한국연소학회:학술대회논문집
- 한국연소학회 2001년도 제22회 KOSCI SYMPOSIUM 논문집
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- Pages.156-162
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- 2001
부분 예혼합 화염의 NOx 배출과 화염특성에 관한 실험적 연구
A Study on NOx Emission and the Characteristics of Partially Premixed Flame
초록
The effects of co-flow and the variation of the equivalence ratio on NOx emission were investigated experimentally for unconfined and confined partially premixed flames. The shape, length, temperature of flames and the concentration of burnt gas were measured. Two types of co-flow (parallel and swirling co-flow) were considered. For unconfined flames, flame with parallel co-flow is the longest and the next is flame without co-flow. Flame with swirl is the shortest. The length of swirling flame increases suddenly under certain value of equivalence ratio. EINOx is diminished by the decrease of equivalence ratio. It is found that the unconfining of flame enhances the emission of NOx. The EINOx of unconfined flame with parallel co-flow is less than that of flame without co-flow.