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직접 수소화붕소나트륨/과산화수소 연료전지의 산화극 연료 조성에 관한 연구
이태훈(TAE HOON LEE),유수상(SU SANG YU),오택현(TAEK HYUN OH) 한국수소및신에너지학회 2021 한국수소 및 신에너지학회논문집 Vol.32 No.6
This study investigated the effect of anode fuel composition on the performance of direct borohydride/hydrogen peroxide fuel cells (DBHPFCs). The effect of sodium borohydride (NaBH₄) and sodium hydroxide (NaOH) concentrations on fuel cell performance was determined through fuel cell tests. Fuel cell performance increased with an increase in the NaBH4 concentration, whereas it decreased with an increase in the NaOH concentration. The anode fuel composition was selected as 10 wt% NaBH₄+10 wt% NaOH+80 wt% H₂O based on the fuel viscosity, electrochemical reaction rate, and decomposition reaction rate. DBHPFCs were also tested to analyze the effect of operating temperature and operation time on fuel cell performance. The present results can be used as a reference basis to determine operating conditions of DBHPFCs.
미래 국방 무인 이동체를 위한 NaBH₄ 수소 발생 시스템 기반 연료전지 시스템 설계 및 검증
윤성모(SEONG MO YUN),김민재(MIN JAE KIM),황채민(CHAE MIN HWANG),이태훈(TAE HOON LEE),유수상(SU SANG YU),오택현(TAEK HYUN OH) 한국수소및신에너지학회 2024 한국수소 및 신에너지학회논문집 Vol.35 No.2
In this study, a fuel cell system for future defense unmanned vehicles was designed and validated. A Co/Al₂O₃-Ni foam catalyst for NaBH₄ hydrolysis was characterized using several analytical methods. A NaBH₄ hydrogen generation system with the Co/Al₂O₃-Ni foam catalyst continuously generated hydrogen at elevated reaction temperatures. The fuel cell system with the NaBH₄ hydrogen generation system was designed and tested. The performance of the fuel cell system was comparable to that of the fuel cell system using pure hydrogen. Therefore, the fuel cell system with the NaBH₄ hydrogen generation system is a suitable power source for future defense unmanned vehicles owing to its easy refueling and simple system.
한붕기,유수상 慶北專門大學(영주경상전문대학) 2001 慶北專門大學 論文集 Vol.19 No.-
The design activity is a process for creative problem solution through three steps: the first step that understands the problem by grasping the situation as a creative process that the activity itself makes new works making something out of nothing, the second step that conceives various solutions for solving it and the third step that analyzes an alternative plan and chooses a best proposal. The originality needs in all the steps of these design processes and it is essential to create good design, also it is a basic element. Furthermore, as the humans demand becomes complex, variety and a high degree, the role of originality with close relations with design revolution becomes important more in the modem situation that expects the new meanings and values of the products. As this originality becomes drop by posterior habitat factor, it does not demonstrate its role sufficiently, But this latent originality can be developed of the function through train and education. Accordingly, this study is to grope for education method for originality development that can be adopted to meet the needs of the times.