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Seongrae Lim(임성래),Heesun Yoon(윤희선),Gahee Kim(김가희),Byunghwan Um(엄병환) 한국신재생에너지학회 2021 한국신재생에너지학회 학술대회논문집 Vol.2021 No.7
Nowadays, the need for alternative energy source has grown due to global climate issues. Among various renewable energy sources, biomass-especially herbaceous biomass is considered to be a reasonable solution for domestic situation. In this work, Korean native kenaf was treated with hydrothermal carbonization (HTC) to produce solid biofuel called hydrochar. To acquire enhanced property of hydrochar, HTC was performed under different solid-liquid ratio, temperature and time. Elemental, physical and chemical properties of hydrochar samples were analyzed for in-depth comparison of its fuel characteristics. By searching optimal of key parameter of producing kenaf hydrochar through current study, further utilization of domestic biomass fuel might be available.
타이어 성능 해석 자동화 및 최적화 프로세스 개발에 관한 연구
이진환(Jinhwan Lee),송병철(ByoungCheol Song),임종현(Jonghyun Lim),김성래(Seongrae Kim),성기득(Kideug Sung) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
Tires should be satisfied various performances such as R&H, NVH, traction, and etc. To design tires considering these performances, we applied a multi-objective optimization method using metamodel to tires design and a finite element analysis to predict tire’s performances. However, building metamodel requires many repeatedly jobs for FEA in tire design optimization. In this study, to overcome these problems, we develped the FEA automation and design optimization process for tire design using commercial software Isight and the in-house code, and applied the process to a shape design optimization of tire contour to decrease tire`s rolling resistance to verify effects of the process from results of processing time.