Results 181 to 190 of about 5,615,470 (227)

Structure of coal water slurry sprays

Journal of Propulsion and Power, 1995
A model of coal water slurry (CWS) sprays is presented with new experimental data for CWS viscosities and surface tension. The model is based on the aerodynamic theory of spray atomization that has been successfully used for diesel sprays. However, the higher CWS viscosity makes their behavior different from diesel sprays.
Manikandan Prithiviraj, Malcolm J. Andrews   +1 more
openaire   +1 more source

Combustion of coal-water slurry droplets

Fuel, 1986
Abstract The combustion of single droplets of coal-water slurries was studied experimentally by determining the instantaneous size and mass of the droplets and theoretically modelled for the char agglomerate by allowing for the presence of the ash layer as well as the residual volatiles.
G.E. Liu, C.K. Law
openaire   +1 more source

Coal Water Slurry Fuels — An Overview

Mining, Metallurgy & Exploration, 1984
There are a number of incentives for potential users of coal slurry fuels--and in particular for coal-water mixtures (CWMs) which the authors address in this paper. First, CWM represents an assured supply of fuel at a price which is quite easily predictable into future years. Second CWM is available in the near term.
L. Pommier, T. Frankiewicz, W. Weissberger   +2 more
openaire   +1 more source

The Optimization of a Coal Water Slurry Atomizer

Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications, 1989
A coal water slurry (CWS) air assist atomizer has been optimized for use in a coal fueled gas turbine engine. The nozzle is a refinement of a successful atomizer originally designed to operate at an atomizing air/fuel ratio of 1:1 and a pressure ratio of 2:1.
T. C. Roesler, C. Wilkes
openaire   +1 more source

Atomization of Coal Water Slurry Sprays

SAE Technical Paper Series, 1994
<div class="htmlview paragraph">The atomization of coal water slurry (CWS) sprays is modeled using the aerodynamic theory of atomization. Several extensions to the theory have been explored to account for the non-Newtonian behavior of the slurry.
Manikandan Prithiviraj, Malcolm J. Andrews   +1 more
openaire   +1 more source

Modelling the Rheology of a Coal-Water Slurry

1991
A coal-water slurry (CWS) is a suspension of coal particles (up to 70% in weight) in water. A small amount of an appropriate chemical substance is added in order to fluidize the mixture which becomes stable against sedimentation and can be pumped through pipelines.
A. Fasano, M. Primicerio
openaire   +1 more source

The numerical simulation of petroleum-coke coal water slurry gasification process in a new-type coal water slurry gasifier

2010 Second International Conference on Computational Intelligence and Natural Computing, 2010
The gasification process of petroleum-coke coal water slurry in a new-type coal water slurry gasification furnace has been simulated. The temperature distribution in the coal water slurry furnace and the concentration distribution of the gasified products have been studied.
null Yu Hai-long, null Dong Xiang-yuan, null Guo Shu-qing, null Zhang Gui-fang, null Liu Jian-zhong   +4 more
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Slurry characteristics and mechanism analysis of petroleum coke–coal water slurry

Asia-Pacific Journal of Chemical Engineering, 2019
AbstractPetroleum coke–coal slurry (PCCS) was prepared by blending sub‐bituminous coal with petroleum coke in different proportions. The rheology and stability of PCCS were studied, and the mechanism of dispersion and stability was analyzed. Results show that with the increase of the mass ratio of petroleum coke to Shenhua coal (α) in PCCS, the ...
Shuang‐Ni Wang, Jian‐Zhong Liu, Yi Wang, Ning Li, Ke‐Fa Cen   +4 more
openaire   +1 more source

Slip flow of coal water slurries in pipelines

Fuel, 2010
Experiments were carried out on a pilot scale slurry transport apparatus to investigate slip flow behavior of coal water slurries (CWSs) in pipes with various diameters (25, 32, 40 and 50 mm). The effects of volume concentration, particle size and slurry temperature on wall slip behavior (wall slip velocity, critical wall shear stress and slippage ...
Liangyong Chen, Yufeng Duan, Meng Liu, Changsui Zhao   +3 more
openaire   +1 more source

Effect of Flotation on Preparation of Coal-Water Slurries

International Journal of Coal Preparation and Utilization, 2009
In order to study the effect of flotation reagents on the properties of coal-water slurry, a sub-bituminous coal was cleaned via either forward flotation or reverse flotation. The froth product from the forward flotation, obtained with the use of diesel oil and MIBC, and the tailings of the reverse flotation, carried out with dextrin-tannic acid ...
K. Ding, J. S. Laskowski
openaire   +1 more source