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마이크로 스케일 연소기의 백금 촉매 반응 모델링과 물질 전달 특성에 대한 연구
이광구(Gwang G. LEE) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
Numerical analysis is applied to model Pt-catalyzed reaction in a micro-scale combustor fueled by butane. The reaction constants of catalytic oxidation are determined from plug flow model with the experimental data. Orders of magnitude between the chemical reaction rate and the mass transfer rate are carefully compared to reveal which mechanism plays a dominant role in the total fuel conversion rate. For various conditions of fuel flow rate and surface temperature, the profiles of Sherwood numbers are investigated to study the characteristics of the mass transport phenomena in the micro-tube combustor.
이광구(G.G.Lee),허강열(K.Y.Huh) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.11_2
The PIV system and its image analysis software are developed to measure an instantaneous velocity. field. An artificial image is generated and tested to give a proper autocorrelation im-age. The PIV system is applied to a rectangular duct flow as a basic study and a reasonable two dimensional instantaneous velocity field is obtained.<br/>