Experimental study of micronized coal/water slurry rheology at high shear rates

Journal Article · Thu Mar 01 04:00:00 EST 1990 · Journal of Energy Resources Technology; (USA)

DOI:https://doi.org/10.1115/1.2905710· OSTI ID:5825048

Cho, Y I ^[1]; Choi, U S ^[2]

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1. Drexel Univ., Philadelphia, PA (USA). Dept. of Mechanical Engineering and Mechanics
2. Argonne National Lab., IL (USA). Materials and Components Technology Div.

the rheological behavior of four micronized coal water slurry (CWS) samples was studied experimentally for a wide range of shear rates between 3 and 30,000 s{sup {minus}1}. The systematic rheological characterization of the slurry fuel shows that the rheological behavior of these CWS is very complex and depends on coal particle size, temperature, coal loading, conditioning additives, and the capillary tube diameter as well as the shear rate. This study indicates that better appreciation of the unique and complex rheological behavior of non-Newtonian CWS fuels is vital to developing high-quality slurries suitable for use in coal-fired diesel engines, and suggests that a more comprehensive data base for CWS rheology under actual diesel engine operating conditions is needed prior to using such CWS fuels in diesel engines.

• OSTI ID: 5825048
• Journal Information: Journal of Energy Resources Technology; (USA), Journal Name: Journal of Energy Resources Technology; (USA) Vol. 112:1; ISSN 0195-0738; ISSN JERTD
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
33 ADVANCED PROPULSION SYSTEMS
330102 -- Internal Combustion Engines-- Diesel
330800 -- Emission Control-- Alternative Fuels
CARBONACEOUS MATERIALS
COAL
DIESEL ENGINES
DIESEL FUELS
DISPERSIONS
ENERGY SOURCES
ENGINES
FLUID MECHANICS
FOSSIL FUELS
FUEL SLURRIES
FUEL SUBSTITUTION
FUELS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MATERIALS
MECHANICS
MIXTURES
PETROLEUM PRODUCTS
RHEOLOGY
SHEAR
SLURRIES
SUSPENSIONS