Investigations on a Variable-Channel-Width Double-Layered Minichannel Heat Sink
| Autor: | Nirav Patel, Hemantkumar B. Mehta |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Pressure drop
Physics 020209 energy Thermal resistance Geometry 02 engineering and technology Heat sink Dissipation 021001 nanoscience & nanotechnology Lambda Industrial and Manufacturing Engineering Electronic Optical and Magnetic Materials Fin (extended surface) Thermal 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering 0210 nano-technology Dimensionless quantity |
| Zdroj: | IEEE Transactions on Components, Packaging and Manufacturing Technology. 9:2036-2045 |
| ISSN: | 2156-3985 2156-3950 |
| DOI: | 10.1109/tcpmt.2019.2919592 |
| Popis: | Incessant development of electronic components necessitates the exploration of efficient cooling devices to meet the demand of high heat dissipation with less pressure drop penalty. In view of that, a novel liquid-cooled variable-channel-width double-layered minichannel heat sink (VW $_{C}$ DL-MCHS) is proposed in this paper. A detailed numerical investigation on VW $_{C}$ DL-MCHS is carried out using 3-D solid–fluid conjugated heat transfer model for the counter and parallel flow configurations. The influence of the dimensionless stepped fin length ( $\lambda$ ) on the thermal performance of a VW $_{C}$ DL-MCHS is investigated by considering the same values of $\lambda $ (0.25, 0.50, 0.75, 0.8, 0.85, 0.9, 0.95) in both layers. After obtaining the optimal value of $\lambda $ , the investigations are carried forward to study the influence of different values of $\lambda $ in each layer of VW $_{C}$ DL-MCHS by considering 0%, 25%, and 50% overlapping of the dense fin region of the upper layer over the dense fin region of the lower layer. The results show that a counter-flow VW $_{C}$ DL-MCHS with zero overlap (0%) turns out to be the best geometry with the overall improvement in thermal performance of 8.68 times than the conventional single-layered-MCHS and 3.7318 times higher than the conventional DL-MCHS. |
| Databáze: | OpenAIRE |
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