철도차량용 고휘도 LED 전조등 방열판에 대한 열해석
Thermal Analysis for High-Brightness LED Headlamp Heaksink of Railway Vehicle
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초록
Has the advantage of being environmentally friendly and high energy efficiency and long life than the other illumination light source is a LED. However, this can increase the output temperature of the heat sink has a fundamental problem that this vulnerability LED life to rise sharply. The academic and research at home and abroad such as natural convection, forced convection, heat pipe cooling technology for this solution. In this study, we review the analytical conditions and methods for the simulation performed on the heat-sink design to increase efficiency in the room of the railway vehicle Brightness LED headlight technology development direction of sink development. Thermal analysis result, so forced convection when the heat dissipation effect is increased as the flow rate of the air is increased((As the driving speed increases the vehicle)) and heat-sink effect is expected to increase, as the heat fin length increase was confirmed also that increase with radiation effect albeit linear.
Abstract
Has the advantage of being environmentally friendly and high energy efficiency and long life than the other illumination light source is a LED. However, this can increase the output temperature of the heat sink has a fundamental problem that this vulnerability LED life to rise sharply. The academic and research at home and abroad such as natural convection, forced convection, heat pipe cooling technology for this solution. In this study, we review the analytical conditions and methods for the simulation performed on the heat-sink design to increase efficiency in the room of the railway vehicle Brightness LED headlight technology development direction of sink development. Thermal analysis result, so forced convection when the heat dissipation effect is increased as the flow rate of the air is increased((As the driving speed increases the vehicle)) and heat-sink effect is expected to increase, as the heat fin length increase was confirmed also that increase with radiation effect albeit linear.
참고문헌 (7)
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- "ANSYS R15 document", ~ (2014)
- M.H. Shin, "THermal Analysis and Evaluation of LED Bulb Considering Thermal Stability", Proceedings of annual meeting of KSPE, pp.561~562 (2008)