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Optical properties of flyash

Description: The general aims of this research are to provide a fundamental scientific basis for the physical understanding and reliable calculation of heat transfer in coal combustion systems, particularly as it is influenced by the presence of inorganic constituents deriving from mineral matter in coal. (VC)
Date: April 1, 1992
Creator: Self, S.A.
Partner: UNT Libraries Government Documents Department
open access

Optical properties of flyash

Description: The general aims of this research are to provide a fundamental scientific basis for the physical understanding and reliable calculation of radiative heat transfer in coal combustion systems, particularly as its influenced by the presence of inorganic constitutents deriving from the mineral matter in coal.
Date: January 1, 1992
Creator: Self, S.A.
Partner: UNT Libraries Government Documents Department
open access

Optical properties of flyash

Description: This is the sixteenth quarterly report under DOE contract No. DE-AC22-87PC 79903 entitled Optical Properties of Flyash.'' Tasks 1 and 2 of this program were funded from September 15, 1987. Tasks 3 and 4 were funded from September 15, 1988. The general aims of this research are to provide a fundamental scientific basis for the physical understanding and reliable calculation of radiative heat transfer in coal combustion systems, particularly as it is influenced by the presence of inorganic consti… more
Date: November 1, 1991
Creator: Self, S.A.
Partner: UNT Libraries Government Documents Department
open access

Optical properties of flyash

Description: The general aims of this research are to provide a fundamental scientific basis for the physical understanding and reliable calculation of radiative heat transfer in coal combustion systems, particularly as it is influenced by the presence of inorganic constituents deriving from the mineral matter in coal. Work is organized under four tasks: Characterization of Flyash: The chemical composition and size distribution of representative flyashes are being measured by appropriate microanalytical tec… more
Date: October 1, 1990
Creator: Self, S.A.
Partner: UNT Libraries Government Documents Department
open access

Optical properties of flyash

Description: The chemical composition and size distribution of representative flyashes are being measured by appropriate microanalytical techniques to provide information required. Measurements of the infrared optical constants (i.e., the complex refractive index m = n - ik) of synthetic slags are being made as a function of wavelength and temperature for controlled compositions. Particular attention will be given to the contribution of the Fe{sub 2}O{sub 3} content and its valence state. The data is being … more
Date: July 1, 1990
Creator: Self, S.A.
Partner: UNT Libraries Government Documents Department
open access

Optical properties of flyash

Description: During the past quarter we have successfully measured the near normal reflectance of synthetic slags SA00, SA01, and SA05 at 1600[degree]C. The expected similarity of the measurements for slags SA00 and SA01 (which have nearly the same composition) reinforces our conclusion that the experiment is repeatable, although more data will certainly be taken to ensure this. The Kramers-Kronig relations have been applied to the reflectance data to obtain n in the wavelength range 1--13 [mu]m and k in th… more
Date: January 1, 1990
Creator: Self, S.A.
Partner: UNT Libraries Government Documents Department
open access

Optical properties of flyash

Description: The purpose of this task is to validate the whole approach adopted in this program. Specifically, this bench-scale experiment is intended to compare the measured optical/radiative properties of a dispersion of well characterized ash with those calculated on the basis of the known size/composition distribution using the correlation formulae relating the composition and complex refractive index resulting from measurements on bulk samples of synthetic slag. Considerable thought has been given to t… more
Date: July 1, 1989
Creator: Self, S.A.
Partner: UNT Libraries Government Documents Department
open access

Optical properties of fly ash. Volume 1, Final report

Description: Research performed under this contract was divided into four tasks under the following headings: Task 1, Characterization of fly ash; Task 2, Measurements of the optical constants of slags; Task 3, Calculations of the radiant properties of fly ash dispersions; and Task 4, Measurements of the radiant properties of fly ash dispersions. Tasks 1 and 4 constituted the Ph.D. research topic of Sarbajit Ghosal, while Tasks 2 and 3 constituted the Ph.D. research topic of Jon Ebert. Together their doctor… more
Date: December 1, 1994
Creator: Self, S.A.
Partner: UNT Libraries Government Documents Department
open access

Optical properties of fly ash

Description: This task is planned to provide the basic optical properties data in a comprehensive and conveniently usable form. The optical constants (i.e., the components of the complex refractive index m = n - ik) of samples of synthetic slags of controlled compositions will be measured using established techniques involving transmission and surface reflectance methods. The wavelength range will extend from the visible to 12 {mu}m and the temperature range will extend to 2000K. Initially, the optical cons… more
Date: July 1, 1988
Creator: Self, S.A.
Partner: UNT Libraries Government Documents Department
open access

Optical properties of fly ash. Volume 2, Final report

Description: Research performed under this contract was divided into four tasks under the following headings: Task 1, Characterization of fly ash; Task 2, Measurements of the optical constants of slags; Task 3, Calculations of the radiant properties of fly ash dispersions; and Task 4, Measurements of the radiant properties of fly ash dispersions. Tasks 1 and 4 constituted the Ph.D. research topic of Sarbajit Ghosal, while Tasks 2 and 3 constituted the Ph.D. research topic of Jon Ebert. Together their doctor… more
Date: December 1, 1994
Creator: Self, S.A.
Partner: UNT Libraries Government Documents Department
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