A review on the thermal performance of natural convection in vertical annulus and its applications

2021 ◽  
Vol 150 ◽  
pp. 111463
Author(s):  
Shahid Husain ◽  
Md Adil ◽  
Mohammad Arqam ◽  
Bahman Shabani
Keyword(s):  
Natural Convection ◽  
Thermal Performance ◽  
Vertical Annulus

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.

Combined natural convection and radiation in a vertical annulus

1996 ◽  
Vol 31 (6) ◽  
pp. 371-379
Author(s):  
Ling-Chia Weng ◽  
Hsin-Sen Chu
Keyword(s):  
Natural Convection ◽  
Vertical Annulus

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

scholarly journals Dustproof cooling of the electrical box

2018 ◽  
Vol 180 ◽  
pp. 02072
Author(s):  
Patrik Nemec ◽  
Katarína Kaduchová ◽  
Milan Malcho
Keyword(s):  
Heat Transfer ◽  
Natural Convection ◽  
Phase Change ◽  
Thermal Performance ◽  
Working Fluid ◽  
Cooling Method ◽  
Box Space

In present are electrical boxes cooled by air through the intake hole on the bottom electrical box to the box space with electrotechnical elements and exhaust through the hole at the top to the surrounding by natural convection. This cooling method is effective but operate with the risk of contamination electrotechnical elements by dust sucking from surrounding air. The goal of this work is solution of the dustproof cooling of the electrical box by natural convection. The work deal with design of the device with the heat transfer by the phase change of the working fluid and experimental measuring its thermal performance at the cooling electrotechnical elements loaded by heat 1 200 W in the dustproof electrical box.

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