한국연소학회:학술대회논문집
- 한국연소학회 2006년도 제32회 KOSCO SYMPOSIUM 논문집
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- Pages.63-68
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- 2006
산화제 입구 속도에 따른 0.2MW 순산소 연소기의 NO 배출 특성
Effects of Oxidizer Inlet Velocity on NO Emission characteristics of 0.2MW Oxy-Fuel Combustor
- 발행 : 2006.04.14
초록
Effects of oxidizer inlet velocity on NO emission characteristics of 0.2MW oxy-fuel combustor have been experimentally investigated. The NO formation process in the oxy-fuel combustion is extremely sensitive even for the small fraction of nitrogen in oxidizer. By increasing the oxidizer velocity, flame length is reduced due to the enhanced turbulent mixing. The increased oxidizer velocity also results in the decreased flame temperature through the elevated entrainment rate of the recirculated product and the corresponding NO emission is drastically decreased. Experimental results clearly indicate that the entrained product gases play a crucial role to decrease the temperature at the flame zone and the post flame zone where the thermal NO is mainly formed.