International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

Impact Factor (2025): 6.9

DOI Prefix: 10.47001/IRJIET

Computational Study of the Effect of Fin Longitudinal Spacing and Reynolds Number on the Performance of Oblique Heat Sinks

Muhamad SafiDepartment of Mechanical Engineering, Faculty of Engineering, Diponegoro University, Jalan Prof. Soedarto, Tembalang, Semarang 50275, Central Java, IndonesiaNazaruddin SinagaDepartment of Mechanical Engineering, Faculty of Engineering, Diponegoro University, Jalan Prof. Soedarto, Tembalang, Semarang 50275, Central Java, IndonesiaSyaifulDepartment of Mechanical Engineering, Faculty of Engineering, Diponegoro University, Jalan Prof. Soedarto, Tembalang, Semarang 50275, Central Java, IndonesiaSukimanSTIMA IMMI, Jalan Raya Tanjung Barat, Jakarta Selatan, Indonesia

Vol 6 No 9 (2022): Volume 6, Issue 9, September 2022 | Pages: 27-38

International Research Journal of Innovations in Engineering and Technology

OPEN ACCESS | Research Article | Published Date: 12-09-2022

doi Logo doi.org/10.47001/IRJIET/2022.609004

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Abstract

Various heat sinks have been widely researched to get a better performance design. This research aims to study the effect of fin longitudinal spacing and Reynolds number on heat sink performance at an oblique angle of 45 degrees. This study utilizes a finite-volume computational approach to determine the performance and details of the flow on the heat sinks. The calculations are conducted on fin spacing between 0.3 mm and 1.5 mm in the Reynolds number of 6,470 to 19,410. It was found that the fin longitudinal spacing significantly affects the performance of heat sinks for various Reynolds numbers, where the larger the spacing, the higher the Nusselt number. Based on this study, it can be concluded that it is necessary to determine the optimal fin longitudinal spacing in the design of the oblique heat sink.

Keywords

Heat sink, oblique, convection


Citation of this Article

Muhamad Safi'i, Nazaruddin Sinaga, Syaiful, Sukiman, “Computational Study of the Effect of Fin Longitudinal Spacing and Reynolds Number on the Performance of Oblique Heat Sinks” Published in International Research Journal of Innovations in Engineering and Technology - IRJIET, Volume 6, Issue 9, pp 27-38, September 2022. Article DOI https://doi.org/10.47001/IRJIET/2022.609004

