Thermal Science 2022 Volume 26, Issue 2 Part B, Pages: 1487-1501
https://doi.org/10.2298/TSCI210402307H
Full text ( 1567 KB)
Cited by
Thermal analysis of proposed heat sink design under natural convection for the thermal management of electronics
Habib Numan (Mechanical, Biomedical, and Design Engineering Department, School of Engineering and Technology, Aston University, Birmingham, UK)
Siddiqi Muftooh ur Rehman (Mechanical, Biomedical, and Design Engineering Department, School of Engineering and Technology, Aston University, Birmingham, UK), muftooh@cecos.edu.pk
Tahir Muhammad (Department of Mechanical Engineering, Bahauddin Zakriya University, Multan, Pakistan)
The rapid development in the field of electronics has led to high power densities and miniaturization of electronic packages. Because of the compact size of electronic devices, the rate of heat dissipation has increased drastically. Due to this reason, the air-cooling system with a conventional heat sink is insufficient to remove large quantity of heat. A novel macro-channel ‘L-shaped heat sink’ is pro-posed and analyzed to overcome this problem. The thermal resistance and fluid-flow behavior under natural convection, of the novel and conventional air-cooled heat sink designs, are analyzed. Governing equations are discretized and solved across the computational domain of the heat sink, with 3-D conjugate heat transfer model. Numerical results are validated through experimentation. The effect of parameters i.e., fin height, number of fins and heat sink size, on the thermal resistance and fluid-flow are reported. Examination of these parameters provide a better physical understanding from energy conservation and management view point. Substantial increase in the thermal performance is noted for the novel ‘L-shaped heat sink’ compared to the conventional design.
Keywords: Heat Sink, L-shape heat sink, novel design, thermal management, thermal analysis, heat transfer
Show references
Jones, C. D., Smith, L. F., Optimum Arrangement of Rectangular Fins on Horizontal Surfaces for Free- Convection Heat Transfer, Journal of Heat Transfer, 92 (1970), 1, pp. 6-10
Bar-Cohen, A., Fin Thickness for an Optimized Natural Convection Array of Rectangular Fins, Journal of Heat Transfer, 101 (1979), 3, pp. 564-566
Teertstra, P., et al., Analytical Forced Convection Modeling of Plate Fin Heat Sinks, Journal of Electronics Manufacturing, 10 (2000) 4, pp. 253-261
Baskaya, S., et al., Parametric Study of Natural Convection Heat Transfer from Horizontal Rectangular Fin Arrays, International Journal of Thermal Sciences, 39 (2000), 8, pp. 797-805
de Lieto Vollaro, A., et al., Optimum Design of Vertical Rectangular Fin Arrays, International journal of Thermal Sciences, 38 (1999), 6, pp. 525-529
Mehrtash, M., Tari, I., A Correlation for Natural Convection Heat Transfer from Inclined Plate-Finned Heat Sinks, Applied Thermal Engineering, 51 (2013), 1-2, pp. 1067-1075
Tari, I., Mehrtash, M., Natural Convection Heat Transfer from Horizontal and Slightly Inclined Plate-Fin Heat Sinks, Applied Thermal Engineering, 61 (2013), 2, pp. 728-736
Tari, I., Mehrtash, M., Natural Convection Heat Transfer from Inclined Plate-Fin Heat Sinks, Interna-tional Journal of Heat and Mass Transfer, 56 (2013), 1-2, pp. 574-593
Shen, Q., et al., Orientation Effects on Natural Convection Heat Dissipation of Rectangular Fin Heat Sinks Mounted on LEDs, International Journal of Heat and Mass Transfer, 75 (2014), Aug., pp. 462- 469
Naik, S., et al., Natural-Convection Characteristics of a Horizontally-Based Vertical Rectangular Fin-Array in the Presence of a Shroud, Applied Energy, 28 (1987), 4, pp. 295-319
Ledezma, G., Bejan, A., Heat Sinks with Sloped Plate Fins in Natural and Forced Convection, International Journal of Heat and Mass Transfer, 39 (1996), 9, pp. 1773-1783
Elshafei, E., Natural Convection Heat Transfer from a Heat Sink with Hollow/Perforated Circular Pin Fins, Proceedings, 3rd International Conference on Thermal Issues in Emerging Technologies Theory and Applications, Cairo, Egypt, 2010, IEEE, pp. 185-193
