An improved cetane number predictor for alternative fuels

Conference · Sat Oct 01 00:00:00 EDT 1983 · SAE Prepr.; (United States)

OSTI ID:6552737

Murphy, M J

The complexity of and expense involved in determining the cetane number of diesel fuels using a standard test engine have led to the development and widespread use of the ASTM cetane index. However the cetane index was not intended for use with alternative or unusual diesel fuels; its use with such fuels can lead to large errors. Using a database of alternative diesel fuel properties, a new cetane number prediction equation has been developed for use with alternative fuels, including alcohols. Compared with the cetane index, the average error in predicted cetane number is reduced by 40% and the number of cases where the error exceeds 5 cetane numbers is reduced by 30%. The significance of the various terms in the equation is discussed.

• Research Organization: Battelle, Columbus Laboratories
• OSTI ID: 6552737
• Report Number(s): CONF-8310223-
• Journal Information: SAE Prepr.; (United States), Vol. SAE-831746; Conference: Society of Automotive Engineers meeting, San Francisco, CA, USA, 31 Oct 1983
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
02 PETROLEUM
ANTIKNOCK RATINGS
CALCULATION METHODS
DIESEL FUELS
COMBUSTION PROPERTIES
DATA BASE MANAGEMENT
EQUATIONS
ERRORS
FORECASTING
FUEL SUBSTITUTION
STANDARDS
MANAGEMENT
PETROLEUM PRODUCTS
330800* - Emission Control- Alternative Fuels
020500 - Petroleum- Products & By-Products