Licence Copyright (c) 2026 International Research Journal of Innovations in Engineering and Technology creative common licence This work is licensed under Creative common Attribution Non Commercial 4.0 Internation Licence
References
  1. F. Han, H. Guo, and X. Ding. “Design and optimization of a liquid-cooled heat sink for a motor inverter in electric vehicles. " Apps. Energy, vol. 291, pp. 1-14, January 2021. doi: 10.1016/j.apenergy.2021.116819.
  2. AMA Mageeth, SJ Park, M. Jeong, W. Kim, and C. Yu. “Planar-type thermally chargeable supercapacitor without an effective heat sink and performance variations with layer thickness and operation conditions,” Appl. Energy, vol. 268, pp. 1-9, October 2019. doi: 10.1016/j.apenergy.2020.114975.
  3. D. Kong, Y. Kim, M. Kang, E. Song, Y. Hong, HS Kim, KJ Rah, HG Choi, D. Agonafer, H. Lee. “A holistic approach to the thermal-hydraulic design of 3D manifold microchannel heat sinks for energy-efficient cooling,” Case Stud. therm. eng. , vol. 28, pp. 1-13, September 2021. doi:10.1016/j.csite.2021.101583.
  4. M. Ghaneifar, H. Arasteh, R. M ashayekhi, A. Rahbari, RB Mahani, and P. Talebizadehsardari. “Thermohydraulic analysis of hybrid nanofluid in a multilayered copper foam heat sink employing local thermal non-equilibrium condition: Optimization of layers thickness,” Appl. therm. eng. , vol. 181, pp. 1-13, June 2020. doi: 10.1016/j.applthermaleng.2020.115961.
  5. MR Attar, M. Mohammadi, A. Taheri, S. Hosseinpour, MP Fard, MH Sabzevar, A. Davoodi. “Heat transfer enhancement of conventional aluminium heat sinks with an innovative, cost-effective, and simple chemical roughening method,” Therm. science. eng. prog. , vol. 20, pp. 1-10, September 2020. doi:10.1016/j.tsep.2020.100742.
  6. A.Moradikazerouni, M. Afrand, J. Alsarraf, S. Wongwi ses, A. Asadi, and TK Nguyen. “Investigation of a computer CPU heat sink under laminar forced convection using a structural stability method,” Int. J. Heat Mass Transfer. , vol. 134, pp. 1218–1226, December 2019. doi: 10.1016/j.ijheatmasstransfer.2019.02.029.
  7. M. Pan, Z. Chen, and C. Li. “Experiment and simulation analysis of oriented cut copper fibre heat sink for LED water cooling,” Case Stud. therm. eng. , vol. 24, pp. 1-17, February 2021. doi: 10.1016/j.csite.2021.100878.
  8. H. Zu, W. Dai, Y. Li, K. Li, and J. Li “Analysis of enhanced heat transfer on a passive heat sink with high-emissivity coating,” Int. J. Therm. Science. , vol. 166, pp. 1-10, March 2021. doi: 10.1016/j.ijthermalsci.2021.106971.
  9. A.Abbas and CC Wang, “Augmentation of natural convection heat sink via displacement design,” Int. J. Heat Mass Transfer. , vol. 154, pp. 1-14, April 2020. doi: 10.1016/j.ijheatmasstransfer.2020.119757.
  10. H. Hassan and NYA Shafey. “3D study of convection-radiation heat transfer of electronic chip inside enclosure cooled by a heat sink,” Int. J. Therm. Science. , vol. 159, pp. 1-15, September 2021. doi:10.1016/j.ijthermalsci.2020.106585.
  11. Y. Yoon, DR Kim, and KS Lee, “Cooling performance and space efficiency improvement based on heat sink arrangement for power conversion electronics,” Appl. therm. eng. , vol. 164, pp. 1-10. September 2019. doi:10.1016/j.applthermaleng.2019.114458.
  12. TW Ting, YM Hung, and N. Guo, “Effects of streamwise conduction on the thermal performance of nanofluid flow in a microchannel heat sink,” Energy Convers. Manag. , vol. 78, pp. 14–23, November 2014. doi:10.1016/j.enconman.2013.10.061.
  13. Y.alihosseini, MZ Targhi, and MM Heyhat, “Thermo-hydraulic performance of wavy microchannel heat sink with oblique grooved finned,” Appl. therm. eng. , vol. 189, pp. 1-11, August 2020. doi: 10.1016/j.applthermaleng.2021.116719.
  14. JG Song, JH Lee, and IS Park, “Enhancement of the cooling performance of naval combat management system using heat pipe,” Appl. therm. eng. vol. 188, pp. 1-12, February 2021. doi: 10.1016/j.applthermaleng.2021.116657.
