Characterisation of an Oxy-Coal Flame through Digital Imaging

Smart, John and Lu, Gang and Yan, Yong and Riley, Gerry (2010) Characterisation of an Oxy-Coal Flame through Digital Imaging. Combustion and Flame, 157 (6). pp. 1132-1139. ISSN 0010-2180. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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This paper presents investigations into the impact of oxy-fuel combustion on flame characteristics through the application of digital imaging and image processing techniques. The characteristic parameters of the flame are derived from flame images that are captured using a vision-based flame monitoring system. Experiments were carried out on a 0.5MWth coal combustion test facility. Different flue gas recycle ratios and furnace oxygen levels were created for two different coals. The characteristics of the flame and the correlation between the measured flame parameters and corresponding combustion conditions are described and discussed. The results show that the flame temperature decreases with the recycle ratio for both test coals, suggesting that the flame temperature is effectively controlled by the flue gas recycle ratio. The presence of high levels of CO2 at high flue gas recycle ratios may result in delayed combustion and thus has a detrimental effect on the flame stability.

Item Type: Article
Uncontrolled keywords: pulverised coal, oxy-fuel, flame monitoring, CCD camera, image processing
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA1637 Image Analysis, Image Processing
Divisions: Faculties > Science Technology and Medical Studies > School of Engineering and Digital Arts > Instrumentation, Control and Embedded Systems
Depositing User: J. Harries
Date Deposited: 23 Apr 2010 10:35
Last Modified: 29 May 2014 13:24
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