Multifunctional industrial combustion process monitoring with tunable diode lasers

William A. Von Drasek; Olivier Charon; Ken Mulderink; David M. Sonnenfroh; Mark G. Allen

doi:10.1117/12.417388

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13 February 2001 Multifunctional industrial combustion process monitoring with tunable diode lasers

William A. Von Drasek, Olivier Charon, Ken Mulderink, David M. Sonnenfroh, Mark G. Allen

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Proceedings Volume 4201, Optical Methods for Industrial Processes; (2001) https://doi.org/10.1117/12.417388
Event: Environmental and Industrial Sensing, 2000, Boston, MA, United States

Abstract

12 To address the inherent issues with extractive sampling, Air Liquide and PSI are collaborating on the development of an in-situ multi-functional near-IR tunable diode laser system. The system is specifically targeted for application in harsh combustion environments with flue gas temperatures > 1600 degree(s)C and high particle densities. The multiplexing capability of the diode laser system allows near simultaneous detection of CO, O₂, and H₂O. These are essential species in characterizing the combustion state of the process, i.e., fuel-rich or fuel-lean, and the flue gas temperature. Sensor development and testing are conducted on a 700 kW oxy-fuel pilot furnace to evaluate the performance under simulated industrial conditions. Here we present pilot test results for dynamic stoichiometry changes, effect of particle entrainment, and air infiltration monitoring.

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William A. Von Drasek, Olivier Charon, Ken Mulderink, David M. Sonnenfroh, and Mark G. Allen "Multifunctional industrial combustion process monitoring with tunable diode lasers", Proc. SPIE 4201, Optical Methods for Industrial Processes, (13 February 2001); https://doi.org/10.1117/12.417388

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