1. Bio-diesel and the Engine North Seattle Community College Courtney Hayes Allison House Sara Lussy Greg Lyman Michael Rafer

2. The Claim “Modern automotive engines cannot handle biodiesel because biodiesel does not put out as much heat as petroleum-based diesel.” The Response “Although biodiesel may not produce as much heat as petroleum based diesel (petrodiesel), it can still be used as an alternative fuel source in modern automotive engines.”

3. First things first… How diesel engines work Upstroke DownstrokeUpstroke Downstroke And now the fuels…

4. Petroleum-based Diesel Also called Petrodiesel Important components of the fuel –Heat of Combustion –Cetane # –Viscosity –Flash point –Gelling point –Horse power –Current price And…

5. Biodiesel Also called the methyl esters of veggie oils or animal fats Important components –Heat of Combustion –Cetane # –Viscosity –Flash point –Gelling point –Horse power –Current price To sum them up…

6. Petrodiesel vs. Biodiesel Measurable Qualities/Properties 100% Diesel Fuel100% Biodiesel Heat of Combustion (BTU/gal) 140,000 BTU/gal129,000 BTU/gal Cetane Number4855 Viscosity2.85.7 Flashpoint100 to 160º F260 to 300º F Gelling Temperature-20º FGenerally 32 º F Horsepower6862 Price$2.55 per gal$3.67 per gal

7. Wrapping up… Can biodiesel be used as an alternative source of fuel for modern diesel engines? –YES. Questions…?