DOI: 10.5176/2251-1911_CMCGS13.03
Authors: Chun-Lang Yeh
Abstract:
Performance of a CO boiler has a detrimental influence on the operation and production of related industries. In this paper, the reacting flow in a Carbon Monoxide boiler is investigated. The influences of some important parameters related to the geometry of a CO boiler are discussed, including the refractory thickness and the insertion of an ellipsoidal cone. It is found that the skin friction coefficient arises earlier in the DeNOx section when the refractory is thinner. Refractory thickening leads to a lower temperature in the DeNOx section. In
addition, insertion of an ellipsoidal cone can lower the temperature in the DeNOx section. There is a larger skin friction coefficient with a larger ellipsoidal cone angle. It is also found that NOx formation in the DeNOx section can be alleviated by refractory thickening and insertion of an ellipsoidal cone. Finally, based on the result of this research and from a practical point of view, refractory thickening is a preferable choice for reducing friction and temperature in a CO boiler.
Keywords: Carbon Monoxide boiler; reacting flow; DeNOx
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