NDLI: A Comparison of the Relative Effectiveness of Fin Aspect Ratio Under Natural Convective Heat Transfer With Top Mounted Fins

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Anthony, S. Pruszenski
Copyright Year	2009
Abstract	Mechanical engineers often design fins on metal enclosures to dissipate an internal heat load using natural convection. This paper gives the results of a series of CFD (Computational Fluid Dynamics) studies, and, supporting calculations for the maximum temperature rise on a plate with a constant heat load of 100 watts applied to the bottom of the plate. Vertical fins are formed on the top surface of the plate. In this study, the horizontal dimensions and thickness of a square plate are held constant, while, the aspect ratio of the top surface fins are varied between studies. The aspect ratio is defined as the ratio of the height of the fin to the width of the base of the fin. The study compares aspect ratios from 1:1 to 40:1 with a constant base width. In addition, comparisons between 20:1 aspect ratio fins with the same height but with different fin counts due to changes in fin separation distances are compared. Closely spaced fins are not always the best solution for natural convection.
Starting Page	1399
Ending Page	1405
Page Count	7
File Format	PDF
ISBN	9780791843826
DOI	10.1115/IMECE2009-12364
e-ISBN	9780791838631
Volume Number	Volume 9: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B and C
Conference Proceedings	ASME 2009 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2009-11-13
Publisher Place	Lake Buena Vista, Florida, USA
Access Restriction	Subscribed
Subject Keyword	Temperature Computational fluid dynamics Metals Fins Dimensions Natural convection Separation (technology) Convection Stress Design Electrical measurement Heat Mechanical engineers
Content Type	Text
Resource Type	Article

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