Microwave excited photoacoustic effect carbon monitor

Details Microwave excited photoacoustic effect carbon monitor Microwave excited photoacoustic effect carbon monitor

1994-08-30

1996-07-30

Chilcot, Richard

Measuring and testing

Gas analysis

Gas of combustion

324637, 73 2401, G04N 700

Patent

active

055400795

ABSTRACT:
A method and apparatus for directing modulated microwave radiation at fly ash which absorbs the microwave energy and, in turn, emits minute acoustical waves. Those acoustic waves are measured by a microphone to determine the carbon content of the fly ash.

REFERENCES:
patent: 4705409 (1987-11-01), Trerice
patent: 4899671 (1990-02-01), Bass
patent: 5060507 (1991-10-01), Urmson et al.
patent: 5069551 (1991-12-01), Brown
patent: 5112215 (1992-05-01), Frish et al.
patent: 5299692 (1994-04-01), Nelson et al.
patent: 5369369 (1994-11-01), Cutmore
R. C. Brown et al., "On-Line Determination of Unburned Carbon in Airborne Fly Ash", Journal of Engineering for Gas Turbines and Power, 112, 597-601 (Oct. 1990).
"Carbon-In-Ash Monitors", EPRI M&D Center Technology Review, 1-15 (Feb. 1994).
T. D'Annunzio, Brochure entitled "Microwave-based Carbon-In-Ash Monitoring System Demonstrated at Eddystone", EPRI Innovators with EPRI Technology, Electric Power Research Institute, Inc. (Dec. 1993).
G. Diebold et al., "Observation of the optoacoustic effect in the microwave region", Applied Physics Letters, 29, 447-449 (Oct. 1, 1976).
A. M. DiGioia, Jr., et al., "Reducing Power Generation Costs Via On-Line Measurement and Reduction of Carbon in Fly Ash", presented at the Southeastern Electric Exchange Meeting, Bal Harbour, FL, pp. 1-16 (Jun. 3, 1988).
J. Dykstra et al., "On-Line Monitoring of Carbon Loadings in Fluidized-Bed Fly Ash", 11th Annual Conference of Fluidized Bed Combustion, pp. 7-12, Quebec, Canada (Apr. 1991).
F. R. Faxvog et al., "Carbon aerosol visibility vs. particle size distribution", Applied Optics, 17, 2612-2616 (Aug. 15, 1978).
P. G. W. Hawksley et al. in Measurement of Solids in Flue Gases (Second Edition); P. G. W. Hawksley, Ed.; The Institute of Fuel: London (1977)--enclosed are the Title page, Copyright Page, and Table of Contents (pp. vi-vii).
Noise Control in Industry; J. D. Webb, Ed.; Sound Research Laboratories Limited: Suffolk, England (1976)--enclosed are the Title page, Copyright Page, and Table of Contents (pp. v-viii).
Optoacoustic Spectroscopy and Detection; Y-H. Pao, Ed.; Academic Press, Inc.: New York (1977)--enclosed are the Title Page, Copyright Page, and Table of Contents (pp. v-vi).
D. M. Roessler et al., "Optoacoustic measurement of optical absorption in acetylene smoke", J. Opt. Soc. Am., 69, 1699-1704 (Dec. 1979).
A. Rosencwaig in Photoacoustics and Photoacoustic Spectroscopy; John Wiley & Sons: New York (1980)--enclosed are the Title page, Copyright Page, and Table of Contents (pp. vii-xii).
B. D. Sowerby et al., "On-Line Analysis in Coal-Fired Power Stations", presented at the Ninth International Conference on Coal Research, Washington DC, 9 pages (Oct. 13-16, 1991).
"Standard Test Method for Ash in the Analysis Sample of Coal and Coke from Coal", Annual Book of ASTM Standards, 5.05, Designation D3174-89, pp. 302-304 (1989).

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