Free convective/radiative heat transfer from pin fin arrays with a vertical base plate. General representation of heat transfer performance.

Orientation effect on natural convective performance of square pin fin heat sinks

“…8b. A similar flow pattern was also observed by Aihara et al [3]. For the problem of interest, a threshold may exist beyond which the sideward arrangement is surpassed by the upward arrangement.…”

“…In addition, their investigation showed little influence of inclination when the inclination angle was less than 30°from the vertical. Aihara et al [3] tested a total of 59 arrays with a population density of 1.08-0017-9310/$ -see front matter Ó 2007 Elsevier Ltd. All rights reserved. doi:10.1016/j.ijheatmasstransfer.2007.08.…”

Comparison of thermal performance between plate-fin and pin-fin heat sinks in natural convection

“…Pin-fin heat sinks have omnidirectional performance because of their geometric characteristics, so they are widely used in applications for which heat sinks are used in various orientations. There have been many studies on these two types of heat sink [1][2][3][4][5][6][7][8][9] because of their advantages over the other types of heat sink. However, it is not yet known which type of heat sink between the two has better thermal performance in the natural convection mode.…”

Natural convective performance of perforated heat sinks with circular pin fins

“…Elshafei [12] worked with the natural convection heat transfer from circular pin fin heat sinks subject to the influence of their geometry, heat flux and orientation. Aihara et al [13] conducted a detailed experimental investigation of natural convection and radiation heat transfer from pin-fin arrays with a vertical base plate. In total, 59 types of circular pin-fin dissipaters were used.…”