Distribution & Access For Publication Downloads News About Us Contact Us
Paper Titles
A Digital System Implement for Aircraft Sheet Metal Cutting
p.1637
Investigation of Process Capability of a Reaming Operation Using Statistical Tools
p.1643
Parametric Optimization in Electrochemical Machining of EN-31 Steel Based on Grey Relation Approach
p.1649
Effects of Coolants on Improving Machining Parameters while Mach-Inability Titanium Alloy (Ti-6Al-4V): A Review
p.1657
Optimum Length for Pin Fins Used in Electronic Cooling
p.1667
Capability of Advanced Abrasive Waterjet Machining and its Applications
p.1674
Performance Measurement and Data Analysis of Material Removal Rate for Wire Cut Electro Discharge Machining Process
p.1683
Multi Response Optimization of the Hole Punching Process Parameters in the Leaf Spring Assembly Using the Grey Taguchi Method and Simulated Annealing Algorithm
p.1691
Determination of Stress Distribution around Two Carbon Nonotubes Embedded in Infinite Metal Matrix Using Nonlocal Theory of Elasticity
p.1696

Optimum Length for Pin Fins Used in Electronic Cooling

Article Preview

Abstract:

The present work deals with the heat transfer analysis of pin fins of various geometries namely ─ circular, triangular and rectangular and thus arrive at the optimum design. To this end, the fin with convective boundary tip is considered and the equation governing the one-dimensional heat conduction in the fin is solved analytically to obtain the temperature distribution and heat transfer rate. A computer code has been developed to generate results for wide range of parameters─ heat transfer coefficient h, thermal conductivity k, and length of the fin l. Results are plotted in the form of temperature variation, heat transfer variation and optimum length variation. From the detailed discussion of the results it can be concluded optimum length decreases with increasing heat transfer coefficient and it increases with increasing thermal conductivity. It can be also concluded that the optimum length is minimum for a triangular fin compared to rectangular and circular fins.

You might also be interested in these eBooks
Mechanical and Aerospace Engineering, ICMAE2011 View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 110-116)

Pages:

1667-1673

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.110-116.1667

Citation:

Cite this paper

Online since:

October 2011

Authors:

M.P Mafeed, Ali M Salman, C Prabin, M.K. Ramis, M.A. Ali Baig, S.A. Khan

Keywords:

Fin, Heat Transfer Coefficient (HTC), Optimum Length Design

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] Aziz, Perturbation solution for convective fin with internal heat generation and temperature and temperature dependent thermal conductivity, Intenational Journal of Heat and Mass Transfer (1976) , Vol 20, pp.1253-1255.

DOI: 10.1016/0017-9310(77)90135-1

Google Scholar

[2] Bengt Sunden, Analysis of Conjugated laminar and turbulent forced convection-conduction heat transfer of plate fin, International Comm. Heat and Mass Transfer (1989), Vol. 16, p.821831.

DOI: 10.1016/0735-1933(89)90008-0

Google Scholar

[3] Ming-Jer Huang and Chao-Kuang Chen, Conjugate forced convection -conduction plate fin in power law fluids, International Comm. Heat and Mass Transfer (1987) , Vol. 14, pp.371-380.

DOI: 10.1016/0735-1933(87)90058-3

Google Scholar

[4] Andrea de LietoVollaro, Stefano Grignaffini, Franco Gugliermetti, Optimum design of vertical rectangular fin arrays, International Journal of Thermal Sciences (1999) pp.525-529.

DOI: 10.1016/s1290-0729(99)80025-8

Google Scholar

[5] Yunus A. Cengel. Heat and Mass transfer, A Tata McGraw-Hill Publications, Third Edition ( SI Units) Fourth Reprint, 2008. Figure 1. Temperature profile of circular fin for various values of h 73.

Google Scholar

[73] 2.

Google Scholar

[73] 4.

Google Scholar

[73] 6.

Google Scholar

[73] 8 74.

Google Scholar

[74] 2.

Google Scholar

[74] 4.

Google Scholar

[74] 6.

Google Scholar

[74] 8 75.

Google Scholar

[75] 2 0 0. 005 0. 01 0. 015 Temperature X h=10 h=15 h=20 h=25 k=150 W/mK l=0. 0116 m Tb=750 C T∞=600C Figure 2. Temperature profile of circular fin for various values of k Figure 3 Comparison of temperature profile of different cross-sectional fins. Figure 4 Comparison of Heat transfer profile of different cross-sectional fins. 73.

Google Scholar

[73] 2.

Google Scholar

[73] 4.

Google Scholar

[73] 6.

Google Scholar

[73] 8 74.

Google Scholar

[74] 2.

Google Scholar

[74] 4.

Google Scholar

[74] 6.

Google Scholar

[74] 8 75.

Google Scholar

[75] 2 0 0. 005 0. 01 0. 015 Temperature X k=120 k=150 k=180 k=210 73.

Google Scholar

[73] 5 74.

Google Scholar

[74] 5 75.

Google Scholar

[75] 5 0 0. 005 0. 01 0. 015 Temperature X in metre Circular Rectangular Triangular 0.

Google Scholar

02.

Google Scholar

04.

Google Scholar

06.

Google Scholar

08.

Google Scholar

1.

Google Scholar

12.

Google Scholar

14.

Google Scholar

16.

Google Scholar

18 0 0. 1 0. 2 0. 3 0. 4 Q L Circular Rectangular Triangular h=20 W/m2 K l=0. 0116 m Tb=750 C T∞=600C k=150 W/mK h=20 W/m 2 K l=0. 0116 m Tb=75 0 C T∞=600 C h=20 W/m2 K k=150W/mK Tb=750 C T∞=600C Figure 5 Optimum length vs Heat transfer coefficient h Figure 6 Optimum length vs Thermal conductivity k.

Google Scholar

1.

Google Scholar

12.

Google Scholar

14.

Google Scholar

16.

Google Scholar

18.

Google Scholar

2.

Google Scholar

22.

Google Scholar

24.

Google Scholar

26.

Google Scholar

28 5 10 15 20 25 30 Optimum length h Circle Rectangle Triangle.

Google Scholar

1.

Google Scholar

12.

Google Scholar

14.

Google Scholar

16.

Google Scholar

18.

Google Scholar

2.

Google Scholar

22.

Google Scholar

24.

Google Scholar

26 100 120 140 160 180 200 220 Optimum length k circle rectangle triangle k=150W/mK l=0. 0116 m Tb=750 C T∞=600 C h=20W/m2 K l=0. 0116 m Tb=750 C T∞=600C.

Google Scholar

Scientific.Net is a registered brand of Trans Tech Publications Ltd
© 2024 by Trans Tech Publications Ltd. All Rights Reserved