Numerical study of NOx reduction by reburning mechanically-activated micronized coal in a full-scale tangentially-fired boiler : доклад, тезисы доклада
доклад, тезисы доклада, статья из сборника материалов конференций
Библиографическое описание:Numerical study of NOx reduction by reburning mechanically-activated micronized coal in a full-scale tangentially-fired boiler : доклад, тезисы доклада / M. Chernetskiy, A. Dekterev, K. Hanjalić. - Текст : непосредственный // Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer : 8 / 8th International Symposium on Turbulence, Heat and Mass Transfer, THMT 2015 (2015 ; 15.09 - 18.09 ; Sarajevo) : Begell House Inc., 2015. - P. 779-782.
Аннотация:The paper presents some results of numerical simulation of the effects of reburning of mechanicallyactivated micronized coal on NOx reduction in a tangentially fired boiler of 500 t/h steam production. The conventional RANS approach was used to compute two-phase (reactive dispersed particles in gaseous medium) multi-component system, with some modifications of models of particle heat transfer and their reactions. The comprehensive model was earlier verified in simulation of an 5 MW experimental combustor as well as in a full-scale real boiler. The comparison with the standard firing with pulverized coal showed that reburning of non-activated fine coal leads to a NOx reduction by about 20%, but increases the unburnt carbon residual by 23%. However, reburning of mechanically-activated coal of the same granulation reduces NOx by 30% and also diminishes the unburnt residual by 35%, demonstrating that reburning in general, but especially of activated micronized coal, is a feasible option for achieving significant reduction in NOx emission.
Источник:Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer
Номера страниц:779-782
Держатель оригинала документа:Delft University of Technology,Chem. Eng. Dept., Kutateladze Institute of Thermophysics,SB RAS, Novosibirsk State University, Siberian Federal University
Мероприятие:International Symposium on Turbulence, Heat and Mass Transfer, THMT 2015 (Sarajevo, 2015 ; 15.09 - 18.09)
Количество экземпляров:
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