Abstract
The power of one rack in a data center can be greater than 3 kW, which is released within a relatively small area. However, most of the heat in a data center is released from the electronic chips. Thus, the energy consumption of the air-conditioning system in a data center will be significantly decreased if the heat released by the electronic chips can be reduced directly. Although liquid cooling heat sinks (LCHS) have been demonstrated as an effective way to resolve this problem, the application of LCHS is limited by the uneven cooling distribution on the surface of the electronic chips and the liquid leakage of the LCHS. The constructal law optimizes the design of the pipeline by introducing the freedom of deformation in the fluid geometry to obtain the optimal global performance. In this study, a novel Y-shaped liquid cooling heat sink (YLCHS) was proposed based on the constructal law, in which the cooling water enters the center of the heat sink through the inlet pipe and diffuses into the periphery through the internal Y-shaped microchannels. A numerical simulation was carried out to determine the cooling effect of the YLCHS. Compared to those of the conventional S-shaped liquid cooling heat sink (CSLCHS), the peak surface temperature and the average surface temperature of the electronic chip with YLCHS were decreased by 15.2 °C and 6.3 °C, respectively. Furthermore, the pressure loss of the electronic chip with YLCHS was also reduced by 63.0%.
Issue Section:
Technical Brief
References
1.
Cho
, J.
, Lim
, T.
, and Kim
, B. S.
, 2009
, “Measurements and Predictions of the Air Distribution Systems in High Compute Density (Internet) Data Centers
,” Energy Build.
, 41
(10
), pp. 1107
–1115
. 10.1016/j.enbuild.2009.05.0172.
Patankar
, S. V.
, 2010
, “Airflow and Cooling in a Data Center
,” ASME J. Heat Mass Transfer
, 132
(7
), p. 073001
. 10.1115/1.40007033.
Cho
, J.
, Yang
, J.
, and Park
, W.
, 2014
, “Evaluation of air Distribution System's Airflow Performance for Cooling Energy Savings in High-Density Data Centers
,” Energy Build.
, 68
, pp. 270
–279
. 10.1016/j.enbuild.2013.09.0134.
Tan
, H.
, Wu
, L.
, Wang
, M.
, Yang
, Z.
, and Du
, P.
, 2019
, “Heat Transfer Improvement in Microchannel Heat Sink by Topology Design and Optimization for High Heat Flux Chip Cooling
,” Int. J. Heat Mass Transfer
, 129
, pp. 681
–689
. 10.1016/j.ijheatmasstransfer.2018.09.0925.
Zhang
, J.
, Zhang
, T.
, Prakash
, S.
, and Jaluria
, Y.
, 2014
, “Experimental and Numerical Study of Transient Electronic Chip Cooling by Liquid Flow in Microchannel Heat Sinks
,” Numer. Heat Transfer, Part A
, 65
(7
), pp. 627
–643
. 10.1080/10407782.2013.8465946.
Zhang
, H. Y.
, Pinjala
, D.
, Wong
, T. N.
, Toh
, K. C.
, and Joshi
, Y. K.
, 2005
, “Single-Phase Liquid Cooled Microchannel Heat Sink for Electronic Packages’
,” Appl. Therm. Eng.
, 25
(10
), pp. 1472
–1487
. 10.1016/j.applthermaleng.2004.09.0147.
Sui
, Y.
, Teo
, C. J.
, Lee
, P. S.
, Chew
, Y. T.
, and Shu
, C.
, 2010
, “Fluid Flow and Heat Transfer in Wavy Microchannels
,” Int. J. Heat Mass Transfer
, 53
(13–14
), pp. 2760
–2772
. 10.1016/j.ijheatmasstransfer.2010.02.0228.
Xie
, G. N.
, Liu
, J.
, Zhang
, W. H.
, and Sunden
, B.
, 2012
, “Analysis of Flow and Thermal Performance of a Water-Cooled Transversal Wavy Microchannel Heat Sink for Chip Cooling
,” ASME J. Electron. Packag.
