Modeling and Inventories
Heavy-duty Diesel Fuel Analysis
The EPA's heavy-duty diesel fuel analysis program sought to quantify the air pollution emission effects of diesel fuel parameters on various nonroad and highway heavy-duty diesel engines. The program examined the hydrocarbon (HC), oxides of nitrogen (NOx) and particulate matter (PM) emission impacts of diesel fuel parameters including such parameters as cetane number, aromatics content, and fuel density. The program was a short-term effort to perform a thorough analysis of existing data.
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- Final Technical Report: The Effect of Cetane Number Increase Due to Additives on NOx Emissions from Heavy-Duty Highway Engines (PDF) (109K, EPAA420-R-03-002, February 2003)
- Independent Peer Review of EPA Technical Report EPA420-S-02-012: The Effect of Cetane Number Increase Due To Additives on NOx Emissions from Heavy-Duty Highway Engines (132K, EPA420-S-03-001, February 2003)
- Draft Technical Report:
- The Effect of Cetane Number Increase Due to Additives on NOx Emissions from Heavy-Duty Highway Engines (PDF) (103K, EPA420-S-02-012 June 2002)
- Comments on EPA's Draft Analysis (PDF) (433K)
- Texas Low Emission Diesel Fuel Benefits
- Memorandum dated September 27, 2001 (PDF) (30K)
- Accompanying memorandum: Nonroad Diesel Engines under 50hp dated September 27, 2001 (PDF) (30K). These memoranda are also available in the public docket for the EPA Region 6 final rulemaking on the Texas low emission diesel rule
- Investigation of the relative impacts of mono and polyaromatics on emissions and potential methods for their inclusion in a diesel emissions model, August 23, 2001 (PDF) (17K). Posted August 24, 2001.
- Staff Discussion Document, Strategies and Issues in Correlating Diesel Fuel Properties with Emissions, July 2001 (PDF) (300K, EPA420-P-01-001).
- Revised Heavy-duty Diesel Emissions Database, which was used in the development of a model correlating diesel fuel properties with emissions of regulated pollutants, June 12, 2001.
- Cleaner Trucks, Buses, & Diesel Fuel
- Special Modeling in Support of the Heavy-Duty Engine/Vehicle and Highway Diesel Fuel Final Rule
- Vehicle & Engine Emission Modeling Software
- Diesel Fuel
- Biodiesel Emissions Analysis Program