Monitoring oxy-coal flame stability
- Authors: Valliappan, Palaniappan , Wilcox, Steven , Spliethoff, Hartmut , Diego Garcia, Ruth
- Date: 2018
- Type: Text , Conference proceedings
- Relation: 27th IEEE International Symposium on Industrial Electronics, ISIE 2018; Cairns, Australia; 13th-15th June 2018 Vol. 2018-June, p. 847-853
- Full Text: false
- Reviewed:
- Description: This paper presents a novel approach to monitoring the stability of oxy-coal flames. Oxy-coal combustion has the potential to generate high concentrations of carbon dioxide in the exhaust gas stream. This could increase the efficiency of the removal of carbon dioxide emissions from a coal fired utility boiler. In order to convert an existing boiler high levels of flue gas need to be recycled to reduce the combustion zone temperatures, but this can lead to combustion instability. This paper presents an approach using three broadband photodiodes to monitor the infra-red, visible and ultra-violet emissions from an individual flame and then, by using the Wigner-Ville transform, detect unstable flames.
- Description: IEEE International Symposium on Industrial Electronics
Development of a flame monitoring and control system for oxy-coal flames
- Authors: Valliappan, Palaniappan , Wilcox, Steven
- Date: 2017
- Type: Text , Conference proceedings , Conference paper
- Relation: 2017 IEEE International Conference on Mechatronics, ICM 2017; Gippsland, Australia; 13th-15th February 2017 p. 482-486
- Full Text: false
- Reviewed:
- Description: This paper presents a novel approach to the monitoring and control of oxycoal flames when using high levels of recycled flue gas. Oxycoal combustion is one approach to mitigate the emissions of carbon dioxide from coal fired utility boilers but particularly when retrofitting the technology, the recycle of high levels of flue gas can lead to combustion instability. This paper investigates an approach using three broad band photodiodes to monitor the infra-red, visible and ultra-violet emissions from an individual flame and then by a combustion of signal progressing using the Wigner-Ville transform and artificial neural networks to monitor, diagnose and then suggest control actions to maintain a stable flame that has been demonstrated at pilot scale. © 2017 IEEE.
- Description: Proceedings - 2017 IEEE International Conference on Mechatronics, ICM 2017