Coal-fired slow-speed diesel seen economically feasible

Journal Article · · Cogeneration; (United States)

OSTI ID:5651513

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), Journal Name: Cogeneration; (United States) Vol. 4:6; ISSN COGEE
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000 -- Coal
Lignite
& Peat-- Combustion
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320304* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
CARBONACEOUS MATERIALS
COAL
COGENERATION
CORROSIVE EFFECTS
DEUS
DIESEL ENGINES
DISPERSIONS
ENERGY SOURCES
ENERGY SYSTEMS
ENGINES
FOSSIL FUELS
FUEL SLURRIES
FUELS
HEAT ENGINES
INDUSTRY
INTERNAL COMBUSTION ENGINES
MATERIALS
MIXTURES
POWER GENERATION
SLURRIES
STEAM GENERATION
SUSPENSIONS
WEAR