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Proceedings Paper

Detection and analysis of emitted radiation for advanced monitoring and control of combustors
Author(s): J. Ballester; A. Sanz; R. Hernandez; A. Smolarz
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Paper Abstract

The permanent optimization of combustion equipment could provide very important benefits in terms of efficiency, reliability and reduced pollution. However, current capabilities for monitoring and control of industrial flames are very limited; the lack of reliable diagnostic techniques is, most probably, the main obstacle to achieve those goals. Novel instrumentation systems based on the processing of the radiation emitted by the flames could help greatly to fill this gap, as radiation signals are known to contain very rich information about flame properties Optical sensors offer the benefit of being selective, rapid and able to gather data from extremely hostile environments. Passive optical sensors offer the further advantages of simplicity and low cost. With the rapidly growing capability of sensor hardware, there is an increased interest and need to develop data interpretation strategies that will allow optical flame emission data to be converted into meaningful combustor state information. The present work describes new results achieved on the use of optical sensors for the development of advanced monitoring systems of lean-premixed flames representative of gas turbine combustors. Different complementary signals have been analyzed: broad band emission using a Si photodiode, a narrow band around 310 nm measured with a photomultiplier and measurement of UV+VIS emission spectra. The signals have been processed using both conventional and advanced methods. The results obtained demonstrate that optical sensors can yield useful, instantaneous information on the actual flame properties, not available with the sensors currently used in practical combustion systems.

Paper Details

Date Published: 6 October 2005
PDF: 11 pages
Proc. SPIE 5948, Photonics Applications in Industry and Research IV, 59482H (6 October 2005); doi: 10.1117/12.622967
Show Author Affiliations
J. Ballester, Univ. de Zaragoza (Spain)
A. Sanz, Univ. de Zaragoza (Spain)
R. Hernandez, Univ. de Zaragoza (Spain)
A. Smolarz, Technical Univ. of Lublin (Poland)


Published in SPIE Proceedings Vol. 5948:
Photonics Applications in Industry and Research IV
Ryszard S. Romaniuk; Stefan Simrock; Vladimir M. Lutkovski, Editor(s)

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