  15. D. Jung, H. Lee, D. Kong, E. Cho, KW Jung, CR Kharangate, M. Iyengar, C. Malone, M. Asheghi, KE Goodson, H. Lee, “Thermal design and management of micro-pin fin heat sinks for energy-efficient three-dimensional stacked integrated circuits,” Int. J. Heat Mass Transfer. , vol. 175, pp. 1-17, May 2021. doi: 10.1016/j.ijheatmasstransfer.2021.121192.
  16. A.Rajalingam and S. Chakraborty, “Effect of shape and arrangement of micro-structures in a microchannel heat sink on the thermo-hydraulic performance,” Appl. therm. eng. , vol. 190, pp. 1-16, February 2021. doi: 10.1016/j.applthermaleng.2021.116755.
  17. H. Sait, “Cooling a plate lithium-ion battery using a thermoelectric system and evaluating the geometrical impact on the performance of heatsink connected to the system,” J. Energy Storage, vol. 52, pp. 1-14, 2022. doi:10.1016/j.est.2022.104692.
  18. Z. Soleymani, M. Rahimi, M. Gorzin, and Y. Pahamli, “Performance analysis of hotspot using geometrical and operational parameters of a microchannel pin-fin hybrid heat sink,” Int. J. Heat Mass Transfer. , vol. 159, pp. 1-18, June 2020. doi: 10.1016/j.ijheatmasstransfer.2020.120141.
  19. H. Nemati, M. Moradaghay, MA Moghimi, and JP Meyer, “Natural convection heat transfer over horizontal annular elliptical finned tubes,” Int. Comm. Heat Mass Transfer. , vol. 118, pp. 1-10, September 2020. doi:10.1016/j.icheatmasstransfer.2020.104823.
  20. K. Zhang, MJ Li, FL Wang, and YL He, “Experimental and numerical investigation of natural convection heat transfer of W-type fin arrays,” Int. J. Heat Mass Transfer. , vol. 152, pp. 1-13, January 2020. doi: 10.1016/j.ijheatmasstransfer.2020.119315.
  21. S. Meganathan, R. Arunkumar, and A. Ponshanmugakumar, “Numerical analysis of passive heat sink for different shapes,” Mater. Today Proc. , vol. 46, no. 1, pp. 3749–3755, 2020. doi:10.1016/j.matpr.2021.02.014.
  22. B. Kanargi, JMS Tan, PS Lee, and C. Yap, “A tapered inlet/outlet flow manifold for planar, air-cooled oblique-finned heat sinks,” Appl. therm. eng. , vol. 174, pp. 1-18, January 2020. doi: 10.1016/j.applthermaleng.2020.115250.
  23. El Ghandouri, A. El Maakoul, S. Saadeddine, and M. Meziane, “Design and numerical investigations of natural convection heat transfer of a new rippling fin shape,” Appl. therm. eng. , vol. 178, pp. 1-14, June 2020. doi: 10.1016/j.applthermaleng.2020.115670.
  24. AL Teh, YW Phoo, WM Chin, EH Ooi, and JJ Foo, “Forced convective heat transfer enhancement of 90° bend plate-fin heat sink with grid generated turbulence,” Chem. eng. res. Dec., vol. 156, pp. 226–239, 2020. doi:10.1016/j.cherd.2019.12.004.
  25. Q. Zhu, K. Chang, J. Chen, X. Zhang, H. Xia, H. Zhang, H. Wang, H. Li, Y. Jin, “Characteristics of heat transfer and fluid flow in microchannel heat sinks with rectangular grooves and different shaped ribs,” Alexandria Eng. J., vol. 59, no. 6, pp. 4593–4609, 2020. doi:10.1016/j.aej.2020.08.014.
  26. A.Abbas, F. Qasrawi, and CC Wang, “Investigation of performance augmentation for natural convective heatsink with the help of chimney,” Appl. therm. eng. , vol. 178, pp. 1-14, June 2020. doi:10.1016/j.applthermaleng.2020.115586.
  27. P. Gil, “Experimental investigation on heat transfer enhancement of air-cooled heat sink using multiple synthetic jets,” Int. J. Therm. Science. , vol. 166, pp. 1-10, February 2021. doi: 10.1016/j.ijthermalsci.2021.106949.
  28. J. Pandey, A. Husain, MZ Ansari, and N. Al-Azri, “Performance analysis of cold plate heat sink with parallel channel and pin-fin,” Mater. Today Proc. , vol. 44, pp. 3144–3149, March 2021. doi: 10.1016/j.matpr.2021.02.819.
  29. N. Patel and HB Mehta, “Experimental investigations on a variable channel width double layered mini channel heat sink,” Int. J. Heat Mass Transfer. , vol. 165, pp. 1-21, November 2021. doi: 10.1016/j.ijheatmasstransfer.2020.120633.
