|Table of Contents|

Numerical simulation of natural cooling vapor chamber(PDF)


Research Field:
Publishing date:


Numerical simulation of natural cooling vapor chamber
Hu LinnaLi Qiang
School of Energy and Power Engineering,Nanjing University of Science and Technology,Nanjing 210094,China
natural cooling vapor chambers classical phase change theory volume of fluid(VOF)function two-phase flow vapor-liquid phase change
A new natural cooling vapor chamber is proposed for no noise and temperature uniformity of electronic equipments.Two-phase fluid pipelines are set in the vapor chamber.Heat transfer performance and temperature uniformity are enhanced through the vapor-liquid phase change of working fluid.A new flow and heat transfer model is created using the classical phase change theory combining the volume of fluid(VOF)function equation,and the two-phase flow,heat transfer and vapor-liquid phase change process in the vapor chamber are simulated.Simulation results show that the vapor chamber works under gravity mostly; when the filling ratio is 70%,the temperature difference and the thermal resistance are the smallest; the heat transfer performance of the working fluid R134a is better than that of R236fa and R245fa.


[1] 郭磊.电子器件散热及冷却的发展现状研究[J].低温与超导,2014,42(2):62-66.
Guo Lei.Development of heat dissipation in electronics components[J].Cryogenics and Superconductivity,2014,42(2):62-66.
[2]Mizuta K,Fukunaga R,Fukuda K,et al.Development and characterization of a flat laminate vapor chamber[J].Applied Thermal Engineering,2016,104:461-471.
Wang Hongyan,Hao Limin,Zhao Yaohua,et al.A heat transfer device combined with vapor-chamber and micro flat heat pipe array[J].Journal of Engineering Thermophysics,2011,32(4):651-654.
[4]Lu Xiao,Wei Jinjia.Experimental study on a novel loop heat pipe with both flat evaporator and boiling pool[J].International Journal of Heat and Mass Transfer,2014,79:54-63.
[5]Kim H J,Lee S H,Kim S B,et al.The effect of nanoparticle shape on the thermal resistance of a flat-plate heat pipe using acetone-based Al2O3 nanofluids[J].International Journal of Heat and Mass Transfer,2016,92:572-577.
[6]Lee W H.A pressure iteration scheme for two-phase flow modeling.Computational methods for two-phase flow and particle transport[M].Singapore,Singapore:World Scientific Publishing Co Pte Ltd,2013:61-82.
[7]Goodson K,Rogacs A,David M,et al.Volume of fluid simulation of boiling two-phase flow in a vapor-venting microchannel[J].Frontiers in Heat and Mass Transfer(FHMT),2010,1(1):1-11.
[8]Yang Z,Peng X F,Ye P.Numerical and experimental investigation of two phase flow during boiling in a coiled tube[J].International Journal of Heat and Mass Transfer,2008,51(5-6):1003-1016.
[9]Liu Zhenyu,Sunden B,Yuan Jinliang.VOF modeling and analysis of filmwise condensation between vertical parallel plates[J].Heat Transfer Research,2012,43(1):47-68.
Zhang Ming,Liu Zhongliang,Wang Chen.The integrated design of heat pipe spreader and heat sink[J].Journal of Engineering Thermophysics,2010,31(5):853-856.
[11]Jouhara H,Fadhl B,Wrobel L C.Three-dimensional CFD simulation of geyser boiling in a two-phase closed thermosyphon[J].International Journal of Hydrogen Energy,2016,41(37):16463-16476.
[12]Alizadehdakhel A,Rahimi M,Alsairafi A A.CFD modeling of flow and heat transfer in a thermosyphon[J].International Communications in Heat and Mass Transfer,2010,37(3):312-318.
[13]Ong C L,Thome J R.Flow boiling heat transfer of R134a,R236fa and R245fa in a horizontal 1.030 mm circular channel[J].Experimental Thermal and Fluid Science,2009,33(4):651-663.
[14]Ong C L,Thome J R.Macro-to-microchannel transition in two-phase flow:Part 2—Flow boiling heat transfer and critical heat flux[J].Experimental Thermal and Fluid Science,2011,35(6):873-886.
[15]Tibiri?á C B,Ribatski G.Flow boiling heat transfer of R134a and R245fa in a 2.3 mm tube[J].International Journal of Heat and Mass Transfer,2010,53(11):2459-2468.
[16]Bertsch S S,Groll E A,Garimella S V.Effects of heat flux,mass flux,vapor quality,and saturation temperature on flow boiling heat transfer in microchannels[J].International Journal of Multiphase Flow,2009,35(2):142-154.
[17]Cooper M G.Heat flow rates in saturated nucleate pool boiling—A wide-ranging examination using reduced properties[J].Advances in Heat Transfer,1984,16:157-239.
[18]Bennett D L,Davis M W,Hertzler B L.Suppression of saturated nucleate boiling by forced convective flow[J].AIChE Symposium Series,1980,76(199):91-103.


Last Update: 2017-06-30