고온공기를 이용한 제트확산화염의 연소특성에 관한 실험

조은성; 대야건; 소림수소; 정석호

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이 논문의 연구 히스토리 (2)

2004

고온공기를 이용한 제트확산화염의 연소특성에 관한 실험

조은성 , 대야건 , 소림수소 외 1명 대한기계학회 논문집 B권 2004.03 학술저널

2003

제트확산화염의 고온공기연소특성에 관한 실험적 연구

조은성 , 大野建 , 小林秀昭 외 1명 KOSCO SYMPOSIUM 논문집 2003.01 학술대회자료

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For the development of high efficiency and low emission combustion systems, high temperature air combustion technology has been tested by utilizing preheated air over 1100 K and exhaust gas recirculation. In this system, combustion air is diluted with large amount of recirculated exhaust gases, such that the oxygen concentration is relatively low in the reaction zone, leading to low flame temperature. Since, the temperature fluctuations and sound emissions form the flame are small and flame luminosity is low, the combustion mode is expected to be flameless or mild combustion. Experiment was performed to investigate the turbulent flame structure and NO^x emission characteristics in the high temperature air combustion focused on coflowing jet diffusion flames which has a fundamental structure of many practical combustion systems. The effect of turbulence has also been evaluated by installing perforated plate in the oxidizer inlet nozzle. LPG was used as a fuel. Results showed that even though NO^x emission is sensitive to the combustion air temperature, the present high temperature air combustion system produce low NO^x emission because it is operated in low oxygen concentration condition by the high exhaust gas recirculation.