Bioenergy in the Classroom: Fermentation in a Bag This project is supported by an AFRI Cap Grant no. 2011-68005-30407 from the USDA National Institute of Food and Agriculture (NIFA).
Procedure ! Add ¼ cup water to your bag (60ml) ! Add 1 teaspoon (one level plastic spoon of yeast to the bag. ! Add your station’s material to the bag (~ 1 level spoon’s worth). ! As you seal the bag, be sure to remove all air. ! Bring to the front of the room and return to your seat.
Energy IQ Quiz – Adults • How is most of the electricity generated in the US? • Which fossil fuel has the highest use in the US? • In the past ten years, has the average MPG increased or decreased? • Does the the US import more oil than 3 it produces?
Energy IQ Quiz – MS / HS • Which fossil fuel has the highest use in the US? 25% 33% • The term renewable energy means? 50% 66% • Why can’t we just switch to electric cars when we run out of fossil fuels? 50% 60% Dewaters & Powers, 2011 4
US Oil Imports February 4, 2016 5
The Peak February 4, 2016 6
Why Renewable Energy? • Sustainable supply of energy • Reduce CO 2 emission • Stronger rural economy Coal Oil Natural Gas Nuclear Energy Wind Energy Ocean Energy Hydropower Geothermal Energy Solar: Concentrating Solar Power Solar: Photovoltaics Bioenergy 0 200 400 600 800 1000 g CO 2 eq /kWh February 4, 2016 7
Where does the US get its energy? February 4, 2016 8
Sources of Biomass energy? February 4, 2016 9
What%part%of%the%country%has%the% best%woody%biomass? February 4, 2016 10
Evolution of Biofuels February 4, 2016 11
Second Generation Biofuels February 4, 2016 12
February 4, 2016 13
Cellulosic Ethanol February 4, 2016 14
Which Materials Do Yeast Digest? ! Cornmeal ! Corn starch ! Corn kernels ! Sugar ! Sugar substitutes What factors affect ethanol production?
Third Generation Biofuels February 4, 2016 16
February 4, 2016 17
Green Crude February 4, 2016 18
Design an Ethanol Plant
Design an Ethanol Plant Grind Ferment Acid Distill Heat Heat Warm
Implementation ! How could this activity be implemented in the curriculum?
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