컴퓨터토모그래피 레이저흡수분광법(CT-TDLAS) 기반 2차원온도분포 산정 Two-Ratios-of-Three-Peaks (2R3P) 알고리듬 개발

최두원; 조경래; 심준환; Yoshihiro Deguchi; 김동혁; 도덕희

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자료유형: 학술저널

저자정보: 최두원 조경래 심준환 Yoshihiro Deguchi 김동혁 도덕희

저널정보: 한국수소및신에너지학회 한국수소및신에너지학회논문집 한국수소 및 신에너지학회 논문집 제27권 제3호

발행연도: 2016.6

수록면: 318 - 327 (10page)

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In order to improve the performance of temperature field measurements by CT-TDLAS (Computer Tomography Tunable Diode Laser Absorption Spectroscopy), a new reconstruction algorithm, named two-ratiosof-three-peaks method is proposed in this paper. Further, two methods for selecting appropriate initial values of the iterative calculation of CT-TDLAS are proposed. One is MLOS (multiplicative line of sight) method and the other one is ALOS (additive line of sight) method. Two-ratios-of-three-peaks (2R3P) algorithm combined with MART (multiplicative algebraic reconstruction technique) is finally developed for the enhancements of reconstructive calculations. The results have been compared with those obtained by the conventional one-ratio-of-two-peaks (1R2P) algorithm. In order to evaluate the performance of this algorithm, numerical test has been performed using phantom Gaussian temperature distributions with 11×11 square mesh. The performance of the constructed algorithm has been demonstrated by comparing the results obtained in actual burner experiments with those obtained by thermocouples. It has been verified that 2R3P algorithm with MART and MLOS showed best performance than that of 1R2P algorithm.

#가상 온도 #레이저흡수분광법 #상호상관 #선상 승산법 #승산대수재구성법 #컴퓨터토모그래피 #Cross-Correlation #CT #MART #MLOS #Phantom Temperature #TDLAS

참고문헌 (10)

참고문헌 신청

T. Kamimoto / 2016 / Validation of the Real-Time 2D Temperature Measurement Method using the CT Tunable Diode Laser Absorption Spectroscopy / Heat Transfer Research 47:193~202

L. Ma / 2008 / Numerical Investigation of Hyperspectral Tomography for Simultaneous Temperature and Concentration Imaging / Applied Optics 47(21):3751~3759

M. Yamakage / 2009 / Development of Direct and Fast Response Exhaust Gas Measurement

F. Wang / 2010 / Two-Dimensional Tomography for Gas Concentration and Temperature Distributions based on Tunable Diode Laser Absorption Spectroscopy / Meas. Sci. Technol 21(4):045301

D. W. Choi / 2016 / Performance Improvement in Temperature Reconstructions of 2-D Tunable Diode Laser Absorption Spectroscopy (TDLAS) / Journal of Thermal Science 25(1):84~89

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