Literature review of cetane number and its correlations. Progress report, July 1986-March 1987
This review covers the standard method of determining cetane number (engine tests, ASTM D613) and alternative methods, which comprise 1 engine-test method and 33 cetane indices (predictive equations of cetane number). Of the alternative methods, emphasis is given to those that appear or had appeared promising as good predictors of cetane number. The various cetane indices are categorized according to the type of parameters employed viz, physical properties (e.g., the calculated cetane index, ASTM D976, an approved alternative method to ASTM D613), chemical composition/structure, and physico-chemical properties (e.g., spontaneous ignition tests). Of the physical properties, the combination of distillation temperature(s) and density appear to afford good correlations between cetane index and cetane number. Furthermore, these two parameters continue to feature in the replacement equations of D976. For indices based on a single property, aniline point gives the best prediction.
- Research Organization:
- Geo-Centers, Inc., Newton Upper Falls, MA (USA)
- OSTI ID:
- 6299410
- Report Number(s):
- AD-A-181753/5/XAB; GC-TR-87-1628
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
INTERNAL COMBUSTION ENGINES
ANTIKNOCK RATINGS
ANILINE
CHEMICAL COMPOSITION
DISTILLATION
INDEXES
MOLECULAR STRUCTURE
PHYSICAL PROPERTIES
STANDARDIZATION
AMINES
AROMATICS
DOCUMENT TYPES
ENGINES
HEAT ENGINES
ORGANIC COMPOUNDS
SEPARATION PROCESSES
330100* - Internal Combustion Engines