Thermal performance of a radial heat sink with longitudinal wavy fins for electronic cooling applications under natural convection

2022 ◽  
Author(s):  
Subhasisa Rath ◽  
Siddhartha ◽  
Sukanta Kumar Dash
Keyword(s):  
Natural Convection ◽  
Thermal Performance ◽  
Heat Sink ◽  
Electronic Cooling ◽  
Radial Heat

An Investigation of the Effect of interrupted fin arrangements on the Thermal Performance of a Heat Sink under a Free Convection Condition

2019 ◽  
Vol 7 (1) ◽  
pp. 43-53
Author(s):  
Abbas Jassem Jubear ◽  
Ali Hameed Abd
Keyword(s):  
Heat Transfer ◽  
Steady State ◽  
Natural Convection ◽  
Thermal Performance ◽  
Heat Sink ◽  
Numerical Study ◽  
Ansys Fluent ◽  
Fluent Software ◽  
Steady State Heat ◽  
Steady State Heat Transfer

The heat sink with vertically rectangular interrupted fins was investigated numerically in a natural convection field, with steady-state heat transfer. A numerical study has been conducted using ANSYS Fluent software (R16.1) in order to develop a 3-D numerical model.  The dimensions of the fins are (305 mm length, 100 mm width, 17 mm height, and 9.5 mm space between fins. The number of fins used on the surface is eight. In this study, the heat input was used as follows: 20, 40, 60, 80, 100, and 120 watts. This study focused on interrupted rectangular fins with a different arrangement and angle of the fins. Results show that the addition of interruption in fins in various arrangements will improve the thermal performance of the heat sink, and through the results, a better interruption rate as an equation can be obtained.

Investigating the effect of various fin geometries on the thermal performance of a heat sink under natural convection

Heat Transfer ◽  
2020 ◽  
Vol 49 (8) ◽  
pp. 5038-5049
Author(s):  
Vinous M. Hameed ◽  
Maha A. Hussein ◽  
Hussein T. Dhaiban
Keyword(s):  
Natural Convection ◽  
Thermal Performance ◽  
Heat Sink

Optimum design of a radial heat sink under natural convection

2011 ◽  
Vol 54 (11-12) ◽  
pp. 2499-2505 ◽  
Author(s):  
Seung-Hwan Yu ◽  
Kwan-Soo Lee ◽  
Se-Jin Yook
Keyword(s):  
Natural Convection ◽  
Optimum Design ◽  
Heat Sink ◽  
Radial Heat

Natural convection around a radial heat sink

2010 ◽  
Vol 53 (13-14) ◽  
pp. 2935-2938 ◽  
Author(s):  
Seung-Hwan Yu ◽  
Kwan-Soo Lee ◽  
Se-Jin Yook
Keyword(s):  
Natural Convection ◽  
Heat Sink ◽  
Radial Heat

Enhanced Heat Transfer in Radial Heat Sinks for LED Lamps

2018 ◽  
Author(s):  
Fernando Cano-Banda ◽  
Ana Gallardo-Gutierrez ◽  
Jesus Garcia-Gonzalez ◽  
Abel Hernandez-Guerrero ◽  
Luis Luviano-Ortiz
Keyword(s):  
Heat Transfer ◽  
Natural Convection ◽  
Heat Sink ◽  
Heat Dissipation ◽  
Heat Sinks ◽  
Output Analysis ◽  
Maximum Heat ◽  
Maximum Heat Transfer ◽  
Longitudinal Orientation ◽  
Radial Heat

A radial design of a passive heat sink for cooling LED illumination devices is analyzed numerically in order to identify the geometric shape that promotes better heat dissipation rates. Natural convection with the surrounding is considered during the operation of the heat sink. Due to the fact that natural convection is the main mechanism of heat transfer, the shape of the heat sink has a high influence in the heat dissipated. An analysis of the influence of different parameters of a heat sink is conducted in the presented study. The radial heat sink under analysis consists in a flat disc with rectangular fins on it, and the fins are distributed with a radial longitudinal orientation in a circular row arrangement. The number of rows can vary but there is a constant relation of two times the number of fins between the number of fins in an inner row and the next outer row. In order to find a correct configuration to improve the dissipation of heat, parameters like the number of fins, the length of the fins and the separation between fins are studied. The average Nusselt number and thermal resistance for each geometric configuration are compared. The output analysis provides the best shape for a maximum heat transfer.

Sign in / Sign up

Export Citation Format

Share Document