  30. Y. Ma, A. Shahsavar, and P. Talebizadehsardari, “Two-phase mixture simulation of the effect of fin arrangement on first and second law performance of a bifurcation microchannels heatsink operated with biologically prepared water-Ag nanofluid,” Int. Comm. Heat Mass Transfer. , vol. 114, pp. 1-18, March 2020. doi: 10.1016/j.icheatmasstransfer.2020.104554.
  31. DK Kim, “Thermal optimization of plate-fin heat sinks with fins of variable thickness under natural convection,” Int. J. Heat Mass Transfer. , vol. 55, no. 4, pp. 752–761, November 2012. doi: 10.1016/j.ijheatmasstransfer.2011.10.034.
  32. RC Adhikari, DH Wood, and M. Pahlevani, “An experimental and numerical study of forced convection heat transfer from rectangular fins at low Reynolds numbers,” Int. J. Heat Mass Transfer. , vol. 163, pp. 1-12, August 2020. doi: 10.1016/j.ijheatmasstransfer.2020.120418.
  33. A.Torbatinezhad, AA Ranjbar, M. Rahimi, and M. Gorzin, “A new hybrid heatsink design for enhancement of PV cells performance,” Energy Reports, vol. 8, pp. 6764–6778, May 2022. doi: 10.1016/j.egyr.2022.05.050.
  34. AK Rao and V. Somkuwar, “Heat transfer of a tapered fin heat sink under natural convection,” Mater. Today Proc. , vol. 46, pp. 7886–7891. March 2021. doi: 10.1016/j.matpr.2021.02.565.
  35. M. Shoaib, SY Khan, N. Ahmed, M. Mahmood, A. Waqas, MA Qaisrani, N. Shehzad, “Thermal management of solar photovoltaic module by using drilled cylindrical rods integrated with phase change materials,” J. Energy Storage, vol. 52, pp. 1-15. May 2022, doi: 10.1016/j.est.2022.104956.
  36. Z. Zhong, L. Meng, X. Li, G. Zhang, Y. Xu, and J. Deng, “Enhanced heat transfer performance of optimized micro-channel heat sink via forced convection in cooling metal foam attached on copper plate,” J. Energy Storage, vol. 30, pp. 1-10 February 2020. doi: 10.1016/j.est.2020.101501.
  37. Y. Lin, Y. Luo, W. Li, Y. Cao, Z. Tao, and TIP Shih, “Single-phase and Two-phase Flow and Heat Transfer in Microchannel Heat Sink with Various Manifold Arrangements,” Int. J. Heat Mass Transfer. , vol. 171, pp. 1-11 May 2021. doi: 10.1016/j.ijheatmasstransfer.2021.121118.
  38. S. Yan, F. Wang, J. Hong, and O. Sigmund, “Topology optimization of microchannel heat sinks using a two-layer model,” Int. J. Heat Mass Transfer. , vol. 143, pp. 1-16, August 2019. doi: 10.1016/j.ijheatmasstransfer.2019.118462.
  39. VS Bhandari and SH Kulkarni, “Optimization of heat sink for thyristor using particle swarm optimization,” Results Eng. , vol. 4, pp. 1-4 June 2019. doi: 10.1016/j.rineng.2019.100034.
  40. S. Rostami, AA Nadooshan, A. Raisi, and M. Bayareh, “Effect of using a heatsink with the nanofluid flow and phase change material on thermal management of plate lithium-ion battery,” J. Energy Storage, vol . 52, pp. 1-31, August 2022. doi: 10.1016/j.est.2022.104686.
  41. CH Huang and WY Chen, “A natural convection horizontal straight-fin heat sink design problem to enhance heat dissipation performance,” Int. J. Therm. Science. , vol. 176, pp 1-13 January 2022. doi: 10.1016/j.ijthermalsci.2022.107540.
  42. M. Law, OB Kanargi, and PS Lee, “Effects of varying oblique angles on flow boiling heat transfer and pressure characteristics in oblique-finned microchannels,” Int. J. Heat Mass Transfer. , vol. 100, pp. 646–660, May 2016. doi: 10.1016/j.ijheatmasstransfer.2016.04.077.
  43. CT Shaw et al., “CT Shaw, Using Computational Fluid Dynamics, Prentice Hall. " Techniques, 1992.
  44. TR Taha, " An Introduction to Parallel Computational Fluid Dynamics", vol. 6, no. 4. 2005. doi:10.109/mcc.1998.736434.
  45. HJ Ferziger and M. Peric, "Computational Methods for Fluid Dynamics". third, rev. editions. vol. 7, no. 1. 2015. ISBN 3-540-42074-6, Springer-Verlag Berlin Heidelberg New York.

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