1. Biodiesel Cold Flow and Filtering
Mark Winston-Galant
September 5, 2007
Update Meeting

2. Introduction Projects
Engine Work
Install sensors
Exhaust Smokemeter
Biodiesel Cold Flow
Cloud point
Pour point
Cold filter plugging point

3. Introduction Cold Flow Test Results
Fuel Blend
CP (oC)
PP (oC)
CFPP (oC)
B10-YG
-20
-27
-26
B5-YG
-23
-30
-25
B2-YG
-24
<-36
ULSD

4. Introduction Cold Flow Problems
Biodiesel below cloud point:
Precipitates
Less flow than above cloud point
Biodiesel raised back to above cloud point:
Some precipitate remains
Clog fuel filter in engine

5. Cold Flow Experimental Methods General Information
Conjunction with Delphi Automotive
Test flow of fuel after filter
Test different types of biodiesel fuel
Sources (soybean oil, ragweed, etc)
Blends (B5, B10, B20, etc)
Apparatus contained in large freezer to keep uniform temperature

6. Cold Flow Experimental Methods Apparatus
Design From Delphi Automotive

7. What’s Next Help Kapila with engine Price instruments and materials
Build apparatus
Test flow rates