Biomass and Biofuels

Biomass and Biofuels - Biomass and Biofuels MECH 5970 Click...

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Click to edit Master subtitle style 9/24/11 Biomass and Biofuels MECH 5970 25 April 2011
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9/24/11 Background Biomass: material of recent biological origin. Provides (directly or via processing) HC fuel for combustion applications. Very long history Wine, beer making: fermentation methods Wood (a biofuel) was the original fuel.
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9/24/11 Current status
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9/24/11 2005-2008: ethanol is gasoline increased from 3.8 to 5.5%, and biodiesel in diesel increased from 0.9 to 1.5%
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9/24/11 Competition of resources: Water Agricultural land Agricultural products: food vs. fuel. Effect of extensive energy crop farming on ecosystem and climate. Net energy return: are fossil fuels saved? Critical issues
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Types of biofuels Plant oil based (sunflower, palm, waste oil,…) Straight use of oil with minor modifications (water removal, viscosity reduction) in diesel cycles. Biodiesel: transesterfication of plant oil
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This note was uploaded on 09/24/2011 for the course MECH 5970 taught by Professor Harris,d during the Summer '08 term at Auburn University.

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Biomass and Biofuels - Biomass and Biofuels MECH 5970 Click...

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