MONITORING POWER PLANT EFFICIENCY USING THE MICROWAVE-EXCITED PHOTOACOUSTIC EFFECT TO MEASURE UNBURNED CARBON

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Three test instruments are being evaluated to determine the feasibility of using photoacoustic technology for measuring unburned carbon in fly ash. The first test instrument is a single microwave frequency system previously constructed to measure photo-acoustic signals in an off-line configuration. This system was assembled and used to test parameters thought important to photo-acoustic signal output. A standard modulation frequency was chosen based upon signal to noise data gained from experimentation. Experiments were conducted during the seventh quarter to locate and eliminate microwave leakage from the off-line fly ash monitor. A preliminary cold-flow on-line fly ash monitor has been designed … continued below

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9 pages

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Brown, Robert C.; Weber, Robert J. & Sweterlitsch, Jeff July 1, 2003.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by the UNT Libraries Government Documents Department to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 29 times. More information about this report can be viewed below.

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  • Iowa State University
    Publisher Info: Iowa State University, Ames, IA (United States)
    Place of Publication: Ames, Iowa

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Three test instruments are being evaluated to determine the feasibility of using photoacoustic technology for measuring unburned carbon in fly ash. The first test instrument is a single microwave frequency system previously constructed to measure photo-acoustic signals in an off-line configuration. This system was assembled and used to test parameters thought important to photo-acoustic signal output. A standard modulation frequency was chosen based upon signal to noise data gained from experimentation. Experiments were conducted during the seventh quarter to locate and eliminate microwave leakage from the off-line fly ash monitor. A preliminary cold-flow on-line fly ash monitor has been designed to evaluate the flow characteristics of the fly ash. Upon successful demonstration of repeatable, regular flow of the fly ash, design and construction of the hot-flow on-line fly ash monitor will commence.

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9 pages

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OSTI as DE00821845

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  • Other Information: PBD: 1 Jul 2003

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  • July 1, 2003

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  • Dec. 3, 2015, 9:30 a.m.

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  • April 11, 2022, 5:27 p.m.

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Brown, Robert C.; Weber, Robert J. & Sweterlitsch, Jeff. MONITORING POWER PLANT EFFICIENCY USING THE MICROWAVE-EXCITED PHOTOACOUSTIC EFFECT TO MEASURE UNBURNED CARBON, report, July 1, 2003; Ames, Iowa. (https://digital.library.unt.edu/ark:/67531/metadc779824/: accessed June 3, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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