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Proceedings Paper

Advanced multispectral dynamic thermography as a new tool for inspection of gas-fired furnaces
Author(s): Piotr Pregowski; Grzegorz Goleniewski; Wojciech Komosa; Waldemar Korytkowski
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Paper Abstract

The main special feature of elaborated method is that the dynamic IR thermography (DIRT) bases on forming of single image consisting of pixels of chosen minimum (IMAX) or maximum (IMAX) value, noted during adequately long sequence of thermograms with total independence to the moment of its (image's) capture. In this way, additive or suppressed interferences of fluctuating character become bypassed. Due to this method thereafter elaborated in classic way such “artificial thermogram” offers the quality impossible to achieve with a classic “one shot” method. Although preliminary, results obtained clearly show great potential of the method. and confirmed the validity in decreasing errors caused by fluctuating disturbances. In the case of process furnaces of gas-fired type and especially of coal-fired, application of presented solutions should result in significant increasing the reliability of IR thermography application. By use of properly chosen optical filters and algorithm, elaborated method offers a new potential attractive to test temperature problems other than in tubes , as for example symmetry and efficiency of the furnace heaters.

Paper Details

Date Published: 12 April 2004
PDF: 10 pages
Proc. SPIE 5405, Thermosense XXVI, (12 April 2004); doi: 10.1117/12.546806
Show Author Affiliations
Piotr Pregowski, Pregowski Infrared Services (Poland)
Grzegorz Goleniewski, PKN ORLEN S.A. (Poland)
Wojciech Komosa, PKN ORLEN S.A. (Poland)
Waldemar Korytkowski, PKN ORLEN S.A. (Poland)

Published in SPIE Proceedings Vol. 5405:
Thermosense XXVI
Douglas D. Burleigh; K. Elliott Cramer; G. Raymond Peacock, Editor(s)

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