수치해석을 이용한 맥동연소과정 및 NOx 배출특성 해석
Numerical Simulations for Combustion and NOx Emission Characteristics in Oscillating Combustion Burner
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초록
An experimental study was conducted to reduce NOx emission in RT(radiant tube)burner by using oscillating combustion processes in RIST. A solenoid valve gives the various oscillating conditions, such as oscillation frequency, duty ratio of fuel flow. In this study, we used commercial software, CFD-ACE+ to predict combustion and NOx emission characteristics for various experimental oscillation conditions. The effect of oscillation frequency and duty ratio on NOx emission will be discussed in terms of flow field, temperature and equivalence ratio distributions in detail.
Abstract
An experimental study was conducted to reduce NOx emission in RT(radiant tube)burner by using oscillating combustion processes in RIST. A solenoid valve gives the various oscillating conditions, such as oscillation frequency, duty ratio of fuel flow. In this study, we used commercial software, CFD-ACE+ to predict combustion and NOx emission characteristics for various experimental oscillation conditions. The effect of oscillation frequency and duty ratio on NOx emission will be discussed in terms of flow field, temperature and equivalence ratio distributions in detail.
참고문헌 (5)
- O. Charon, "Pulsated O2", fuel flame as a new technique for low NOx emission, 1993, pp.90, 1~12
- 조한창, "맥동연소기술이 접목된 복사관 버너에서의 NOx 배출 특성", 대한기계학회논문집 B, 32(2), pp.100~106 (2008), 대한기계학회
- "CFD-ACE+ V.2008.2 User Manual", ESI CFD Inc, ~, pp.지침서 (2008)
- C. K. Westbrook, "Simplified Reaction Mechanisms for the Oxidation of Hydrocarbon Fuels in Flames", Combustion Science and Technology, 27, pp.31~43 (1981)
- "CFD-ACE+ V.2008.2 Module Manual", ESI CFD Inc, ~, pp.지침서 (2008)