Journal article
An intelligent monitoring system for the detection of slag deposition on a pulverized coal fired burner
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, Vol.219(5), pp.383-394
2005
Abstract
The objective of this paper is to describe the further development of a monitoring system to detect the presence of so-called burner eyebrows, i.e. relatively large deposits of slag around the burner quarl in pulverized coal fired boilers. Experiments were undertaken with a range of coals and with various artificial eyebrows constructed from cast refractory inserts. The system uses a microphone to detect combustion noise and an infrared sensor which measures flame radiation, and the signals from these cheap, easily installed sensors were analyzed by a hybrid neural network. In tests with two coals, the system was able to distinguish the different eyebrows with a high degree of accuracy if representative data were used to train the network for each particular coal. In further tests with a range of six different coals, the system was able to distinguish between a clean burner and one fitted with a particular sized eyebrow. In this case, it proved to be possible to use only the features from three of the coals in the training process and the data from the remaining fuels for validation. The monitoring system, therefore, appears to be relatively independent of changes to the coal fired by the burner if trained with a representative range of coals. Finally, this paper presents a possible method to detect burner eyebrows via the evaluation of so-called 'eyebrow indices' using a self-organizing map which is trained solely using clean burner sensor patterns. © IMechE 2005.
Details
- Title
- An intelligent monitoring system for the detection of slag deposition on a pulverized coal fired burner
- Authors
- C K Tan (Author) - University of GlamorganSteven Wilcox (Author) - University of GlamorganJohn K Ward (Author) - University of GlamorganM Lewitt (Author) - University of Glamorgan
- Publication details
- Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, Vol.219(5), pp.383-394
- Publisher
- Sage Publications Ltd.
- Date published
- 2005
- DOI
- 10.1243/095765005X31135
- ISSN
- 0957-6509; 0957-6509
- Organisation Unit
- Office of the Deputy Vice-Chancellor (Academic); University of the Sunshine Coast, Queensland
- Language
- English
- Record Identifier
- 99513906602621
- Output Type
- Journal article
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- Web Of Science research areas
- Engineering, Mechanical
- Thermodynamics