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Pt, Pd와 Ph가 담지된 촉매상에서 암모니아와 수소/일산화탄소의 단계별 촉매연소에 관한 연구
황주연(J. Y. Hwang),유인수(I.S. Ryu),이규철(K. C. Lee),이승재(S.J. Lee),노동순(D. S. Noh),이관석(K. S. Rhee),강성규(S.K. Kang) 한국연소학회 2006 KOSCOSYMPOSIUM논문집 Vol.- No.-
본 연구는 Fuel-Nox 제어를 위한 암모니아 중 질소성분의 전환반응에 대한 실험 결과이다. 특히 열분해가스 촉매연소에서 NOx 생성을 줄이기 위한 제어 조건을 제시하였으며, Fuel-NOx 반응 메카니즘 연구의 기초자료를 제시하였다. This study investigated on the conversion of nitrogen component in ammonia gas to control fuel-NOx. Control conditions were found to suppress the production of NOx in the catalytic combustion of the gasified fuels. Also, the results would provide the basis of the theoretical study on fuel-NOx generation mechanism.
강관구(K. Kang),홍성국(S.K. Hong),노동순(D.S. Noh),유홍선(H.S. Ryou) 한국전산유체공학회 2013 한국전산유체공학회지 Vol.18 No.3
A pure oxygen combustion technology is crucial in Carbon Capture and Storage (CCS) technology especially in capturing of CO₂, where CCS will reduce 9 GtCO₂ by 2050, which is 19% of the total CO₂ reduction amount. To make pure oxygen combustion feasible, a regenerative system is required to enhance the efficiency of pure oxygen combustion system. However, an existing air combustion technology is not directly applicable due to the absence of nitrogen that occupies the 78% of air. This study, therefore, investigates the heat and fluid flow in a regenerative system for pure oxygen combustion by using commercial CFD software, FLUENT. Our regenerative system is composed of aluminium packed spheres. The effect of the amount of packed spheres in regenerator and the effect of presence or absence of a bypass of exhaust gas are investigated. The more thermal mass in regenerator makes the steady-state time longer and temperature variation between heating and regenerating cycle smaller. In the case of absence of bypass, the regenerator saturates because of enthalpy imbalance between exhaust gas and oxygen. We find that 40% of exhaust gas is to be bypassed to prevent the saturation of regenerator.
축열 연소시스템의 최적화 구현을 위한 사용자 전용 해석 프로그램의 개발
강관구 ( K. G. Kang ),유수열 ( H. S. Ryou ),유홍선 ( S. Y. Ryou ),김혁주 ( H. J. Kim ),노동순 ( D. S. Noh ) 한국열처리공학회 2003 熱處理工學會誌 Vol.16 No.3
N/A In this study, a user oriented CFD program for optimum design of a regenerative combustion furnace. REBURN was developed. For user`s convenience, user friendly Graphic User Interface was made and the renumbering interface program was developed in order to directly input any generated mesh system from ICEM CFD/FEA. Also an automatic processing system for switching mode was developed. The program was verified through comparing with commercial CFD code about regenerative combustion furnace. Then, numerical simulation of real walking beam furnace used in real industry was performed and the parametric analysis was studied about the arrangement mode. As a results, the uniform temperature was appeared in the cross mode.
양제복(J. B. Yang),김원배(W. B. Kim),노동순(D. S. Noh),동상근(S.K. Dong) 대한기계학회 2001 대한기계학회 춘추학술대회 Vol.2001 No.3
High temperature preheated and diluted air combustion has been developed as the technology to realize higher thermal efficiency. In this type of combustion, there are many interesting phenomena which cannot be observed m room temperture air combustion. The chracteristics of the combustion, investigated using a 6,000 ㎉/h kerosine-fired test facility, are described. The flame is demonstrated to have a blue and green in color and has a large volume. As the preheated air temperature increased up to 1000℃, the NOx emission incrased exponentially over a few hundred ppm with 11% O₂ correction. But, it drastically reduced about 20ppm when the air was diluted from 21% O₂ to 9% O₂.