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Effect of pin fin configuration on thermal performance of plate pin fin heat sinks
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Document Title
Effect of pin fin configuration on thermal performance of plate pin fin heat sinks
Author
Nilpueng K.,Mesgarpour M.,Asirvatham L.G.,Dalkılıç A.S.,Ahn H.S.,Mahian O.,Wongwises S.
Name from Authors Collection
Affiliations
Department of Power Engineering Technology, King Mongkut's University of Technology North Bangkok, Bangsue, Bangkok, 10800, Thailand; Department of Mechanical Engineering, Faculty of Engineering King Mongkut's University of Technology Thonburi (KMUTT), Bangmod, Bangkok, 10140, Thailand; Department of Mechanical Engineering, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, India; Department of Mechanical Engineering, Yildiz Technical University, Yildiz, Besiktas, Istanbul, Turkey; Department of Mechanical Engineering, Incheon National University, Incheon, South Korea; School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, China; Department of Mechanical Engineering, Center for Nanotechnology in Renewable Energies, Ferdowsi University of Mashhad, Mashhad, Iran; National Science and Technology Development Agency (NSTDA)Pathum Thani 12120, Thailand
Type
Article
Source Title
Case Studies in Thermal Engineering
ISSN
2214157X
Year
2021
Volume
27
Open Access
All Open Access, Gold
Publisher
Elsevier Ltd
DOI
10.1016/j.csite.2021.101269
Abstract
Flow behavior and heat transfer characteristics of air flow inside the plate pin fin heat sinks (PPFHS) are presented. The effects of pin fin shape, pin fin orientation, and ratio of distance between pin and plate fin center to pin fin size (S/Dp or S/Wp) on the flow pattern, heat transfer coefficient (HTC), pressure drop (ΔP) and thermal performance are investigated. Three types of pin fin shape, including a circular pin, square pin, and 45° square pin with pin fin sizes of 2.5, 3.0, and 3.5 mm, are used. The flow visualization used smoke to study the air flow behavior inside the PPFHS. The test runs were done at a heat flux of 14.81 kW/m2 and Reynolds number (Re) ranging between 1700 and 5200. Under the same pin fin frontal area, the HTC and ΔP of air inside the plate square pin fin heat sink (PSPFHS) was higher than that from the plate circular pin fin heat sink (PCPFHS) by an average of 12.52 and 15.05%, respectively. The decrease of the S/Dp or S/Wp from 2.25 to 1.61 caused the augmentation of the HTC and ΔP of air flow inside the PPFHS by about 11.77%–17.17% and 46.61%–50.52%, respectively. The average thermal performance factors (TPF) were 1.32, 1.44, and 1.42 for PCPFHS, PSPFHS, and the plate 45° square pin fin heat sink (P45oSPFHS), respectively. The correlations for Nusselt number (Nu) and friction factor (f) were also proposed. © 2021
Industrial Classification
Knowledge Taxonomy Level 1
Knowledge Taxonomy Level 2
Knowledge Taxonomy Level 3
License
CC BY-NC-ND
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Publication Source
Scopus
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