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Influence of different cover ratios on Gas-particle flow characteristics of a centrally-fuel-rich primary air burner: experiment and simulation.
- Source :
- Procedia Environmental Sciences; Dec2011 Part C, Vol. 11, p1513-1521, 9p
- Publication Year :
- 2011
-
Abstract
- Abstract: The flow field for different cover ratios within a three-level conical ring concentrator of a centrally-fuel-rich swirl coal combustion burner has been studied both experimentally and numerically. A particle dynamics anemometer measurement system was employed in the study to measure velocity and particle volume flux after the outlet of third-level ring. And the numerical simulations were used to calculate the flow field in the conical ring region. In each cross-section, after the outlet of third-level ring, concentration ratio for each cover ratio is always larger than 2. With conical ring concentrator in the primary air tube, the coal concentration can be concentrated to a suitable range. In the cross-sections 0.5<x/D<4.0, as cover ratio increases, concentration ratio decreases and resistance coefficient increases. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 18780296
- Volume :
- 11
- Database :
- Supplemental Index
- Journal :
- Procedia Environmental Sciences
- Publication Type :
- Academic Journal
- Accession number :
- 70371474
- Full Text :
- https://doi.org/10.1016/j.proenv.2011.12.228