C108 MEASUREMENT OF GAS TEMPERATURE PROFILE USING SPECTRAL INTENSITY FROM CO_2 4.3 μm BAND(Optical measurement/solar energy)
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概要
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Spectral remote sensing (SRS) method for determining the temperature profile along a line-of-sight is investigated experimentally. Quartz tube, within which combustion gas flows, is used as the test section. The inversion procedure is carried out with a line-by-line (LBL) method and a CK-based WNB model. The optimal gas temperature profile, that minimizes the error between the measured narrow band intensities around the CO_2 4.3 μm band and the calculated ones, is obtained as the result of the inversion process. The gas temperature is also measured with a shielded thermocouple and corrected for the error. The results show that the front, center and back temperatures are within errors of 1%, 4% and 12%, respectively. SRS technique shows poor performance in measuring cold gas temperatures behind a hot layer. The reconstructed temperature profile in the front region is, however, in good agreement with the thermocouple reading. The potential applicability of SRS is positively demonstrated and current technical limitations are also discussed.
- 一般社団法人日本機械学会の論文
- 2000-10-01
著者
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Hyun Jae
Department Of Chemical And Biological Engineering Korea University
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SONG Tae-Ho
Department of Mechanical Engineering
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Song Tae-ho
Department Of Mechanical Engineering Korea Advanced Institute Of Science And Technology
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Woo Su-Wan
Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology
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Woo Su-wan
Department Of Mechanical Engineering Korea Advanced Institute Of Science And Technology
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