Improvement of low nitrogen combustion of storage pulverizing system with hot air used as primary air

Abstract

Abstract:

Abstract:To lower NOx emission mass concentration,based on the characteristics of tertiary air in the storage pulverizing system with hot air uses as primary air,the author indicated an improvement strategy by separating tertiary air by different concentration,and let denser tertiary air into the middle and bottom of combustor.After comparison of six working conditions by using computational fluid dynamics (CFD) software,this improvement is effective to lower NOx emission mass concentration and ensure the burn up rate of pulverized coal.

Key words: ">Keywords:">storage pulverizing system with hot air uses as primary air">；">tertiary air">；">NO">x ">mass concentration">；">low ">nitrogen combustion">；">numerical simulation

YI Zuyao. Improvement of low nitrogen combustion of storage pulverizing system with hot air used as primary air[J]. Huadian Technology, 2015, 37(11): 58-61.

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Improvement of low nitrogen combustion of storage pulverizing system with hot air used as primary air

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