Constructal design of heat sources with different heat generation rates for the hot spot mitigation

Thermal Analysis of Melting Occurring Inside a Finned Rectangular Enclosure Equipped with Discrete Pulsed Protruding Heat Sources

“…The melting of a solid-liquid phase change material (PCM) in a rectangular enclosure equipped with discrete protruding heat sources, flush-mounted on one of its vertical walls, has been the subject of several analytical, experimental and numerical investigations [1][2][3][4][5][6][7][8][9][10]. Chu et al [1] were the first to investigate the effect of heater size, location, aspect ratio and boundary conditions for a laminar flow and arrive at a relationship between the Rayleigh number and the optimum position of the heat source that maximizes heat transfer.…”

“…The influence of changes in the pulses frequency, heat source location and the aspect ratio on the thermal performance of the PCM unit appear to be significant as examined by Krishnan et al [7]. In order to mitigate the hot spots, Birinci et al [8] have determined an optimum ratio using six different heat sources with different electrical powers, where the average and total heat generation rates are kept equal for all the examined cases. The Reynolds number varied from 792 to 3962 and all the three known heat transfer mechanisms have been taken into account with an integrated approach to calculate the dimensionless global conductance of the integrated circuit pack.…”

Constructal Optimizations of Line-to-Line Vascular Channels with Turbulent Convection Heat Transfer

“…Since it was proposed, constructal theory has been widely used in various fields [ 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ]. As one of the main fields, it has opened up new research on the optimizations of heat and mass transfer, such as heat source [ 23 , 24 , 25 , 26 ], heat conduction [ 27 , 28 , 29 , 30 ], convection heat transfer [ 31 , 32 , 33 ] and heat exchange equipment [ 34 , 35 , 36 , 37 , 38 ].…”