Real-time 2D Concentration Measurement of CH4 in Oscillating Flames Using CT Tunable Diode Laser Absorption Spectroscopy
DOI:
https://doi.org/10.5890/JAND.2015.09.009Abstract
Foreign Object Debris (FOD) is debris or article alien, which may One of the major problems of gas turbine combustors is the combustion oscillation. The combustion oscillation of gas turbines has many complex causes such as pressure fluctuations, combustion instabilities, and mechanical designs of the combustion chamber. Although the significant research efforts have been dedicated to this topic, the combustion oscillation problems have not yet been solved because of its complexity and nonlinearity. In this study, the theoretical and experimental research has been conducted in order to develop the noncontact and fast response 2D CH4 distribution measurement method to elucidate nonlinear combustion oscillation problems. The method is based on a computed tomography (CT) method using tunable diode laser absorption spectroscopy (TDLAS). The CT-TDLAS method was applied to oscillating flames and the time resolved 2D CH4 concentration distributions were successfully measured using 16 path CT-TDLAS measurement cell. CT-TDLAS has the kHz response time and the method enables the real-time 2D species concentration measurement to be applicable to the nonlinear phenomena of combustion oscillation problems in gas turbines.References
[1] Huang, Y. and Yang, V. (2005), Effect of swirl on combustion dynamics in a lean-premixed swirl-stabilized combustor, Proceedings of the Combustion Institute, 30, 1775-1782.
[2] Yamakage, M., Muta, K., Deguchi, Y., Fukada, S., Iwase, T., and Yoshida, T. (2008), Development of direct and fast response exhaust gas measurement, SAE Paper 20081298.
[3] Zaatar, Y., Bechara, J., Khoury, A., Zaouk, D., and Charles, J.P. (2000), Diode laser sensor for process control and environmental monitoring, Applied Energy, 65, 107-113.
[4] Liu, X., Jeffries, J.B., Hanson, R.K., Hinckley, K.M., and Woodmansee, M.A. (2006), Development of a tunable diode laser sensor for measurements of gas turbine exhaust temperature, Applied Physics B, 82(3), 469-478.
[5] Ax, H., Stopper, U., Meier, W., Aigner, M., and Güthe, F. (2010), Experimental analysis of the combustion behavior of a gas turbine burner by laser measurement techniques, Journal of Engineering for Gas Turbines and Power, 132(5), p. 051503/1-051503/9.
[6] Deguchi, Y., Noda, M., Fukuda, Y., Ichinose, Y., Endo, Y., Inada, M., Abe, Y., and Iwasaki, S. (2002), Industrial applications of temperature and species concentration monitoring using laser diagnostics, Measurement Science and Technology, 13(10), R103-R115.
[7] Deguchi, Y. (2011), Industrial applications of Laser Diagnostics, CRS Press, Taylor & Francis.
[8] Wang, F., Cen, K.F., Li, N., Jeffries, J.B., Huang, Q.X., Yan, J.H., and Chi, Y. (2010), Two-dimensional tomography for gas concentration and temperature distributions based on tunable diode laser absorption spectroscopy, Measurement Science and Technology, 21, 045301.
[9] Wright, P., Terzijaa, N., Davidsona, J.L., Garcia-Castillo, S., Garcia-Stewart, C., Pegrumb, S., Colbourneb, S., Turnerb, P., Crossleyc, S. D., Litt, T., Murrayc, S., Ozanyana, K.B., and McCanna, H. (2010), High-speed chemical species tomography in a multi-cylinder automotive engine, Chemical Engineering Journal, 158(1), 2-10.
[10] Ma, L. and Cai, W. (2008), Numerical investigation of hyperspectral tomography for simultaneous temperature and concentration imaging, Applied Optics, 47(21), 3751-3759.
[11] Deguchi, Y., Yasui, D., and Adachi, A. (2012), Development of 2D temperature and concentration measurement method using tunable diode laser absorption spectroscopy, Journal of Mechanics Engineering and Automation, 2(9), 543-549.
[12] Deguchi, Y., Kamimoto, T., Wang, Z.Z., Yan, J.J., Liu, J.P., Watanabe, H., and Kurose, R. (2014), Applications of laser diagnostics to thermal power plants and engines, Applied Thermal Engineering, 73, 1453-1464
[13] Pal, S. and McCann, H. (2011), Auto-digital gain balancing: a new detection scheme for high-speed chemical species tomography of minor constituents, Measurement Science and Technology, 22(11), 115304.
[14] Terzija, N., Davidson, J. L., Garcia-Stewart, C.A., Wright, P., Ozanyan, K.B., Pegrum, S., Litt, T.J., and McCann, H. (2008), Image optimization for chemical species tomography with an irregular and sparse beam array, Measurement Science and Technology, 19(9), 094007.
[15] Ma, L., Li, X.,1 Sanders, S.T., Caswell Andrew, W., Roy, S., Plemmons, D.H., and Gord, J.R. (2013), 50-kHz-rate 2D imaging of temperature and H2O concentration at the exhaust plane of a J85 engine using hyperspectral tomography, Optics Express, 21(1), 1152-1162.
[16] Cai, W. and Kaminski, C.F. (2014), A tomographic technique for the simultaneous imaging of temperature, chemical species, and pressure in reactive flows using absorption spectroscopy with frequency-agile lasers, Applied Physics Letter, 104, 034101.
[17] Cai, W. and Kaminski, C.F. (2014), Multiplexed absorption tomography with calibration-free wavelength modulation spectroscopy, Applied Physics Letter, 104, 154106.
[18] Rothman, L.S., Gordon, I.E., Barbe, A., ChrisBenner, D., Bernath, P.F., Birk, M., Boudon, V., Brown, L.R., Campargue, A., Champion, J.P., Chance, K., Coudert, L.H., Dana, V., Devi, V.M., Fally, S., Flaud, J.M., Gamache, R.R., Goldman, A., Jacquemart, D., Kleiner, I., Lacome, N., Lafferty, W.J., Mandin, J.-Y., Massie, S.T., Mikhailenko, S.N., Miller, C.E., Moazzen-Ahmadi, N., Naumenko, O.V., Nikitin, A.V., Orphal, J., Perevalov, V.I., Perrin, A., Predoi-Cross, A., Rinsland, C.P., Rotger, M., Simeckova, M., Smith, M.A.H., Sung, K., Tashkun, S.A., Tennyson, J., Toth, R.A., Vandaele, A.C. and VanderAuwera, J. (2009), The HITRAN2008 molecular spectroscopic database, Journal of Quantitative Spectroscopy & Radiative Transfer, 110, 533-572.
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