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Research Papers

Heat Transfer Enhancement for Blocks in a Channel Using a Rotationally Oscillating Plate

[+] Author and Article Information
Esam M. Alawadhi

Department of Mechanical Engineering,
Kuwait University,
P.O. Box 5969,
Safat 13060, Kuwait

Contributed by the Electronic and Photonic Packaging Division of ASME for publication in the JOURNAL OF ELECTRONIC PACKAGING. Manuscript received June 6, 2013; final manuscript received March 1, 2014; published online May 5, 2014. Assoc. Editor: Siddharth Bhopte.

J. Electron. Packag 136(3), 031003 (May 05, 2014) (6 pages) Paper No: EP-13-1046; doi: 10.1115/1.4027090 History: Received June 06, 2013; Revised March 01, 2014

Heat transfer enhancement using a rotationally oscillating plate in a channel containing heated blocks is numerically studied. The blocks simulate electronic chips with a high thermal dissipation rate. The model consists of a channel formed by two plates with heated blocks attached to bottom walls and a plate installed at the centerline of the channel. The rotationally oscillating plate enhances heat transfer from the blocks through the flow accelerating above the blocks. The effect of the frequency and maximum angle of attack of the plate on the Nusselt number is investigated for different Reynolds numbers. Heat transfer enhancement of the blocks with the plate is evaluated by comparing their thermal characteristics to a channel without plate. The results show that the oscillating plate enhances overall heat flow out of the blocks by 21.72% but with significant pressure drop of 300%.

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References

Parry, J., Rantala, J., and Lasance, C., 2002, “Enhanced Electronic System Reliability-Challenges for Temperature Prediction,” IEEE Trans. Compon. Packag. Technol.25(4), pp. 533–538. [CrossRef]
Young, T., and Vafai, K., 1998, “Convection Flow and Heat Transfer in a Channel Containing Multiple Heated Obstacles,” Int. J. Heat Mass Transfer, 41(21), pp. 3279–3298. [CrossRef]
Davalath, J., and Bayazitoglu, Y., 1987, “Forced Convection Cooling Across Rectangular Blocks,” ASME J. Heat Transfer, 109(2), pp. 321–328. [CrossRef]
Leung, C., Chen, S., and Chan, T., 2000, “Numerical Simulation of Laminar Forced Convection in an Air-Cooled Horizontal Printed Circuit Board Assembly,” Numer. Heat Transfer, Part A, 37(4), pp 373–393. [CrossRef]
Wu, H., and Perng, S., 1999, “Effect of an Oblique Plate on the Heat Transfer Enhancement of Mixed Convection Over Heated in a Horizontal Channel,” Int. J. Heat Mass Transfer, 42(7), pp. 1217–1235. [CrossRef]
Korichi, A., Oufer, L., and Polidori, G., 2009, “Heat Transfer Enhancement in Self-Sustained Oscillatory Flow in a Grooved Channel With Oblique Plates,” Int. J. Heat Mass Transfer52(5–6), pp. 1138–1148. [CrossRef]
Tsay, Y., Cheng, J., and Chang, T., 2003, “Enhancement of Heat Transfer From Surface-Mounted Block Heat Sources in a Duct with Baffles,” Numer. Heat Transfer, Part A, 43(8), pp. 827–884. [CrossRef]
Oztop, H., Varol, Y., and Alnak, D., 2009, “Control of Heat Transfer and Fluid Flow Using a Triangular Bar in Heated Blocks Located in a Channel,” Int. Comm. Heat Mass Transfer, 36(8), pp. 878–885. [CrossRef]
Luviano-Ortiz, L., Hernandez-Guerrero, H., Rubio-Arana, C., and Romero-Mendez, R., 2008, “Heat Transfer Enhancement in a Horizontal Channel by the Addition of Curved Deflectors,” Int. J. Heat Mass Transfer, 51(15–16), pp. 3972–3984. [CrossRef]
McGarry, M., Campo, A., and Hitt, D., 2004, “Numerical Simulations of Heat and Fluid Flow in Grooved Channel With Curved Vanes,” Numer. Heat Transfer, Part A, 46(1), pp. 41–54. [CrossRef]
Alawadhi, E., 2005, “Forced Convection Cooling Enhancement for Rectangular Blocks Using a Wavy Plate,” IEEE Trans. Compon. Packag. Technol., 28(3), pp. 525–533. [CrossRef]
Yang, S., 2002, “A Numerical Investigation of Heat Transfer Enhancement for Electronic Devices Using an Oscillating Vortex Generator,” Numer. Heat Transfer, Part A, 42(3), pp. 269–284. [CrossRef]
Huhes, T., Liu, W., and Zimmermann, T., 1981, “Lagrangian–Eulerian Finite Element Formulation for Incompressible Viscous Flow,” Comput. Methods Appl. Mech. Eng., 29(3), pp. 329–349. [CrossRef]
Pin, F., Idelsohn, S., Onate, E., and Aubry, R., 2007, “The ALE/Lagrangian Finite Element Method: A New Approach to Computation of Free-Surface Flows and Fluid-Object Interactions,” Comput. Fluid, 36(1), pp. 27–38. [CrossRef]

Figures

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Fig. 1

Schematic diagram of the problem

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Fig. 2

Finite element mesh of the computational domain

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Fig. 3

The local Nusselt number of the present and Young and Vafai [2] results for first second block for Re = 800

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Fig. 4

Instantaneous average Nusselt number for the (a) first, (b) second, and (c) third block, for Re = 500, Lp*= 1.5, F = 1/2500, and different maximum plate angle

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Fig. 5

Nusselt number enhancement for the (a) first, (b) second, and (c) third block, for Re = 500, Lp*= 1.5, F = 1/2500, and different maximum plate angle

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Fig. 6

Nusselt number enhancement for all blocks and pressure drop across the channel, Lp*= 1.5, F = 1/2500, and different maximum plate angle

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