electricity as product • Fuel – oxygen and hydrogen • Product electricity and water http://en.wikipedia.org/wiki/File:Fuel_Cell_Block_Diagram.png
Fuel Cells Types • Phosphoric acid fuel cell (PAFC) • 200C, platinum, H+ • Polymer electrolyte membrane fuel cell (PEMFC) • 80C, platinum, H+ • Alkaline fuel cell (AFC) • 60 -220C, platinum, OH+ • Molten carbonate fuel cell (MCFC) • 650C, Nickel, • Solid-oxide fuel cell (SOFC) • 600-1000C, Perovskites (ceramic), O2-
Fuel Cell Challenges • Membrane issues • Remove water from anode/cathode • Expensive catalyst • Corrosive catalyst • Sealing issues
Electrolysis http://www.fuelcells.org/ced/career/scienceproject.pdf
Thank you • Questions • Suggestions • Recommendations