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ANALYSIS OF COMBUSTION MECHANISM AND COMBUSTION OPTIMIZATION OF A 300MW PULVERIZED COAL BOILER

Xiaoqian Ma, Mo Yang, Yuwen Zhang
Frontiers in Heat and Mass Transfer (FHMT) 7 - 36 (2016)


Abstract


Combustion mechanism of a 300 MW pulverized coal boiler is analyzed and the optimization of the performance of the boiler is carried out. The flow field, temperature field, devolatilization, char combustion and CO generation in the boiler furnace under actual condition is obtained by using Fluent. Three methods to improve the efficiency of boiler combustion are proposed based on the pulverized coal combustion mechanism; their feasibilities are verified through numerical simulation and analysis. The three proposed methods to increase the combustion efficiency may give theoretical reference for air arrangement and combustion optimization of the same type of burners.

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DOI: http://dx.doi.org/10.5098/hmt.7.36

ISSN: 2151-8629