Design and optimization of pin fin heat sinks for low velocity applications

Shaukatullah, H.; Storr, W.R.; Hansen, B.J.; Gaynes, Michael

doi:10.1109/stherm.1996.545105

Cited by 25 publications

(6 citation statements)

References 6 publications

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“…The cylindrical-shaped pins have the better heat transfer coefficient value than other pins shapes because there is a weak recirculation flow among them and give a share to contribute a fresh air in heat transfer. Pin-fin technology is classified as the most interesting methods for enhancing the exchange of heat [15] Heat sink with pin fin is extensively utilized because of it's not sensitive to the direction of air flow [16]. The pin fins arrangement are considered to be with uniform spacing (Z/D = X/D = 2.5) which has been tested by ref [17] to be one of the best fins arrangements.…”

Section: Mathematical Model Of Heat Sinksmentioning

confidence: 99%

Effect of Evaporative Cooling Combined with Heat Sink on PV Module Performance

Hasan¹,

ImanSalehkareem²,

Attar³

2019

JUBES

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A pin fins array as a heat sink along with a moist wood wool pad to serve as novel cooling system to cool PV panel has been used. The present cooling system was based on the evaporative cooling concept and extended area of heat transfer. The results gave enhancements in output power and panel’s efficiency about 32.7% and 31.5% respectively. This improvement in the module performance was attributed to the reduction in the operation temperature of the solar cell. The reduction in module temperature was about 26.05%.

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Section: Mathematical Model Of Heat Sinksmentioning

confidence: 99%

Effect of Evaporative Cooling Combined with Heat Sink on PV Module Performance

Hasan¹,

ImanSalehkareem²,

Attar³

2019

JUBES

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“…Shaukatullah et al [3] studied the optimal design of pin fin at low flow rates; the results showed that, with 6 × 6 cylindrical aluminum fins on a 25 mm × 25 mm base plate, a better cooling effect can be achieved by using 15 mm high pins with 1.5 × 1.5 mm cross section at 1 m/s flow rate of air.…”

Section: Introductionmentioning

confidence: 99%

A Novel Heat Sink Design and Prototyping for LED Desk Lamps

Chu

Chang

Huang

2015

Mathematical Problems in Engineering

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Light-emitting diode (LED) is a modern lighting device. If the heat dissipating mechanism of LED desk lamp is not well designed, the induced high temperature will cause the reduction of illumination and life time of lamp. Therefore, the heat sink design becomes a key technology for LED lighting device. This study developed a methodology to design and analyze a heat sink for LED cooling. Four different types of heat sinks with fins in longitudinal or transverse directions and with or without vents on the base plate were compared. By using the CFD software FLUENT, heat flux and temperature around the heat sink were analyzed, and the surface temperature distribution was also investigated. The simulation outcomes were compared with experiments results to verify analysis accuracy. The comparisons show only slight differences, and the deviations were less than 4.0%. For cooling LED desk lamp, the design of using 12 vents on both sides of heat sink through natural convection to create the chimney effect was adopted; consequently, the temperature dropped 5°C in average. This design can also reduce the material of heat sink, LED lamp weight, and production cost.

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“…There are lots of works related with various kinds of heat sink. In 1996, Shaukatullah et al [5] reported an optimized design of pin fin heat sink for use in low velocity applications where there is plenty of open space around for the air to bypass the heat sink. While, in 2002, Kim et al [6] investigated the thermal performance of several heat sinks such as extruded, aluminum foam, and layered one.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Heat Release Performance of Swaged- and Extruded-type Heat Sink Used in Industrial Inverter

Kim¹,

Ku²,

Lee

2013

Journal of the Korea Academia-Industrial cooperation Society

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In this experiment, we investigated the performance of two types of heat sink, swaged-and extruded-type, used in the inverter of industrial electricity generator. The swaged-type heat sink has 62 fins, and the extruded-type has 38 fins having the same dimension as that of the swaged-type. But the extruded-type heat sink maintains the same heat transfer area by the laterally waved surface which has 1 mm in radius. As a result, the swaged-and extruded-type heat sinks released 70.7% and 63.8% of the heat incoming to the heat sink, respectively. The other incoming heat were naturally convected and radiated to the ambient. In spite of 40% decrease in number of fins, the heat release performance of the extruded-type heat sink was lowered only 6.9% than that of the swaged-type. We believe that, this shows the increment of effective heat transfer area by the laterally waved surface of fins and the better heat transfer property of the extruded-type heat sink. Key Words :

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Design and optimization of pin fin heat sinks for low velocity applications

Cited by 25 publications

References 6 publications

Effect of Evaporative Cooling Combined with Heat Sink on PV Module Performance

Effect of Evaporative Cooling Combined with Heat Sink on PV Module Performance

A Novel Heat Sink Design and Prototyping for LED Desk Lamps

Evaluation of Heat Release Performance of Swaged- and Extruded-type Heat Sink Used in Industrial Inverter

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