Results 201 to 210 of about 36,299 (243)

Developing anthracite coal water slurry fuel

Fuel and Energy Abstracts, 1996
Abstract : Public law has directed the Department of Defense (DOD) to increase the use of coal, particularly anthracite, at steam generating facilities. This study evaluates the feasibility of producing slurry fuel from anthracite coal and examines the combustion characteristics of the anthracite/water fuel slurry.
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Effect of Coal Particle Size on Coal-Water Slurry (CWS) Atomization

Heat Transfer: Volume 2, 1997
Abstract The effect of coal particle size on coal-water slurry (CWS) atomization is examined by comparing classified CWS sprays containing coal particles in different size ranges. The sprays are generated by injecting a CWS mixture into a sonic air jet and the Malvern sizing system nonintrusively measures spray Sauter mean diameters (SMD)
S. Y. Son, Kenneth D. Kihm
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Natural Dispersant in Coal Water Slurry Stabilization

2021
The stabilization of a coal-water slurry, which is a concentrated mixture of powdered coal and water, is popularly known as coal-water liquid fuel, and the maintenance of its suitable rheological characteristics necessitates the production of well-dispersed solid coal particles in water.
Debadutta Das, Prativa Kar, Bijnyan Ranjan Das, Ranjan Kumar Mohapatra, Subrata Narayan Das, Pankaj Kumar Parhi, Umakanta Behera   +6 more
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Additives the panacea of coal water slurry

Materials Today: Proceedings, 2021
Abstract Indian high ash coal was used for the preparation of coal water slurry consisting of coarse and fine particles in the proper proportion. Four bimodal samples were prepared with the combination of four coarse fractions such as (212 µm–300 µm, 90 µm–300 µm, 150 µm–212 µm, 75 µm–150 µm) with fine fraction of (
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Secondary breakup of coal water slurry drops

Physics of Fluids, 2011
To investigate secondary atomization of coal water slurry (CWS), deformation and breakup of eight kinds of CWS drops are presented using high speed digital camera. Based on morphology, deformation and breakup regimes of CWS drops can be termed some different modes: deformation, multimode breakup (including two sub-modes: hole breakup and tensile ...
Hui Zhao, Hai-Feng Liu, Jian-Liang Xu, Wei-Feng Li   +3 more
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Utilization Slurry Coal-Water Fuel

2014
The opportunity of technological and modified lignosulphonate wastes, process water, oxygenized brown coal with high content huminic acid (to 60 %) with alkali usage as plasticizer agent in the coal-water slurry (CWS) production technological process was checked. The CWS stability scheme in alkali additives interaction was suggested. The bituminous and
Baranova, Marina P., Li, Qian, Zheng, Zhi-Ying, Li, Feng-Chen, Kulagin, Vladimir A., Likhachev, Dmitriy S.   +5 more
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Polymeric dispersants for coal–water slurries

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2005
Abstract The effect of several low molecular weight polymers (MW  Good coal dispersants are also strong flotation depressants. The poor dispersing performance of hydroxypropyl cellulose correlates well with the inability of the polymer to depress the natural floatability of the bituminous coal.
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Ultrasonic study of concentrated coal-water slurries

The Journal of the Acoustical Society of America, 1986
The use of ultrasonic absorption measurements as a diagnostic tool for monitoring the particle size of coal-water slurries has been suggested by M. C. Davis [J. Acoust. Soc. Am. 65, 387 (1979)]. The present paper reports some experimental data obtained from ultrasonic absorption and velocity measurements on electrostatically and sterically stabilized ...
M. A. Barrett Gultepe, M. E. Gultepe, E. Yeager   +2 more
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Viscometry and rheology of coal water slurry

Fuel, 1986
Abstract This paper presents the results of a detailed experimental study on rheological behaviour of coal water slurry (CWS). In contrast to earlier rheological studies at shear rates of rather narrow ranges, this study covered a much wider range of shear rates: 0–800 s −1 in a rotational viscometer and 400–10000 s −1 in a capillary viscometer ...
Shirley C. Tsai, Everett W. Knell
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Coal-water slurry: A status report

Energy, 1986
Abstract During the years of oil shortage and rapidly increasing oil prices, the need to decrease dependence on oil-fired utility boilers became an urgent concern. The alternatives were to: 1. (1) build new coal-fired stations; 2. (2) modify oil-fired boilers to fire pulverized coal; 3.
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