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연료/공기 다단 액체연료 연소기의 연소 특성에 관한 연구
김세원(S.W. Kim),신명철(M.C. Shin),이창엽(C.Y. Lee) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
The low NOx burner, 800㎾ thermal capacity, using light oil is designed and tested to investigate the effects of burner operating parameters on the flame and NOx emission characteristics. The burner is designed to be simultaneously staged by air and fuel. This type of burner has a advantage in NOx reduction. As the fuel rich and lean zone are obviously separated, the thermal hot spots are almost diminished, so that the formation of thermal NOx is restrained.
엑시머 레이저를 이용한 층류 비예혼합 수소화염에서의 2차원적 온도 및 농도계측
김군홍(G.H.Kim),김용모(Y.M.Kim),진성호(S.H.Jin),김세원(S.W.Kim),김경수(G.S.Kim) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.11_1
Rayleigh scattering and planar laser induced predissociative fluorescence are employed for capturing in two-dimensional images of temperature and species concentration in a laminar nonpremixed flame of a diluted hydrogen jet. Rayleigh scattering cross-sections are experimentally obtained at 248nm. Using the spectroscopic data. Fluorescence spectrum of OH and Hot O₂ are captured and two-dimensional images of the hydrogen flame field are successfully visualized by a intensified CCD camera.<br/>
김세원(S. W. Kim),이재규(J. K. Lee) 한국자동차공학회 1994 한국 자동차공학회논문집 Vol.2 No.2
A study on the performance of a Diesel engine with various intake gas compositions other than that of air are performed experimentally. In this study, the concentrations of each of oxygen, nitorgen, carbon dioxide, and argon are changed and their effects on the performance of the engine are investigated paramet- rically. The experiments are performed at constant engine speed condition, and main measured parameters are cylinder pressure, intake gas compositions, fuel consumption rate.<br/> Increase of oxygen concentration up to 24 % improved the performance of the engine generally. The adverse effect was observed when the oxygen concentration was increased over 24 %. Increase of carbon dioxide concentration degraded the performance of the engine, mainly due to the lower specific heat ratio of carbon dioxide. Adding argon gas to the intake gas improved the overall performance. Finally, it is found that two most influencing factors affecting the performance of the Diesel engine in this study of intake gas composition variation are ignition delay and specific heat ratio of the intake gas.<br/> A study on the performance of a Diesel engine with various intake gas compositions other than that of air are performed experimentally. In this study, the concentrations of each of oxygen, nitorgen, carbon dioxide, and argon are changed and their effects on the performance of the engine are investigated paramet- rically. The experiments are performed at constant engine speed condition, and main measured parameters are cylinder pressure, intake gas compositions, fuel consumption rate.<br/> Increase of oxygen concentration up to 24 % improved the performance of the engine generally. The adverse effect was observed when the oxygen concentration was increased over 24 %. Increase of carbon dioxide concentration degraded the performance of the engine, mainly due to the lower specific heat ratio of carbon dioxide. Adding argon gas to the intake gas improved the overall performance. Finally, it is found that two most influencing factors affecting the performance of the Diesel engine in this study of intake gas composition variation are ignition delay and specific heat ratio of the intake gas.<br/>