Experimental study on measurement of flame temperature distribution using the two-color method
- 227 Downloads
A novel optical instrumentation system for flame characterization was developed and tested. The two-color system is capable of performing on-line measurement of flame and temperature distribution, providing temporal and spatial characterization of the combustion process. In addition, the system has the advantage of being non-intrusive. The on-line measurement of temperature distribution on a methane-air combustor revealed some interesting characteristics. When air flow rate was kept constant, an increase in CH4 flow rate would enhance the combustion intensity and elevate the flame temperature. While under constant CH4 flow rate, the increase of air flow rate would lead the measured flame temperature first to increase and then decrease. The drop of temperature might partially be caused by the heat losses due to excessive air. However, with insufficient soot particles in the flame, the temperature could be under-evaluated.
Keywordsflame temperature distribution two-color method
Unable to display preview. Download preview PDF.
- ZOU, Yu, LU, Zhenzhong, WANG Shimin. Development and Research on Digital Image Monitoring and Processing of Flame in a Boiler Furnace. Journal of Engineering for Thermal Energy and Power. 1998, 13(76): 261–263Google Scholar
- ZHAO, Wenhua, ZHU, Shuguang, TIAN, Kuo, et al. Pyrometer for the Flame of Coal boilers. Journal of Combustion Science and Technology. 2001, 7(3): 275–277Google Scholar
- ZHOU, Jie. Experimental Study of Flame Temperature Measurement Based on Combustion Flame Radiation Multi-wavelength Analysis. Power Engineering. 1999, 19(6): 460–465Google Scholar
- WANG, Fei, XUE, Fei. Experimental Study and Error Analysis of Flame Temperature Measurement Using color CCD. Journal of Engineering for Thermal Energy and Power. 1998, 13(3): 81–84Google Scholar
- ZHOU, Huaichun, LOU, Xinsheng, DENG Yuankai. Measurement Method of Three Dimensional Combustion Temperature Distribution in Utility Furnaces Based on Image Processing. Proceedings of the Chinese Society for Electrical Engineering, 1997, 17(1): 1–4Google Scholar
- Lu, G, Yan, Y, Ward, D D. Advanced Monitoring, Characterization and Evaluation of Gas-fired Flames in a Utility Boiler. Journal of the Institute of Energy. 2000, 73(494): 43–49Google Scholar
- Lu, G, Yan, Y, Huang, Y, et al. An Intelligence Monitoring and Control System of Combustion Flames. Measurement & Control. 1999, 32(7): 164–168Google Scholar
- ZHOU, Huaichun, LOU, Xinsheng, XIAO, Jiaofang. Experimental Study on Image Processing Temperature Distribution in a Pilot-scale Furnace. Proceedings of the Chinese Society for Electrical Engineering. 1995, 15(5): 295–299Google Scholar
- Dewitt, D P, Nutter, G D. Theory and Practice of Radiation Thermometry. New York, USA: John Wiley & Sons, Inc., 1989Google Scholar
- Huang, Y, Yan, Y. Transient Two-dimensional Temperature Measurement of Open Flames by Dual-spectral Image Analysis. Transaction of the Institute of Measurement and Control. 2000, 22(5): 371–384Google Scholar
- SONG, Yanmin, MA, Renxiong. Experimental Study on Premixing Flame Holder. In: Prof. of the 10th Chinese Engineering Thermophysics Society on Combustion. Qing Dao, 2001. 014036Google Scholar