Volume 19, Issue 11 (November 2019)                   Modares Mechanical Engineering 2019, 19(11): 2793-2801 | Back to browse issues page

XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Nabavi M, Kheradmand S. 3D Numerical Simulation of Laser Diode Heat Sink to Estimate the Effect of Geometry Variation. Modares Mechanical Engineering 2019; 19 (11) :2793-2801
URL: http://mme.modares.ac.ir/article-15-20571-en.html
1- Aerodynamic, Propulsion & Energy Conversion Department, Mechanical Engineering Faculty, Malek-Ashtar University of Technology, Shahinshahr
2- Aerodynamic, Propulsion & Energy Conversion Department, Mechanical Engineering Faculty, Malek-Ashtar University of Technology, Shahinshahr , kheradmand@mut-es.ac.ir
Abstract:   (4087 Views)
In this research, the heat sink performance of a laser diode with the different geometries was studied. A 3D simulation of flow and heat transfer has been used considering the natural convection. First, in order to test the validity, the simulation results were compared with the experimental results, which were in a good agreement. Then according to the chimney flow pattern, eight geometries were designed with two different heights of the fin and each one of them was evaluated by three heat fluxes of 200, 400 and 600 W/ . The aim of this research is to find the condition that minimizes the average temperature of the heat sink. The results showed that the average heat transfer coefficient in the heat sink is increased up to 40 percent by creating the slice in the fine. In the fins with the height of 21.3 millimeters, the fin with two similar symmetric slices and in the fins with the height of 32.6 millimeters and constant volume that the slices of fine are added to its teeth, for heat fluxes less than 400 W/ , symmetric fin with two similar slices in the middle section and a volume equal to the volume of the primary fin, had the best performance. For heat fluxes, more than 400 W/ , the average temperature of the symmetric fin with one slice in the middle and a volume equal to the volume of the primary fin was minimized. Fin average heat transfer coefficient, average Nusselt number, fin thermal resistance, fin average temperatures, flow streamline and isothermal contour plots in the fin plate were evaluated for each state. 
Full-Text [PDF 943 kb]   (1652 Downloads)    
Article Type: Original Research | Subject: Computational Fluid Dynamic (CFD)
Received: 2018/05/7 | Accepted: 2019/05/26 | Published: 2019/11/21

References
1. Incropera FP, Dewitt DP. Fundamentals of heat and mass transfer. 3rd Edition. New York: John Wiley & Sons: 1990. p. 28. [Link]
2. Welling JR, Wooldridge CB. Free convection heat transfer coefficients from rectangular vertical fins. Journal of Heat Transfer. 1965;87(4):439-444. [Link] [DOI:10.1115/1.3689135]
3. Incropera FP. Convection heat transfer in electronic equipment cooling. Journal of Heat Transfer. 1988;110(4b):1097-1111. [Link] [DOI:10.1115/1.3250613]
4. Vafai K, Khaled ARA. Analysis of flexible microchannel heat sink systems. International Journal of Heat and Mass Transfer. 2005;48(9):1739-1746. [Link] [DOI:10.1016/j.ijheatmasstransfer.2004.11.020]
5. Hung TC, Yan WM, Wang XD, Huang YX. Optimal design of geometric parameters of double-layered microchannel heat sinks. International Journal of Heat and Mass Transfer. 2012;55(11-12):3262-3272. [Link] [DOI:10.1016/j.ijheatmasstransfer.2012.02.059]
6. Bhavnani SH, Bergles AE. Effect of surface geometry and orientation on laminar natural convection heat transfer from a vertical flat plate with transverse roughness elements. International Journal of Heat and Mass Transfer. 1990;33(5):965-981. [Link] [DOI:10.1016/0017-9310(90)90078-9]
7. Polidori G, Padet J. Transient free convection flow on a vertical surface with an array of large-scale roughness elements. Experimental Thermal and Fluid Science. 2003;27(3):251-260. [Link] [DOI:10.1016/S0894-1777(02)00296-0]
8. Sparrow EM, Vemuri SB. Natural convection/radiation heat transfer from highly populated pin fin arrays. Journal of Heat Transfer. 1985;107(1):190-197. [Link] [DOI:10.1115/1.3247377]
9. Harahap F, McManus HN. Natural convection heat transfer from horizontal rectangular fin arrays. Journal of Heat Transfer. 1967;89(1):32-38. [Link] [DOI:10.1115/1.3614318]
10. Awad MM. Assessment of convergent-divergent fins performance in natural convection. Journal of American Science. 2013;9(2):116-124. [Link]
11. Baskaya S, Sivrioglu M, Ozek M. Parametric study of natural convection heat transfer from horizontal rectangular fin arrays. International Journal of Thermal Science. 2000;39(8):797-805. [Link] [DOI:10.1016/S1290-0729(00)00271-4]
12. Bello-Ochende T, Liebenberg L, Meyer JP. Constructal cooling channels for micro-channel heat sinks. Internaional Journal of Heat and Mass Transfer. 2007;50(21-22):4141-4150. [Link] [DOI:10.1016/j.ijheatmasstransfer.2007.02.019]
13. Lineykin S, Ben-Yaakov S. User-friendly and intuitive graphical approach to the design of thermoelectric cooling systems. International Journal of Refrigeration. 2007;30(5):798-804. [Link] [DOI:10.1016/j.ijrefrig.2006.12.004]
14. Arularasan R, Velraj R. Modeling and simulation of a parallel plate heat sink using computational fluid dynamics. International Journal of Advanced Manufacturing Technology. 2010;51(1-4):415-419. [Link] [DOI:10.1007/s00170-008-1867-9]
15. Naphon P, Klangchart S, Wongwises S. Numerical investigation on the heat transfer and flow in the mini-fin heat sink for CPU. International Communications in Heat and Mass Transfer. 2009;36(8):834-840. [Link] [DOI:10.1016/j.icheatmasstransfer.2009.06.010]
16. Choi J, Jeong M, Yoo J, Seo M. A new CPU cooler design based on an active cooling heatsink combined with heat pipes. Applied Thermal Engineering. 2012;44:50-56. [Link] [DOI:10.1016/j.applthermaleng.2012.03.027]
17. Mahmoud S, Al-Dadah R, Aspinwall DK, Soo SL, Hemida H. Effect of micro fin geometry on natural convection heat transfer of horizontal microstructures. Applied Thermal Engineering. 2011;31(5):627-633. [Link] [DOI:10.1016/j.applthermaleng.2010.09.017]
18. Sane SS, Sane NK, Parishwad GV. Computational analysis of horizontal rectangular notched fin arrays dissipating heat by natural convection. In: Stoffels GGM, editor. Proceeding of the 5th European Thermal-Sciences Conference; 2008 May 18-22; Eindhoven, the Netherlands. Eindhoven: Eindhofen University of Technology; 2008. p. 8. [Link]
19. Yu SH, Lee KS, Yook SJ. Natural convection around a radial heat sink. International Journal of Heat and Mass Transfer. 2010;53(13-14):2935-2938. [Link] [DOI:10.1016/j.ijheatmasstransfer.2010.02.032]
20. Yu SH, Lee KS, Yook SJ. Optimum design of a radial heat sink under natural convection. International Journal of Heat and Mass Transfer. 2011;54(11-12):2499-24505. [Link] [DOI:10.1016/j.ijheatmasstransfer.2011.02.012]

Add your comments about this article : Your username or Email:
CAPTCHA

Send email to the article author


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.