Lu, G. and Yan, Y. and Cornwell, S. and Whitehouse, M. and Riley, G. (2008) Impact of Co-Firing Coal and Biomass on Flame Characteristics and Stability. Fuel, 87 (7). pp. 1133-1140. ISSN 0016-2361 .
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This paper presents the use of vision-based measurement techniques for the on-line monitoring and characterisation of coal-biomass co-firing flames on an industrial-scale combustion test facility. The characteristic parameters of the flame, including ignition points, brightness, temperature and oscillation frequency, are measured using a vision-based flame monitoring system in an on-line continuous mode. A common type of pulverised coal was fired with five different types of biomass for different proportions ranging from 0% to 20% by weight. Various combustion conditions were created during the test runs, including variations in excess air and the method of biomass injection. The relationships between the flame characteristics and the primary combustion process data are analysed. The results suggest that, due to the varying physical and chemical properties of the biomass fuels, the biomass additions impact on the characteristics of the flame, particularly the flame ignition points and brightness. However, in all cases studied, the flame stability has been found to be little affected by the amount of biomass added provided that the addition is no more than 20%.
|Uncontrolled keywords:||pulverised coal; biomass; co-firing; flame monitoring; image processing|
|Subjects:||T Technology > TA Engineering (General). Civil engineering (General) > TA166 Instrumentation|
|Divisions:||Faculties > Science Technology and Medical Studies > School of Engineering and Digital Arts > Instrumentation, Control and Embedded Systems|
|Depositing User:||Jenny Harries|
|Date Deposited:||21 Apr 2009 11:30|
|Last Modified:||21 May 2011 00:27|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/15486 (The current URI for this page, for reference purposes)|
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