Kim, D. K., Thermal Optimization of Plate-Fin Heat Sinks with Fins of Variable Thickness Under Natural Convection, International journal of Heat and Mass Transfer, 55 (2012), 4, pp. 752-761
Costa, V. A., Lopes, A. M., Improved Radial Heat Sink for Led Lamp Cooling, Applied Thermal Engineering 70 (2014), 1, pp. 131-138
Jang, D., et al., The Orientation Effect for Cylindrical Heat Sinks with Application to LED Light Bulbs, International Journal of Heat and Mass Transfer, 71 (2014), Apr., pp. 496-502
Jang, D., et al., Optimum Design of a Radial Heat Sink with a Fin-Height Profile for High-Power LED Lighting Applications, Applied Energy 116 (2014), Mar., pp. 260-268
Li, B., et al., Enhanced Natural Convection Heat Transfer of a Chimney-Based Radial Heat Sink, Energy Conversion and Management, 108 (2016), Jan., pp.422-428
Park, S. J., et al., Optimization of a Chimney Design for Cooling Efficiency of a Radial Heat Sink in a LED Downlight, Energy Conversion and Management, 114 (2016), Apr., pp. 180-187
Bhattacharya, A., Mahajan, R. L., Metal Foam and Finned Metal Foam Heat Sinks for Electronics Cooling in Buoyancy-Induced Convection, Journal of Electronic Packaging, 128 (2006), 3, pp. 259-26
Feng, S. S., et al., An Experimental and Numerical Study of Finned Metal Foam Heat Sinks Under Impinging Air Jet Cooling, International Journal of Heat and Mass Transfer, 77 (2014), Oct., pp. 1063- 1074
Feng, S., et al., Natural Convection in Metal Foam Heat Sinks with Open Slots, Experimental Thermal and Fluid Science, 91 (2018), Feb., pp. 354-362
Filomeno, G., et al., Automatization of Pin Fin Heat Sink Design with Geometric and Fluid Constraints, International Journal of Mechanical Engineering and Robotics Research, 9 (2020), 5, pp. 652-657
Taheri, A., et al., A New Design of Liquid-Cooled Heat Sink by Altering the Heat Sink Heat Pipe Application: Experimental Approach and Prediction Via Artificial Neural Network, Energy Conversion and Management, 206 (2020), Feb., 112485
Ghadikolaei, S., et al., Fe3O4-(CH2OH) 2 Nanofluid Analysis in a Porous Medium Under MHD Radiative Boundary Layer and Dusty Fluid, Journal of Molecular Liquids, 258 (2018), May, pp. 172-185
Amiri, A., et al., Laminar Convective Heat Transfer of Hexylamine-Treated MWCNTs-Based Turbine Oil Nanofluid, Energy Conversion and Management, 105 (2015), Nov., pp. 355-367
AL-Musawi, A. I. A., et al., Numerical Study of the Effects of Nanofluids and Phase-Change Materials in Photovoltaic Thermal (PVT) Systems, Journal of Thermal Analysis and Calorimetry, 137 (2019), 2, pp. 623-636
Mousavi, H., et al., A Novel Heat Sink Design with Interrupted, Staggered and Capped Fins, International Journal of Thermal Sciences, 127 (2018), May, pp. 312-320
Haghighi, S. S., et al., Natural Convection Heat Transfer Enhancement in New Designs of Plate-Fin Based Heat Sinks, International Journal of Heat Mass Transfer, 125 (2018), Oct., pp. 640-647
Yalcin, H. G., et al., Numerical Analysis of Natural Convection Heat Transfer from Rectangular Shrouded Fin Arrays on a Horizontal Surface, International Communications in Heat Mass Transfer, 35 (2008), 3, pp. 299-311
Rao, V. R., Venkateshan, S. P., Experimental Study of Free Convection and Radiation in Horizontal Fin Arrays, International Journal of Heat and Mass Transfer, 39 (1996), 4, pp. 779-789
Holman, J. P., Experimental Methods for Engineers, Mc Graw and Hill, New York, USA, 2001
Goshayeshi, H. R., et al., Effect of Magnetic Field on the Heat Transfer Rate of Kerosene/Fe2O3 Nanofluid in a Copper Oscillating Heat Pipe, Experimental Thermal and Fluid Science, 68 (2015), Nov., pp. 663-668
Mostafavi, G., M. et al., Effect of Fin Interruptions on Natural Convection Heat Transfer From a Rectangular Interrupted Single-Wall, Proceedings, International Electronic Packaging Technical Conference and Exhibition, Mani, Hi., USA, 2013