, 134
, p. 6
.9.
Xie
, G.
, Chen
, Z.
, Sunden
, B.
, and Zhang
, W.
, 2013
, “Numerical Analysis of Flow and Thermal Performance of Liquid-Cooling Microchannel Heat Sinks With Bifurcation
,” Numer. Heat Transfer, Part A
, 64
(11
), pp. 902
–919
. 10.1080/10407782.2013.80768910.
Tuckerman
, D. B.
, and Pease
, R. F. W.
, 1981
, “High-Performance Heat Sinking for VLSI
,” IEEE Electron Device Lett.
, 2
(5
), pp. 126
–129
. 10.1109/EDL.1981.2536711.
Li
, J.
, and Peterson
, G. P.
, 2006
, “Geometric Optimization of a Micro Heat Sink With Liquid Flow
,” IEEE Trans. Compon. Packag. Technol.
, 29
(1
), pp. 145
–154
. 10.1109/TCAPT.2005.85317012.
Li
, J.
, and Peterson
, G. P.
, 2007
, “3-Dimensional Numerical Optimization of Silicon-Based High Performance Parallel Microchannel Heat Sink With Liquid Flow
,” Int. J. Heat Mass Transfer
, 50
(15–16
), pp. 2895
–2904
. 10.1016/j.ijheatmasstransfer.2007.01.01913.
Ma
, D. D.
, Xia
, G. D.
, Wang
, J.
, Yang
, Y. C.
, Jia
, Y. T.
, and Zong
, L. X.
, 2017
, “An Experimental Study on Hydrothermal Performance of Microchannel Heat Sinks With 4-Ports and Offset Zigzag Channels
,” Energy Convers. Manage.
, 152
, pp. 157
–165
. 10.1016/j.enconman.2017.09.05214.
Hajmohammadi
, M. R.
, and Toghraei
, I.
, 2018
, “Optimal Design and Thermal Performance Improvement of a Double-Layered Microchannel Heat Sink by Introducing Al2O3 Nano-Particles Into the Water
,” Phys. A
, 505
, pp. 328
–344
. 10.1016/j.physa.2018.03.04015.
Salman
, B. H.
, Mohammed
, H. A.
, Munisamy
, K. M.
, and Kherbeet
, A. S.
, 2013
, “Characteristics of Heat Transfer and Fluid Flow in Microtube and Microchannel Using Conventional Fluids and Nanofluids: A Review
,” Renewable Sustainable Energy Rev.
, 28
, pp. 848
–880
. 10.1016/j.rser.2013.08.01216.
Dixit
, T.
, and Ghosh
, I.
, 2015
, “Review of Micro- and Mini-Channel Heat Sinks and Heat Exchangers for Single Phase Fluids
,” Renewable Sustainable Energy Rev.
, 41
, pp. 1298
–1311
. 10.1016/j.rser.2014.09.02417.
Bejan
, A.
, 2000
, Shape and Structure, From Engineering to Nature
, Cambridge University Press
, Cambridge
.18.
Li
, B.
, Hong
, J.
, and Ge
, L.
, 2017
, “Constructal Design of Internal Cooling Geometries in Heat Conduction System Using the Optimality of Natural Branching Structures
,” Int. J. Therm. Sci.
, 115
, pp. 16
–28
. 10.1016/j.ijthermalsci.2017.01.00719.
Bejan
, A.
, 1997
, “Constructal-Theory Network of Conducting Paths for Cooling a Heat Generating Volume
,” Int. J. Heat Mass Transfer
, 40
(4
), pp. 799
–816
. 10.1016/0017-9310(96)00175-520.
Mosa
, M.
, Labat
, M.
, and Lorente
, S.
, 2019
, “Role of Flow Architectures on the Design of Radiant Cooling Panels, a Constructal Approach
,” Appl. Therm. Eng.
