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27 September 2008 An empirical research in application of dynamic, multispectral-band IR thermal images for investigations of petrochemical furnaces
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Abstract
A few years ago we have developed a patent pending method that allows to increase the reliability of the heater's tube temperature measurements through flames. The applications of this method showed additional potential for investigation of heating medium, i.e. mixture of various gases and aerosols inside flames and flue gases. This paper presents the recently developed, new version of the measuring system based on PtSi IRFPA commercial thermographic type camera. Two additional optical (8 filter wheel) and digital interfaces have been applied. The main special feature of elaborated techniques is the dynamic spectrally matched IR thermography, which bases on forming single images that consist of pixels of chosen statistical value, minimum and maximum, noted during adequately long sequence of thermograms with total independence to the moment of their capture. Sets of these data can be used either directly or as inputs to other artificial images. In this way, additive or suppressed interferences of fluctuating character could be minimized or exhibited, depending on the type of investigations i.e. studying tubes' temperature or energetic features of the flames and flue gases. Some of the results emerged as very promising - in the future they may help in creating a new field of thermal cameras application for furnaces control or steering to further enhance safety and efficiency of furnaces running.
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P. Pregowski, G. Goleniewski, W. Komosa, W. Korytkowski, and Sl. Zwolenik "An empirical research in application of dynamic, multispectral-band IR thermal images for investigations of petrochemical furnaces", Proc. SPIE 7100, Optical Design and Engineering III, 71002B (27 September 2008); https://doi.org/10.1117/12.797110
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