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메탄올 Fuel Cell 내의 유로 형상에 대한 열유동해석
백수홍,이동렬 한국기계기술학회 2015 한국기계기술학회지 Vol.17 No.6
This research is to investigate the performance analysis of methanol fuel cell for flow channel with four different types of the channel (Serpentine I, II, Inter-digitated, Parallel) in the fuel cell stack. Velocity, pressure, temperature and density distributions of fluid over the flow domain of the flow channel are numerically calculated for the optimum design of flow channel with uniform inlet velocity. According to better water discharge and mutual gas reaction with low pressure drop and high density difference between inlet and outlet in the flow channel, Serpentine I type is of highest performance of the flow channel shapes in the present methanol fuel cell models.
메탄올 Fuel Cell 내의 유로 형상에 대한 열유동해석
백수홍,이동렬 한국기계기술학회 2015 한국기계기술학회지 Vol.17 No.6
This research is to investigate the performance analysis of methanol fuel cell for flow channel with four different types of the channel (Serpentine I, II, Inter-digitated, Parallel) in the fuel cell stack. Velocity, pressure, temperature and density distributions of fluid over the flow domain of the flow channel are numerically calculated for the optimum design of flow channel with uniform inlet velocity. According to better water discharge and mutual gas reaction with low pressure drop and high density difference between inlet and outlet in the flow channel, Serpentine I type is of highest performance of the flow channel shapes in the present methanol fuel cell models.
백수홍(Soo Hong Baek),신동호(Dong Ho Shin),강승환(Seung Hwan Kang),고한서(Han Seo Ko) 대한기계학회 2014 대한기계학회 춘추학술대회 Vol.2014 No.11
A heat sink is the most common cooling device for an electronic apparatus. However, a cross flow fan has been used additionally since it is limited for the heat sink using a natural convection to cool down highly integrated electronic devices like a Central Processing Unit (CPU). The fan has some demerits such as a big volume and a loud noise. Thus, the heat sink with high efficiency using a counter flow by an ion wind was developed in this study after parametric studies were performed by a Computational Fluid Dynamics (CFD) analysis. The optimal design was carried out according to a fin shape and array by comparison study for a fin height and size. Finally, the heat sink with high efficiency for cooling the electronic device was fabricated using the ion wind system.