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홍종성(Jongsung Hong),서효원(Hyowon Suh) (사)한국CDE학회 2016 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2016 No.동계
Outcomes at the product development phase can be registered and managed as unstructured data format such as documentation, drawings, emails etc. Except for the information which are formally authorized and uploaded into the as well defined system, still very much authorized engineering information remains as unstructured data and they are securely stored in the system’s repository. This project introduces the procedures of structuring contextual data from unstructured data as well as the methods how contextual data created from unstructured data can be more effectively used for product manufacturing. Currently, the methods suggested in this document have not been applied in company actual works. However, this project was motivated to find the most appropriate and effective methods that can be applied in general industries and to suggest a realistic, performable, and sharable solution.
효율적 수소생산을 위한 디젤개질기의 시동 및 운전 기법에 관한 연구
강인용(Inyong Kang),배중면(Joongmyeon Bae),임성광(Sungkwang Lim),홍종성(Jongsung Hong),이신구(Shinku Lee),배규종(Gyujong Bae) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
Reformer requires low energy to reach steady state, and minimal start-up time to avoid solid carbon formation during operation. As known, diesel autothermal reforming(ATR) is started by lighting off fuel and air mixture. The mixing ratio is dominating factor which governs startup time and quantity(or degree) of carbon deposition during oxidation reaction. Once reaction temperature is reached, it is controlled by mixing ratio of reactants such as fuel, air and water by the nature of fast reaction control as well as simple system packaging. In this paper, we report the manipulation effect of each reformer operation parameters such as GHSV(gas hourly space velocity), H₂O/C(steam to carbon ratio) and O₂/C(oxygen to carbon ratio). We find the O₂/C ratio seem to be dominant to control ATR reaction. But the ATR reaction was so sensitive that manipulation of O₂/C ratio was lead to severe carbon formation due to large variation of temperature.