alternative renewables. biofuels plant or animal material 3 types – biomass wood, yard waste...
Post on 28-Dec-2015
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Alternative Renewables
Biofuels• Plant or animal material• 3 types
– Biomass• Wood, yard waste• Methane from landfills, feedlots• Burned and used to create steam electricity
– Biodiesel• Oils or algae• Byproduct: Glycerin• Pure or mixed• Energy Information• Decreased emissions• Storage
Ethanol
• Corn or sugar cane• Mixed with gasoline• Byproducts used as feed• Energy Information
– In vs Out– Final product
• Decreased emissions
Biofuels
• AdvantagesEES 1st
EES 4th
EES 6th EES 7th
• Disadvantages
Geothermal
Uses naturally hot air underground
Pump air to surface Requires energy Remove toxins Spins turbines,
turns generators Cooler air sinks Process repeated
Reverse – air conditioning
Hydrogen Separated from water
Using lots of electricity Burned for energy
Cars Clean Energy Information
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