Journal ArticleDOI
Thermal analysis and optimum fin length of a heat sink
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A theoretical analysis of the cooling effect of a heat sink is presented in this paper, where the optimum heat transfer equation can be utilized to obtain the optimum length of fins in a sink, which affects the overall thermal effectiveness of the heat sink.Abstract:
A theoretical analysis of the cooling effect of a heat sink is presented in this study. With the input data of Biot number, Bi, and heat transfer coefficient ratios, H and H *, the optimum heat transfer equation can be utilized to obtain the optimum length of fins in a heat sink, which affects the overall thermal effectiveness of the heat sink. This optimum equation is in transcendental form, which involves three dimensionless parameters, $\sqrt{\hbox{Bi}}$ S opt. , $\sqrt{\hbox{Bi}}$ H , and $\sqrt{\hbox{Bi}}$ H *. Finally, the thermal resistance of a heat sink is derived and examples are provided to illustrate the effect on the cooling performance of a heat sink under various design conditions.read more
Citations
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Journal ArticleDOI
High power density of radiative-cooled compact thermoelectric generator based on body heat harvesting
TL;DR: In this paper, a TEG with the radiative heat sink (TEG_rad) generates power by depositing heat into a cold space (temperature of 3 K) through passive radiative cooling.
Journal ArticleDOI
Performance and optimum design analysis of convective fin arrays attached to flat and curved primary surfaces
Balaram Kundu,Prasanta Kumar Das +1 more
TL;DR: In this paper, a model has been developed analytically to carry out the performance and optimum design analysis of four fin arrays, namely, LRFA, ARFA, LTRA and ATFA, under convective cooling conditions.
Journal ArticleDOI
Numerical Analysis on Natural Convection Heat Transfer of a Heat Sink with Cylindrical Pin Fin
TL;DR: In this paper, the authors studied the heat transfer performance of heat sink with parametric variations of number and height of pin fin at temperature 308K, 323K, 338K, 353K and 368K.
Journal ArticleDOI
Optimum Thermal Analysis of a Heat Sink with Various Fin Cross-Sections by Adjusting Fin Length and Cross-Section
TL;DR: In this paper, a theoretical analysis of a heat sink is presented to pursue the purpose of maximum thermal dissipation and the least material cost, where the longitudinal fin arrays can have either square, rectangular, equilaterally triangular, or cylindrical cross-section.
References
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Extended surface heat transfer
TL;DR: In this paper, the authors present an algorithm for Finned Array Assembly, which is based on linear transformations with simplified constraints and convection coefficients with real constraints, and they show that it achieves the optimum design of Radiating and Convecting-Radiating Fins.
Journal ArticleDOI
Optimum design and selection of heat sinks
TL;DR: In this paper, an analytical simulation model has been developed for predicting and optimizing the thermal performance of bidirectional fin heat sinks in a partially confined configuration, and sample calculations are carried out, and parametric plots are provided, illustrating the effect of various design parameters on the performance of a heat sink.
Journal ArticleDOI
Optimization of plate fin heat sinks using entropy generation minimization
TL;DR: In this paper, the authors proposed an approach for incorporating forced convection through the specification of a fan curve into the optimization procedure, providing a link between optimized design parameters and the system operating point.
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