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DOI	10.2172/10160720
Title	Effect of coal beneficiation process on rheology/atomization of coal water slurries. Quarterly progress report, November 1, 1993--January 31, 1994
Creator/Author	Ohene, F.
Publication Date	1994 Jun 01
OSTI Identifier	OSTI ID: 10160720; Legacy ID: DE94014003
Report Number(s)	DOE/MT/92019--5
DOE Contract Number	FG22-92MT92019
DOI	10.2172/10160720
Other Number(s)	Other: ON: DE94014003; BR: AA1525150
Resource Type	Technical Report
Specific Type	Numerical Data; Progress Report
Resource Relation	Other Information: PBD: [1994]
Coverage	Quarterly
Research Org	Grambling State Univ., LA (United States). Dept. of Chemistry
Sponsoring Org	USDOE, Washington, DC (United States)
Subject	01 COAL, LIGNITE, AND PEAT; FUEL SLURRIES; RHEOLOGY; ATOMIZATION; COAL; WATER; MIXTURES; PROGRESS REPORT; EXPERIMENTAL DATA; DROPLETS; SIZE; GLYCEROL
Description/Abstract	The atomization study began with simulated fluids-(Mixtures of glycerine-water mixtures or corn syrup-water mixtures). This was done to minimize the experimental variables, optimize the experimental conditions for subsequent CWS atomization studies and also, simplify the analysis. The atomization data obtained for the simulated fluids are as shown in Table 1 and 2. The Air/Fuel ratio was varied from 0.12--0.40 in this study. variation of SMD as a Function of Viscosity. The SMD of glycerine-water mixtures at high Air/Fuel and low Air/Fuel data are plotted in Figures 5 and 6. The data show that at high Air/Fuel ratio, there is no significant change of the SMD as the viscosity is varied. However, at low Air/Fuel ratio the SMD shows a strong dependence on the viscosity. This is due to the fact that entrainment losses become more severe as A/F increases, In the high A/F regime, there is very little variation between the SMD and the viscosity of the glycerine-water solutions. This is probably due to the fact that the relative velocity between the droplets and the air is very high and this produces high pressure forces on the droplets to the same extent. Considerable dispersion of the droplets was also observed at high A/F ratios. This effect is minimized in the low A/F regime. Figures 5--8 show plots os SMD as a Function of Air/Fuel ratio. The plot show a linear dependence of SMD on the air to Fuel ratio. A fit of the experimental data to equation 1 in order to determine the necessary coefficients will be reported during the next quarter.
Country of Publication	United States
Language	English
Format	Size: 11 p.
Availability	OSTI as DE94014003; Paper copy available at OSTI: phone, 865-576-8401, or email, reports@adonis.osti.gov To purchase this media from NTIS, click here
System Entry Date	2007 May 07
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