Coal-water slurry operation in an EMD diesel engine

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:5392196

Urban, C M; Mecredy, H E; Ryan, III, T W; Ingalls, M N

The U.S. Department of Energy, Morgantown Energy Technology Center has assumed a leadership role in the development of coal-burning diesel engines. The motivation for this work is obvious when one considers the magnitude of the domestic reserves of coal and the wide-spread use of diesel engines. The work reported in this paper represents the preliminary engine experiments leading to the development of a coal-burning, medium-speed diesel engine. The basis of this development effort is a two-stroke, 900 rpm, 216-mm (8.5-inch) bore engine manufactured by Electro-Motive Division of General Motors Corporation. The engine, in a minimally modified form, has been operated for several hours on a slurry of 50 percent (by mass) coal in water. Engine operation was achieved in this configuration using a pilot injection of diesel fuel to ignite the main charge of slurry. A standard unit injector, slightly modified by increasing diametrical clearances in the injector pump and nozzle tip, was used to inject the slurry. Under the engine operating conditions evaluated, the combustion efficiency of the coal and the NO/sub x/ emissions were lower than, and the particulate emissions were higher than, corresponding diesel fuel results. These initial results, achieved without optimizing the system on the coal slurry, demonstrate the potential for utilizing coal slurry fuels.

• OSTI ID: 5392196
• Report Number(s): CONF-880104-
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
290500 -- Energy Planning & Policy-- Research
Development
Demonstration
& Commercialization
33 ADVANCED PROPULSION SYSTEMS
330102* -- Internal Combustion Engines-- Diesel
AIR POLLUTION
BENCH-SCALE EXPERIMENTS
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
COMBUSTION
COMPARATIVE EVALUATIONS
DIESEL ENGINES
DIESEL FUELS
DISPERSIONS
ENERGY SOURCES
ENGINES
FOSSIL FUELS
FUELS
HEAT ENGINES
HYDROGEN COMPOUNDS
INTERNAL COMBUSTION ENGINES
MATERIALS
MIXTURES
NATIONAL ORGANIZATIONS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OPERATION
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
POLLUTION
QUANTITY RATIO
RESEARCH PROGRAMS
SLURRIES
SUSPENSIONS
THERMOCHEMICAL PROCESSES
US DOE
US ORGANIZATIONS
WATER