Development of new procedures for rating the ignition quality of fuels for diesel engines. Interim report, October 1984-October 1986
The ignition delay times of 42 different fuels were measured in a constant-volume combustion bomb. The measurements were performed at three different initial air temperatures using fuels ranging from the primary reference fuels for cetane rating to complex mixtures of coal-derived liquids. A single-cylinder, variable compression-ratio, direct-injection diesel engine was designed and constructed to study the ignition quality of 17 of the 42 fuels. The total ignition delay times in the bomb were studied in the context of providing a means for rating the ignition quality of the fuels. Fuel-ignition-quality rating schemes are discussed, including one based on the current cetane-number scale as well as one based on a new scale which includes a measure of the sensitivity of the various fuels to the air temperature. The ignition delay times in the engine were measured as functions of the engine speed, load, and compression rato.
- Research Organization:
- Southwest Research Inst., San Antonio, TX (USA). Belvoir Fuels and Lubricants Research Facility
- OSTI ID:
- 6136465
- Report Number(s):
- AD-A-181617/2/XAB; BFLRF-223
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020500* -- Petroleum-- Products & By-Products
33 ADVANCED PROPULSION SYSTEMS
330102 -- Internal Combustion Engines-- Diesel
AIR
ANTIKNOCK RATINGS
BOMBS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
COMPRESSION RATIO
DIESEL ENGINES
DIESEL FUELS
DISPERSIONS
DISTILLATES
ENERGY SOURCES
ENGINES
FLUIDS
FOSSIL FUELS
FUELS
GASES
HEAT ENGINES
IGNITION QUALITY
INTERNAL COMBUSTION ENGINES
LIQUIDS
MATERIALS
MIXTURES
OXIDATION
PETROLEUM PRODUCTS
SENSITIVITY
SYNTHETIC FUELS
THERMOCHEMICAL PROCESSES
WEAPONS