Comparative numerical and experimental analysis of thermal and hydraulic performance of improved plate fin heat sinks
The benefits of multiple perforations and slots in a plate-fin heat sink are investigated using a conjugate heat transfer model and complementary experimentation. Heat transfer and pressure drop are analyzed across the two, novel plate-fin heat sinks (with perforations and slots). The experimental d...
| Main Authors: | Tariq, A., Altaf, K., Ahmad, S.W., Hussain, G., Ratlamwala, T.A.H. |
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| Format: | Article |
| Institution: | Universiti Teknologi Petronas |
| Record Id / ISBN-0: | utp-eprints.23827 / |
| Published: |
Elsevier Ltd
2021
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| Online Access: |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85092536062&doi=10.1016%2fj.applthermaleng.2020.115949&partnerID=40&md5=7676c5c7bcc42b5cc42cd759bd8f6a9f http://eprints.utp.edu.my/23827/ |
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| Summary: |
The benefits of multiple perforations and slots in a plate-fin heat sink are investigated using a conjugate heat transfer model and complementary experimentation. Heat transfer and pressure drop are analyzed across the two, novel plate-fin heat sinks (with perforations and slots). The experimental data validates the conjugate heat transfer CFD model for the air-cooled heat sink. The results from the CFD model show that novel plate-fin heat sinks tend to have a higher heat transfer coefficient than the plane fins without slots and perforations. Also, pressure drop of the novel plate-fin heat sinks is lower than the plane plate-fin heat sink, so less fan power is required for novel heat sinks. For a range of Re number 13,049 to 52195, on average novel plate-fin heat sink-1 (NPFHS-1) and novel plate-fin heat sink-2 (NPFHS-2) have 42.8 and 35.9 higher Nu number than that of the plane plate-fin heat sink (PPFHS). An additional advantage of the reduction in mass of heat sink is achieved because of slots and perforations. © 2020 Elsevier Ltd |
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