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Two-stage numerical simulation for temperature profile in furnace of tangentially fired pulverized coal boiler
- Source :
- Journal of Central South University of Technology. 12:97-101
- Publication Year :
- 2005
- Publisher :
- Springer Science and Business Media LLC, 2005.
-
Abstract
- Considering the fact that the temperature distribution in furnace of a tangential fired pulverized coal boiler is difficult to be measured and monitored, two-stage numerical simulation method was put forward. First, multifield coupling simulation in typical work conditions was carried out off-line with the software CFX-4.3, and then the expression of temperature profile varying with operating parameter was obtained. According to real-time operating parameters, the temperature at arbitrary point of the furnace can be calculated by using this expression. Thus the temperature profile can be shown on-line and monitoring for combustion state in the furnace is realized. The simulation model was checked by the parameters measured in an operating boiler, DG130-9.8/540. The maximum of relative error is less than 12% and the absolute error is less than 120 °C, which shows that the proposed two-stage simulation method is reliable and able to satisfy the requirement of industrial application.
Details
- ISSN :
- 19930666 and 10059784
- Volume :
- 12
- Database :
- OpenAIRE
- Journal :
- Journal of Central South University of Technology
- Accession number :
- edsair.doi...........c117da183c3660dc581a707768480f20