Heat sinks with radial and constructal branching microchannel networks with loops are examined numerically. Radial and constructal networks are embedded in disk-shaped heat sinks. Constructal nets with loops are found to be more robust than the radial ones, when one or more channel segments are blocked. Since complex constructal networks would involve problems in manufacturing, constructal channel nets with loops may be a better choice in engineering applications. Networks with loops and without loops are compared. Results show that the constructal nets with loops provide a great advantage when the structure experiences accidental damage in one or more subchannel segments, since the loop assures the continuity of flow. In spite of blockage, the performance of the network has only a small drop considering the increased pressure drop.
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September 2006
Research Papers
Laminar Heat Transfer in Constructal Microchannel Networks With Loops
Xiang-Qi Wang,
Xiang-Qi Wang
Department of Mechanical Engineering,
National University of Singapore
, 10 Kent Ridge Crescent, Singapore, 119260
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Christopher Yap,
Christopher Yap
Department of Mechanical Engineering,
National University of Singapore
, 10 Kent Ridge Crescent, Singapore, 119260
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Arun S. Mujumdar
Arun S. Mujumdar
Department of Mechanical Engineering,
e-mail: mpeasm@nus.edu.sg
National University of Singapore
, 10 Kent Ridge Crescent, Singapore, 119260
Search for other works by this author on:
Xiang-Qi Wang
Department of Mechanical Engineering,
National University of Singapore
, 10 Kent Ridge Crescent, Singapore, 119260
Christopher Yap
Department of Mechanical Engineering,
National University of Singapore
, 10 Kent Ridge Crescent, Singapore, 119260
Arun S. Mujumdar
Department of Mechanical Engineering,
National University of Singapore
, 10 Kent Ridge Crescent, Singapore, 119260e-mail: mpeasm@nus.edu.sg
J. Electron. Packag. Sep 2006, 128(3): 273-280 (8 pages)
Published Online: September 20, 2005
Article history
Received:
June 24, 2005
Revised:
September 20, 2005
Citation
Wang, X., Yap, C., and Mujumdar, A. S. (September 20, 2005). "Laminar Heat Transfer in Constructal Microchannel Networks With Loops." ASME. J. Electron. Packag. September 2006; 128(3): 273–280. https://doi.org/10.1115/1.2229228
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