Thermal characteristics of tree-shaped microchannel nets with/without loops

Several tree-shaped microchannel networks with/without loops are numerically examined and compared for application in cooling of electronic components. The physical model of microchannel electronic cooling system is set up with tree-shaped networks. The tree-shaped microchannel nets are embedded in...

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Bibliographic Details
Published in:International journal of thermal sciences 2009-11, Vol.48 (11), p.2139-2147
Main Authors: Xu, Peng, Wang, X.Q., Mujumdar, A.S., Yap, C., Yu, B.M.
Format: Article
Language:English
Subjects:
Applied sciences
Blockage
Design. Technologies. Operation analysis. Testing
Electronic component cooling
Electronics
Exact sciences and technology
Integrated circuits
Loop
Pressure drop
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Tree-shaped net
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Summary:Several tree-shaped microchannel networks with/without loops are numerically examined and compared for application in cooling of electronic components. The physical model of microchannel electronic cooling system is set up with tree-shaped networks. The tree-shaped microchannel nets are embedded in a disk-shaped heat sink, which is attached to a chip to remove the heat dissipated by a chip. The effects of total branching level and loops on the thermal and flow performances of heat sink system are investigated numerically. Results show that tree-shaped nets with loops provide a great advantage when the structure experiences accidental damage to one or more channel segments since the loop assures continuity of coolant flow. Under blockage of some branches, the channel networks only experience an increase of pressure drop while maintaining the capability to remove the heat generated by the chip.
ISSN:1290-0729
1778-4166
DOI:10.1016/j.ijthermalsci.2009.03.018