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

Natural convective performance of perforated heat sinks with circular pin fins

“…2, increasing the φ is advantageous to both Type A-and Type B-heat sinks since it promotes the penetration depth of the ventilation. A similar behavior of the profile was also observed by Huang et al [27] for the upward and sideways arrangements. Upon closer examination of Fig.…”

“…In total, 59 types of circular pin-fin dissipaters were used. An experimental study was conducted on the natural convection heat transfer from a square pin fin and plate fin heat sinks subject to the influence of orientation by Huang et al [14]. Enchao and Yogendra [15] investigated the enhancement of heat transfer from an enclosed discrete heat source using pin fin heat sinks, taking into account the three modes of heat transfer.…”

Cooling Of Electronic Equipments with Heat Sink: A Review of Literature

“…This argument is supported by showing that the augmentation factor, defined as the heat transfer of a heat sink relative to that of a flat plate, is around 1.1-2.5 for the upward arrangement, around 0.8-1.8 for the sideward arrangement, and around 1.2-3.2 for the downward arrangement. [13] Abdullatif Ben-Nakhi and Ali J. Chamkha focused on the numerical study of steady, laminar, conjugate natural convection in a square enclosure with an inclined thin fin of arbitrary length. The inclined fin is attached to the left vertical thin side of the enclosure while the other three sides are considered to have finite and equal thicknesses of arbitrary thermal conductivities.…”

Correlation of cross-cut cylindrical heat sink to improve the orientation effect of LED light bulbs

“…With regard to the natural convection effects in terms of the orientation of heat sinks, Huang et al [7] experimentally studied the effects of orientation on a square pin-fin heat sink, compared seven types of heat sinks, and proposed optimal designs for each orientation. Shen et al [8] studied the effects of rectangular plate-fin heat sink orientation in LED lighting applications.…”