Smart flame scanners -- Myth or reality?
- PSI Technologies, Andover, MA (United States)
Based on many years of combustion experience in utility and industrial boilers, the authors discovered a new source of combustion information in temporal fluctuations of conventional, readily available measurements, such as flame radiation and flue gas constituents. Numerous data have been collected and published to confirm that the fluctuating (AC) component of a flame signal is highly sensitive to changes in combustion conditions or disturbances in the controlled flame. The main question is whether they could extract useful information from the chaotic and noisy flame environment, i.e. correlate flame fluctuations with certain parameters characterizing individual burner flames, such as fuel-to-air ratio, NOX` unburned carbon, flame stability, etc. In this presentation, the authors are happy to report that they were able to prove experimentally that the temporal frequency component of burner flame radiation, which is usually filtered out as useless noise, can be correlated to important parameters of the combustion process, such as fuel-to-air ratio, NO{sub x} emissions and flame stability for individual burners, and can be developed into a powerful diagnostic toot to characterize the efficiency and emissions of combustion process. Their method can be applied to almost all combustion sources, including utility and industrial boilers. It allows optimization of the operation of individual burners, increasing the overall combustion efficiency and reducing NO{sub x} emissions. This is particularly important today when combustion technology is in search for cost-effective methods of emissions reduction and compliance with the Clean Air Act requirements.
- OSTI ID:
- 94262
- Report Number(s):
- CONF-950414-; TRN: IM9538%%235
- Resource Relation:
- Conference: 57. annual American power conference, Chicago, IL (United States), 18-20 Apr 1995; Other Information: PBD: 1995; Related Information: Is Part Of Proceedings of the American Power Conference: Volume 57-I; PB: 874 p.
- Country of Publication:
- United States
- Language:
- English
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