Numerical Investigation of Heat Transfer Characteristics on Differential Square Fin Heat Sinks
Abdüssamed Kabakuş
Ahmet Numan Özakın
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Keywords

Impingement jet
Differantial fin
CFD
Heat sink
Heat transfer

How to Cite

Kabakuş, A., & Özakın, A. (2022). Numerical Investigation of Heat Transfer Characteristics on Differential Square Fin Heat Sinks. International Journal of Innovative Research and Reviews, 6(1), 76-81. Retrieved from http://www.injirr.com/article/view/106

Abstract

In this study, the temperature distribution on the square fin heat sink with differential fin distribution was numerically investigated. Numerical analysis was performed with ANSYS-Fluent package program and k-ℇ turbulence model. The heat transfer performance realized on fixed nozzle-heat sink distance (35 mm) and three different Reynolds numbers (4000-8000-12000) on heat sinks with fins and plane surfaces were examined. Air at 20°C was used as the fluid and 1000 W/m2 heat flux applied to the heat sink. In the study, temperature contours showing the temperature distribution on the heat sink and streamline images in which the turbulence formation caused by the fins on the heat sink surface were observed. As a result, it was determined that the differential square fins cause a more homogeneous temperature distribution on the heat sink compared to the plane plate. The heat transfer coefficient from the heat sink surface was determined as h=159,3 W/m2K at the highest Reynolds number. The Nusselt number does not increase much with the increase of the Reynolds number in the differential fins.

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References

[1] Yakut R, Yakut K, Sabolsky E, Kuhlman J. Experimental determination of cooling and spray characteristics of the water electrospray. International Communications in Heat and Mass Transfer (2021) 120:105046.
[2] Markal B, Aydın O. Experimental investigation of coaxial impinging air jets. Applied Thermal Engineering (2018) 141:1120–1130.
[3] Nawani S, Subnash M. A review on multiple liquid jet impingement onto flat plate. Materials today: Proceedings (2021) 46:11190–11197.
[4] Khalaji M, Afshari F, Kotçioğlu İ. Experimental and Numerical Investigation of Heat Transfer in Different Winglet- Surface in a Vertical Rectangular Duct. International Journal of Innovative Research and Reviews (2018) 2(1):16–24.
[5] Zhong Z, Meng L, Li X, G. Z, Xu Y, Deng J. Enhanced heat transfer performance of optimized micro-channel heat sink via forced convection in cooling metal foam attached on copper plate. Journal of Energy (2020) Storage,(30:101501.
[6] Ma H, Chen B, Gao J, Lin C. Development of an OAPCP-micropump liquid cooling system in a laptop. International Communications in Heat and Mass Transfer (2009) 36:225–232.
[7] Su C, Wang S, Liu X, Tao Q, Wang Y. Experimental and numerical investigation on spray cooling ofradiator in fuel cell vehicle. Energy Reports (2022) 8:1283–1294.
[8] Kabakuş A, Yakut K, Özakın AN, Yakut R. Experimental determination of cooling performance on heat sinks with cone-jet electrospray mode. Engineering Science and Technology, an International Journal (2021) 24:665–670.
[9] Mohammadpour J, Lee A. Investigation of nanoparticle effects on jet impingement heat transfer: A review. Journal of Molecular Liquids (2020) 316:113819.
[10] Ravanji A, Zargarabadi MR. Effects of pin-fin shape on cooling performance of a circular jet impinging on a flat surface. International Journal of Thermal Sciences (2021) 161:106684.
[11] Froissart M, Ziółkowski P, Dudda W, Badur J. Heat exchange enhancement of jet impingement cooling with the novel humped-cone heat sink. Case Studies in Thermal Engineering (2021) 28:101445.
[12] Ahmed A, Wright E, Abdel-Aziz F, Yan Y. Numerical investigation of heat transfer and flow characteristics of a double-wall cooling structure: Reverse circular jet impingement. Applied Thermal Engineering (2021) 189.
[13] Zuckerman N, Lior N. Jet Impingement Heat Transfer: Physics, Correlations, and Numerical Modeling. Advances in Heat Transfer (2006) 39:565–631.
[14] Chauan R, Thakur NS. Heat transfer and friction characteristics of impinging jet solar air heater. Journal of Renewable and Sustainable Energy (2012) 4:43121.
[15] Yakut R, Yakut K, Yeşildal F, Karabey A. Experimental and numerical investigations of impingement air jet for a heat sink. Procedia Engineering (2016) 157:3–12.
[16] Lee J, Ren Z, Haegele J, Potts G, Jin J, Ligrani P, et al. Effects of Jet-To-Target Plate Distance and Reynolds Number on Jet Array Impingement Heat Transfer. Journal of Turbomachinery (2014) 136(5). doi:Target.
[17] Çalışkan S, Başkaya Ş, Çalışır T. Experimental and numerical investigation of geometry effects on multiple impinging air jets. International Journal of Heat and Mass Transfer (2014) 75:685–703.
[18] San J, Chen J. Effects of jet-to-jet spacing and jet height on heat transfer characteristics of an impinging jet array. International Journal of Heat and Mass Transfer (2014) 71:8–17.
[19] İşman MK. Experimental and theoretical investigation of convective heat and mass transfer in single and multiple impinging air jets. PhD Thesis. Uludağ University. Bursa, Turkey (2011).
[20] El-Said E, Abdelaziz G, Sharshir S, Elsheikh A, Elsaid A. Experimental investigation of the twist angle effects on thermo-hydraulic performance of a square and hexagonal pin fin array in forced convection. International Communications in Heat and Mass (2021) Transfer,(126:105374.
[21] Yang Y, Peng H. Numerical study of pin-fin heat sink with un-uniform fin height design. International Journal of Heat and Mass Transfer (2008) 51:4788–4796.
[22] Froissart M, Ziółkowski P, Badur J. A study of jet impingement cooling enhancement by concave and convex heat sink shape modifications. V International Scientific and Technical Conference Modern Power Systems and Units (2021) 323:10.
[23] Özdilli Ö, Şevik S. Numerical analysis of the cooling performance of heat sinks with different geometries. In: MAS 13th International European Conference On Mathematics Engineering Natural and Medical Sciences. Afghanistan (2020).
[24] Çalışkan S, Zırzakıran M. An Investigation of the Effect of Vortex Generators on Heat Transfer in Channel Flow. International Journal of Innovative Research and Reviews (2018) 2(2):1–9.
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