Evolution in the Design of V-Shaped Highly Conductive Pathways Embedded in a Heat-Generating Piece

This paper presents the evolution of architecture of high conductivity pathways embedded into a heat generating body on the basis of Constructal theory. The main objective is to introduce new geometries for the highly conductive pathways, precisely configurations shaped as V. Four types of V-shaped inserts, evolving from “V1” to “V4,” have been comparatively considered. Geometric optimization of design is conducted to minimize the peak temperature of the heat generating piece. Many ideas emerged from this work: first of all, the numerical results demonstrated that the V-shaped pathways remarkably surpass the performance of some basic configurations already mentioned in literature, i.e., “I and X-shaped” pathways. Furthermore, the evolution of configurations from V1 to V4 resulted in a gradual reduction of the hot spot temperature, according to the principle of “optimal distribution of imperfections” that characterizes the constructal law.

[1]  Adrian Bejan,et al.  Constructal design for cooling a disc-shaped area by conduction , 2002 .

[2]  Arun S. Mujumdar,et al.  Thermal characteristics of tree-shaped microchannel nets for cooling of a rectangular heat sink , 2006 .

[3]  Borut Mavko,et al.  Effect of axial conduction on the heat transfer in micro-channels , 2004 .

[4]  A. Bejan Shape and Structure, from Engineering to Nature , 2000 .

[5]  Maroun Nemer,et al.  A new perspective of constructal networks cooling a finite-size volume generating heat , 2011 .

[6]  Majed Almogbel,et al.  Constructal tree-shaped fins , 2005 .

[7]  A. Bejan Constructal-theory network of conducting paths for cooling a heat generating volume , 1997 .

[8]  C. Elphick,et al.  Constructal Theory: From Engineering to Physics, and How Flow Systems Develop Shape and , 2006 .

[9]  Adrian Bejan,et al.  Conduction trees with spacings at the tips , 1999 .

[10]  Adrian Bejan,et al.  Constructal optimization of nonuniformly distributed tree-shaped flow structures for conduction , 2001 .

[11]  Adrian Bejan,et al.  Conduction tree networks with loops for cooling a heat generating volume , 2006 .

[12]  Lotfollah Ghodoossi,et al.  Conductive cooling of triangular shaped electronics using constructal theory , 2004 .

[13]  Luiz Alberto Oliveira Rocha,et al.  Constructal design of Y-shaped assembly of fins , 2006 .

[14]  A. H. Reis,et al.  Constructal theory of flow architecture of the lungs. , 2004, Medical physics.

[15]  Fengrui Sun,et al.  The area-point constructal optimization for discrete variable cross-section conducting path , 2009 .

[16]  D. Turcotte,et al.  Shapes of river networks and leaves: are they statistically similar? , 2000, Philosophical transactions of the Royal Society of London. Series B, Biological sciences.

[17]  C. Biserni,et al.  Constructal design of X-shaped conductive pathways for cooling a heat-generating body , 2013 .

[18]  Louis Gosselin,et al.  Constructal heat trees at micro and nanoscales , 2004 .

[19]  A. Bejan Advanced Engineering Thermodynamics , 1988 .

[20]  R. Pease,et al.  High-performance heat sinking for VLSI , 1981, IEEE Electron Device Letters.

[21]  Luiz Alberto Oliveira Rocha,et al.  Constructal design of T–Y assembly of fins for an optimized heat removal , 2009 .

[22]  Sadegh Poozesh,et al.  Valuable reconsideration in the constructal design of cavities , 2013 .

[23]  A. Bejan,et al.  Cylindrical trees of pin fins , 2000 .

[24]  Adrian Bejan,et al.  Constructal T-shaped fins , 2000 .

[25]  A. Bejan,et al.  Constructal tree networks for heat transfer , 1997 .

[26]  A. Bejan,et al.  Constructal multi-scale pin fins , 2010 .

[27]  Dipankar Bhanja,et al.  Performance and optimization analysis of a constructal T-shaped fin subject to variable thermal conductivity and convective heat transfer coefficient , 2010 .

[28]  Luiz Alberto Oliveira Rocha,et al.  Geometric optimization of T-Y-shaped cavity according to Constructal design , 2009 .

[29]  P. Naphon,et al.  Study on the convective heat transfer and pressure drop in the micro-channel heat sink , 2009 .

[30]  Adrian Bejan,et al.  Design with constructal theory , 2008 .