Thermal Performance Prediction of a Finned Plain-Plate Heat-Pipe for LED Lamp

Article Preview

Abstract:

In order to keep the temperature of Light emitting diode (LED) lamp below some limitation, a finned plain-plate heat-pipe was presented and numerically investigated to predict heat transfer performance under natural convection. Two kinds of fin configurations were studied. It is found that 30° is the worst orientation for the fin configuration with the tops of every other two channels covered, while the worst orientation is around 60° for the fin configuration with channel tops opened. The thermal conductivity of fin material only has mild effect on the cooling capacity with 7 % difference when its thermal conductivity varies from 50 to 200 W/(m·k). The latter configuration has better thermal performance than the former at the same orientation, especially at relatively low inclined angle.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

2135-2138

Citation:

Online since:

May 2011

Authors:

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] A. Zukauskas, M.S. Shur and R. Gaska: Introduction to Solid-State Lighting. (John Wiley & Sons, USA 2002).

Google Scholar

[2] N. Narendran and Y.M. Gu: J. Disp. Tech. Vol. 1-1(2005), pp.167-171.

Google Scholar

[3] W.Q. Tao: Numerical Heat Transfer (2nd Ed. )(Xi'an: Xi'an Jiaotong University Press, China 2001).

Google Scholar