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- W2355974965 abstract "Numerical simulation was performed on the combustion and contamination generation process under the original scheme and four retrofit schemes with different positions of coal reburning injector using conventional pulverized coal as reburning fuel with the rated load in a 410 t/h tangentially fired furnace in a domestic thermal power plant with CFD software platform. Results show that thermal NOx can be restrained since the highest temperature decreases when the volume heat load qv of burner zone decreases due to extending the burner zone in the reburning retrofit. The better NOx reduction can be achieved since the lower NOx concentration from the main combustion zone where the low oxygen combustion can restrain the NOx. The lower position of reburning injector, the less NOx reduction can be achieved due to the disturbance effect from main combustion zone. On the other hand, the higher position of reburning injector, the less NOx reduction, the higher temperature of the outlet of furnace and the higher unburned carbon of fly ash can also be achieved due to the shorter settle time of reburning coal, but the better NOx reduction can be achieved through choosing an appropriate position of reburning injector. The NOx reduction of 47.66% can be achieved by using low oxygen primary combustion zone, appropriate position of reburning injector, and OFA. Further more, all parameters of the boiler run well and thermal efficiency of the boiler is increased slightly. Therefore, the satisfied NOx reduction can be achieved using conventional pulverized coal as reburning fuel for the low ash content and flammable bituminous coals. Engineering testing shows that the results from numerical simulation are in conformity with real operation condition." @default.
- W2355974965 created "2016-06-24" @default.
- W2355974965 creator A5051768328 @default.
- W2355974965 date "2008-01-01" @default.
- W2355974965 modified "2023-09-26" @default.
- W2355974965 title "Selection of Position of Pulverized Coal Reburning Injector in Low NO_x Retrofit Schemes" @default.
- W2355974965 hasPublicationYear "2008" @default.
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