Abstract
In this paper, a novel high-performance heat sink based on screen-fin technology is described. The structural features of the heat sink are presented. The apparatus to measure both the pressure drop and heat transfer performance are described. Correlation equations of friction factor and Colburn-j factor as a function of screen-fin orientation, coolant properties and flow rate through the mesh are formulated. A semi-empirical model is used to predict the heat exchanger pressure drop, thermal performance and to design prototype heat sinks. Prototypes are built and tested. By screen-fin technology, the best performance of this kind of heat sink with external dimensions: 76.2-mm-wide, 63.5-mm-deep with 38.1-mm-high screen-laminate fins is 4.3W//spl deg/C at 62.3-Pa pressure drop of air flow through the heat sink.
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