, 150
, pp. 1345
–1352
. 10.1016/j.applthermaleng.2018.12.10721.
Mosa
, M.
, Labat
, M.
, and Lorente
, S.
, 2019
, “Constructal Design of Flow Channels for Radiant Cooling Panels
,” Int. J. Therm. Sci.
, 145
, p. 106052
. 10.1016/j.ijthermalsci.2019.10605222.
Ernewein
, A. M.
, and Lorente
, S.
, 2019
, “Constructal Design of Thermochemical Energy Storage
,” Int. J. Heat Mass Transfer
, 130
, pp. 1299
–1306
. 10.1016/j.ijheatmasstransfer.2018.10.09723.
Ernewein
, A. M.
, and Lorente
, S.
, 2019
, “Analysis of Thermochemical Energy Storage in an Elemental Configuration
,” Nat. Sci. Rep.
, 9
(1
), p. 15875
. 10.1038/s41598-019-52249-824.
Salimpour
, M. R.
, and Menbari
, A.
, 2015
, “Analytical Optimization of Constructal Channels Used for Cooling a Ring Shaped Body Based on Minimum Flow and Thermal Resistances
,” Energy
, 81
, pp. 645
–651
. 10.1016/j.energy.2015.01.00825.
Almerbati
, A.
, Lorente
, S.
, and Bejan
, A.
, 2018
, “The Evolutionary Design of Cooling a Plate With One Stream
,” Int. J. Heat Mass Transfer
, 116
, pp. 9
–15
. 10.1016/j.ijheatmasstransfer.2017.08.12226.
Srinivasan
, S.
, Al-Suwaidi
, S.
, and Sadr
, R.
, 2014
, “Design of a Mini Heat Sink Based on Constructal Theory for Electronic Chip Cooling
,” Proceedings of the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels
, Chicago, IL
, Aug. 3
, p. V001T05A007.27.
Boichot
, R.
, Luo
, L.
, and Fan
, Y.
, 2009
, “Tree-Network Structure Generation for Heat Conduction by Cellular Automaton
,” Energy Convers. Manage.
, 50
(2
), pp. 376
–386
. 10.1016/j.enconman.2008.09.00328.
Wei
, S.
, Chen
, L.
, and Sun
, F.
, 2009
, “The Area-Point Constructal Optimization for Discrete Variable Cross-Section Conducting Path
,” Appl. Energy
, 86
(7–8
), pp. 1111
–1118
. 10.1016/j.apenergy.2008.06.01029.
Fyrillas
, M. M.
, 2008
, “Heat Conduction in a Solid Slab Embedded With a Pipe of General Cross-Section: Shape Factor and Shape Optimization
,” Int. J. Eng. Sci.
, 46
(9
), pp. 907
–916
. 10.1016/j.ijengsci.2008.03.00430.
Eslami
, M.
, and Jafarpur
, K.
, 2012
, “Optimal Distribution of Imperfection in Conductive Constructal Designs of Arbitrary Configurations
,” J. Appl. Phys.
, 112
(10
), p. 104905
. 10.1063/1.476644331.
Combelles
, L.
, Lorente
, S.
, and Bejan
, A.
, 2009
, “Leaflike Architecture for Cooling a Flat Body
,” J. Appl. Phys.
, 106
(4
), p. 044906
. 10.1063/1.317694132.
Xu
, X.
, Liang
, X.
, and Ren
, J.
, 2007
, “Optimization of Heat Conduction Using Combinatorial Optimization Algorithms
,” Int. J. Heat Mass Transfer
, 50
(9–10
), pp. 1675
–1682
. 10.1016/j.ijheatmasstransfer.2006.10.03733.
Wechsatol
, W.
, Lorente
, S.
, and Bejan
, A.
, 2002
, “Optimal Tree-Shaped Networks for Fluid Flow in a Disc-Shaped Body
,” Int. J. Heat Mass Transfer
, 45
(25
), pp. 4911
–4924
. 10.1016/S0017-9310(02)00211-934.
