Coal-fired slow-speed diesel seen economically feasible
A coal/water slurry-fired slow-speed, two-stoke diesel engine in the 8-30 MW range is feasible, efficient and economic for use in industrial cogeneration applications, a nine-year study for the Department of Energy shows. The program's first phase began in 1978 with the testing of synthetic liquids, coal-oil mixtures and, eventually, coal-water slurries as fuels. Results were so promising that the second phase, limited to coal-water research, was undertaken in 1982 in a search for lowest-cost fuel. A slow-speed, two-stroke marine-type diesel is the ideal engine to be adapted for direct coal firing because of its inherent characteristics, according to a performance report for DOE by Thermo Electron of Waltham, MA. The major negative is in the area of engine wear. Cylinder liner wear is an average of 22 times greater and piston ring wear 90 times greater than would be expected with diesel fuel. It is felt, however, that further development work will correct this deficiency.
- OSTI ID:
- 5651513
- Journal Information:
- Cogeneration; (United States), Vol. 4:6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
COAL
FUEL SLURRIES
COGENERATION
DIESEL ENGINES
WEAR
CORROSIVE EFFECTS
INDUSTRY
CARBONACEOUS MATERIALS
DEUS
DISPERSIONS
ENERGY SOURCES
ENERGY SYSTEMS
ENGINES
FOSSIL FUELS
FUELS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MATERIALS
MIXTURES
POWER GENERATION
SLURRIES
STEAM GENERATION
SUSPENSIONS
320304* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Waste Heat Recovery & Utilization
014000 - Coal
Lignite
& Peat- Combustion