ライブラリ登録: Guest
Begell Digital Portal Begellデジタルライブラリー 電子書籍 ジャーナル 参考文献と会報 リサーチ集
Heat Transfer Research
インパクトファクター: 0.404 5年インパクトファクター: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN 印刷: 1064-2285
ISSN オンライン: 2162-6561

巻:
巻 50, 2019 巻 49, 2018 巻 48, 2017 巻 47, 2016 巻 46, 2015 巻 45, 2014 巻 44, 2013 巻 43, 2012 巻 42, 2011 巻 41, 2010 巻 40, 2009 巻 39, 2008 巻 38, 2007 巻 37, 2006 巻 36, 2005 巻 35, 2004 巻 34, 2003 巻 33, 2002 巻 32, 2001 巻 31, 2000 巻 30, 1999 巻 29, 1998 巻 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2012005619
pages 561-588

NUMERICAL STUDY OF THREE-DIMENSIONAL CONJUGATE HEAT TRANSFER IN LIQUID MINI-SCALE HEAT SINK

Mohamed Khamis Mansour
Department of Mechanical Engineering, Faculty of Engineering, Alexandria University

要約

This paper presents a numerical study of the effect of the substrate material and liquid cooling medium on the heat transfer characteristics for three-dimensional conjugate heat transfer problem of laminar flow through a circular minichannel. A uniform heat flux of 100 kW/m2 is applied at the bottom-side of the substrate while the topside surface is considered adiabatic. Three different materials of the substrate have been adopted: copper (ks = 398 W/m·K), silicon (ks = 189 W/m·K), and stainless steel (ks = 15.9 W/m·K). Two different coolant liquids have also been proposed − water and mercury. The thermal characteristics of the conjugate heat transfer problem are represented by the local Nusselt (Nu) number, local bottom-side surface temperature of the channel, local heat flux, and local temperature difference between the solid and fluid domains. The effect of inlet coolant velocity is investigated with two different inlet velocities of 0.1 m/s and 0.05 m/s. The study shows that the thermal characteristics of the minichannel using water as a coolant medium with the three different substrate materials are in contradiction with those of the minichannel using mercury. The contradiction is generated as a result of the competitive effects of axial fluid conduction, and axial wall conduction as well as the competitive effects of the radial and circumferential heat diffusion in the fluid domain. The theoretical model has been verified by comparing the predicated results with those obtained from the available analytical and experimental data with maximum deviation of 6.7%. The study is considered as the benchmark and helpful guidelines in the design of small-scale circular channels which are used for electronic cooling systems.


Articles with similar content:

HEAT LOSS AND LIQUID STEEL FLOW IN METALLURGICAL LADLES DURING HOLDING PERIOD IN CONTINUOUS CASTING
ICHMT DIGITAL LIBRARY ONLINE, Vol.3, 1997, issue
Renato Minelli Figueira, Eduardo Bauzer Medeiros, Eliana Ferreira Rodrigues
PREDICTION OF THE RATE OF MOISTURE EVAPORATION FROM JAGGERY IN GREENHOUSE DRYING USING THE FUZZY LOGIC
Heat Transfer Research, Vol.46, 2015, issue 10
P. Vishwanath Kumar, Om Prakash, Ajay Kumar Kaviti, Anil Kumar
Possibilities of Laser Methods in Laboratory Diagnostics
Telecommunications and Radio Engineering, Vol.52, 1998, issue 4
O. A. Karabanova, N. P. Mustetsov
EFFECT OF THE METALLIC FOAM HEAT SINK SHAPE ON THE MIXED CONVECTION JET IMPINGEMENT COOLING OF A HORIZONTAL SURFACE
Journal of Porous Media, Vol.21, 2018, issue 4
Mohamed Hairol Bin Hj Mohd. Ali, Nurul Hasan, Nawaf H. Saeid
PARALLEL TRIANGULAR CHANNEL SYSTEM FOR LATENT HEAT THERMAL ENERGY STORAGES
International Heat Transfer Conference 16, Vol.12, 2018, issue
Assunta Andreozzi, Davide Ercole, Bernardo Buonomo, Oronzio Manca