Medium-speed diesel engines Part II: Lubricants, their characteristics and evaluation
Conference
·
· Am. Soc. Mech. Eng., (Pap.); (United States)
OSTI ID:6423121
Fuel costs can exceed 50% of the total diesel plant's operational expenditures. To reduce fuel costs, medium-speed engines are now available with improved fuel consumption and ability to burn residual fuels. Part I reviews these engine and design changes needed for both improved fuel consumption and ability to burn poorer quality fuels. Characteristics of these fuels and international fuel specifications are discussed. Ignition quality of residual fuels by a modified ASTM D 613 procedure are presented and correlation shown to calculated diesel index and calculated carbon aromaticity index (CCAI). Residual fuel ignition delay effects on combustion pressure rise, fuel consumption, and piston temperature in a laboratory single-cylinder diesel engine are shown. Part II reviews characteristics of lubricants suitable for use with distillate, residual, and blended fuels in medium-speed engines. Examples are shown of how lubricants and their additives control engine wear, deposits and oxidation, and how fuel consumption is affected by viscosity. Control of insolubles and the purification of used lubricants are discussed.
- Research Organization:
- Chevron Research Co., Richmond, CA
- OSTI ID:
- 6423121
- Report Number(s):
- CONF-840201-
- Conference Information:
- Journal Name: Am. Soc. Mech. Eng., (Pap.); (United States) Journal Volume: 84-DGP-17
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330102* -- Internal Combustion Engines-- Diesel
ADDITIVES
BENCH-SCALE EXPERIMENTS
CHEMICAL REACTIONS
COMBUSTION CONTROL
COMBUSTION PROPERTIES
CONTROL
DEPOSITION
DESIGN
DIESEL ENGINES
DISPERSIONS
ENGINES
FUEL ECONOMY
FUEL OILS
FUELS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LIQUID FUELS
LUBRICANTS
MIXTURES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
PETROLEUM PRODUCTS
PISTONS
PURIFICATION
RESIDUAL FUELS
SPECIFICATIONS
TEMPERATURE EFFECTS
VISCOSITY
WEAR
330102* -- Internal Combustion Engines-- Diesel
ADDITIVES
BENCH-SCALE EXPERIMENTS
CHEMICAL REACTIONS
COMBUSTION CONTROL
COMBUSTION PROPERTIES
CONTROL
DEPOSITION
DESIGN
DIESEL ENGINES
DISPERSIONS
ENGINES
FUEL ECONOMY
FUEL OILS
FUELS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LIQUID FUELS
LUBRICANTS
MIXTURES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
PETROLEUM PRODUCTS
PISTONS
PURIFICATION
RESIDUAL FUELS
SPECIFICATIONS
TEMPERATURE EFFECTS
VISCOSITY
WEAR