Testing of an electronically-controlled fuel injection system (EFIS) for alternative fuels in diesel engines. Final report, June 15, 1981-December 31, 1982

Technical Report · Fri Apr 01 00:00:00 EST 1983

OSTI ID:5306395

Utvik, D H; Spadaccini, L J; Jaminet, J F; Titus, R R

A program was conducted to investigate the feasibility of operating a medium-speed stationary diesel engine on coal-derived liquid fuels. The overall objective of the program was to formulate control system algorithms for three middle-distillate alternative fuels, namely SRC-II, Exxon Donor Solvent (EDS) and H-Coal, for an optimum utilization of these fuels as diesel fuel extenders without adversely affecting engine performance and operation. A Mack six-cylinder, direct-injection, turbocharged engine was used to simulate a medium-speed stationary diesel powerplant. The program comprised a number of experimental and analytical tasks including injector spray characterization tests, diesel engine tests and development of engine control algorithms. Engine testing was accomplished under several tasks including baseline tests with No. 2 diesel fuel as well as fuel mapping tests, on-line fuel blending tests and fumigation tests with alternative fuel blends. With regard to fueling strategies for the coal-derived fuels, on-line blending investigations demonstrated the feasibility of operating a diesel engine with alternative fuel blends over a wide range of conditions. In particular, it was found that the Mack engine could be operated satisfactorily on highly loaded blends of EDS, H-Coal and SRC-II alternative fuels over a range of speed conditions from 800 to 1500 rpm as well as over a range of part-load conditions, although with reduced fuel economy at low loads. Finally, using the data bank generated from the program, algorithms were developed for describing engine performance and control over a range of operating conditions for EDS, H-Coal and SRC-II fuels blended with No. 2 diesel fuel. These algorithms demonstrate the methodology required in the prototype development of an electronically-controlled injection system for diesel engines capable of multifuel operation, and constitute a preliminary first step in that development. 10 references, 79 figures, 3 tables.

• Research Organization: United Technologies Research Center, East Hartford, CT (USA)
• DOE Contract Number: AC19-81BC10495
• OSTI ID: 5306395
• Report Number(s): DOE/BC/10495-7; ON: DE84006063
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
10 SYNTHETIC FUELS
01 COAL, LIGNITE, AND PEAT
COAL LIQUIDS
FUEL SUBSTITUTION
PERFORMANCE TESTING
DIESEL ENGINES
ALGORITHMS
DIESEL FUELS
EXPERIMENTAL DATA
EXXON LIQUEFACTION PROCESS
FOSSIL-FUEL POWER PLANTS
FUEL ADDITIVES
FUEL INJECTION SYSTEMS
H-COAL PROCESS
MIXTURES
SIMULATION
SPRAYS
SRC-II PROCESS
ADDITIVES
COAL LIQUEFACTION
DATA
DISPERSIONS
ENGINES
FLUIDS
FUEL SYSTEMS
HEAT ENGINES
INFORMATION
INTERNAL COMBUSTION ENGINES
LIQUEFACTION
LIQUIDS
MATHEMATICAL LOGIC
NUMERICAL DATA
PETROLEUM PRODUCTS
POWER PLANTS
TESTING
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES
330800* - Emission Control- Alternative Fuels
330102 - Internal Combustion Engines- Diesel
090110 - Hydrocarbon Fuels- Properties- (1979-1989)
010600 - Coal
Lignite
& Peat- Properties & Composition
010405 - Coal
Lignite
& Peat- Hydrogenation & Liquefaction