Use of Biodiesel in Diesel Engines Jeffry N Curtis.

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Presentation transcript:

Use of Biodiesel in Diesel Engines Jeffry N Curtis

Photo Courtesy Bosch 2007

Review: Four Stroke Cycle Wartsila Diesel Cycle EGR

Graphic Courtesy Bosch 2007

Common Rail Components

Tolerances and Pressures 2100 bar = 30,000+ psi Injection Pressures.002 mm = × = 2 microns (  m) Needle Valve Clearance.06 mm = ” = 60 microns (  m) Human Hair Diameter

Photo by Jeff Curtis © 2007

Photo by Jeff Curtis © 2009

Photo Courtesy Bosch 2007

Spray Pattern

Photo Courtesy Bosch 2007

Fuel System Details Cummins ISB HPCR

Biodiesel Emissions: B20 Biodiesel Compared to Petroleum Diesel Carbon Dioxide (CO 2 )-16.0% Particulate Matter (PM)-18.0% Unburned Hydrocarbons (HC)-11.0% NOx (Oxides of Nitrogen)+1%

Multiple Injection Events/Firing Stroke

EGR Oxidation Type Catalytic Converter w/Particulate Filter Selective Catalytic Reduction (SCR)

Further Concerns/Discussion EGR The “NO x ” Question The “NO x ” Question The “Bosch” Timeline Are We Ready For It?

Jeffry N. Curtis, Instructor Diesel Equipment Technology Bellingham Technical College