Gosselin
, L.
, and Bejan
, A.
, 2005
, “Emergence of Asymmetry in Constructal Tree Flow Networks
,” J. Appl. Phys.
, 98
(10
), p. 104903
. 10.1063/1.213389935.
Wang
, X. Q.
, Yap
, C.
, and Mujumdar
, A. S.
, 2006
, “Laminar Heat Transfer in Constructal Microchannel Networks With Loops
,” ASME J. Electron. Pack.
, 128
(3
), pp. 273
–280
. 10.1115/1.222922836.
Xu
, P.
, Wang
, X. Q.
, Mujumdar
, A. S.
, Yap
, C.
, and Yu
, B. M.
, 2009
, “Thermal Characteristics of Tree-Shaped Microchannel Nets With/Without Loops
,” Int. J. Therm. Sci.
, 48
(11
), pp. 2139
–2147
. 10.1016/j.ijthermalsci.2009.03.01837.
Rocha
, L. A. O.
, Lorente
, S.
, and Bejan
, A.
, 2006
, “Conduction Tree Networks With Loops for Cooling a Heat Generating Volume
,” Int. J. Heat Mass Transfer
, 49
(15–16
), pp. 2626
–2635
. 10.1016/j.ijheatmasstransfer.2006.01.01738.
Rocha
, L. A. O.
, Lorente
, S.
, and Bejan
, A.
, 2002
, “Constructal Design for Cooling a Disc-Shaped Area by Conduction
,” Int. J. Heat Mass Transfer
, 45
(8
), pp. 1643
–1652
. 10.1016/S0017-9310(01)00269-139.
Ghaedamini
, H.
, Salimpour
, M. R.
, and Campo
, A.
, 2011
, “Constructal Design of Reverting Microchannels for Convective Cooling of a Circular Disc
,” Int. J. Therm. Sci.
, 50
(6
), pp. 1051
–1061
. 10.1016/j.ijthermalsci.2011.01.01440.
Bejan
, A.
, Rocha
, L. A. O.
, and Lorente
, S.
, 2000
, “Thermodynamic Optimization of Geometry: T- and Y-Shaped Constructs of Fluid Streams
,” Int. J. Therm. Sci.
, 39
(9–11
), pp. 949
–960
. 10.1016/S1290-0729(00)01176-541.
Wang
, Y. K.
, Zhang
, J.
, Zhang
, Y.
, and Geng
, L. L.
, 2019
, Simulation Technology and Additive Manufacturing
, Publishing House of Electronics Industry
, Beijing
.42.
Liu
, J.
, She
, X. H.
, Zhang
, X. S.
, Ma
, L.
, and Zhou
, W.
, 2016
, “Experimental Study of a Novel Double Temperature Chiller Based on R32/R236fa
,” Energy Convers. Manage.
, 124
, pp. 618
–626
. 10.1016/j.enconman.2016.06.02343.
Trutassanawin
, S.
, Groll
, E. A.
, Garimella
, S. V.
, and Cremaschi
, L.
, 2006
, “Experimental Investigation of a Miniature-Scale Refrigeration System for Electronics Cooling
,” IEEE Trans. Compon. Packag. Technol.
, 29
(3
), pp. 678
–687
. 10.1109/TCAPT.2006.88176244.
Marcinichen
, J. B.
, Thome
, J. R.
, and Michel
, B.
, 2010
, “Cooling of Microprocessors With Micro-Evaporation: A Novel two-Phase Cooling Cycle
,” Int. J. Refrig.
, 33
(7
), pp. 1264
–1276
. 10.1016/j.ijrefrig.2010.06.00845.
Cengel
, Y.
, and Cimbala
, J.
, 2013
, Fluid Mechanics Fundamentals and Applications
, McGraw Hill Higher Education
, New York
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