Locomotive Emissions Measurements for Various Blends of Biodiesel Fuel
The objective of this project was to assess the effects of various blends of biodiesel on locomotive engine exhaust emissions. The emission tests were conducted on two locomotive models, a Tier 2 EMD SD70ACe and a Tier 1 Plus GE Dash9-44CW, using two baseline fuels: (1) conventional Environmental Protection Agency (EPA) ASTM No. 2-D S15 certification diesel fuel and (2) commercially available California Air Resource Board (CARB) Ultra Low Sulfur Diesel (ULSD) fuel. A single batch of soy-based B100 was mixed in with the EPA and CARB diesel to yield a 5 percent and 20 percent blend of fuel. A randomized test matrix was used to perform triplicate tests on each of the six test fuels (EPA0, CARB0, EPA5, CARB5, EPA20, and CARB20). General emissions and fuel economy trends seen in other studies and applications for biodiesel use were also observed in this study. Higher blend levels of biodiesel were associated with lower carbon monoxide and particulate matter, as well as with higher levels of nitrogen oxides and fuel consumption. Use of diesel fuel with 20 percent biodiesel often resulted in statistically significant differences from the fuel with 0 percent or 5 percent biodiesel, while the difference between 0 percent and 5 percent biodiesel was generally not statistically significant.
- Record URL:
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Corporate Authors:
Southwest Research Institute
6220 Culebra Road
San Antonio, TX United States 78238Federal Railroad Administration
Office of Research and Development, 1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- Hedrick, John C
- Fritz, Steven G
- Publication Date: 2014-12
Language
- English
Media Info
- Media Type: Digital/other
- Edition: Final Report
- Features: Appendices; Figures; Photos; Tables;
- Pagination: 47p
Subject/Index Terms
- TRT Terms: Biodiesel fuels; Carbon monoxide; Diesel engine exhaust gases; Fuel consumption; Locomotives; Nitrogen oxides; Particulates; Passenger trains; Pollutants
- Subject Areas: Energy; Environment; Railroads; I15: Environment;
Filing Info
- Accession Number: 01551302
- Record Type: Publication
- Report/Paper Numbers: DOT/FRA/ORD-14/39
- Contract Numbers: FR-RRD-12-009
- Files: TRIS, ATRI, USDOT
- Created Date: Jan 27 2015 11:22AM