Optimum design of a longitudinal fin array with convection and radiation heat transfer using a genetic algorithm

Azarkish, Hassan; Sarvari, S. M. Hosseini; Behzadmehr, A.

doi:10.1016/j.ijthermalsci.2010.06.023

Cited by 41 publications

(8 citation statements)

References 23 publications

(28 reference statements)

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“…The silicon walls act as two non-uniform cross section fins that are exposed to the ambient with variable convective heat transfer coefficient and also variable temperature. The one dimensional finite volume method is applied to solve this kind of conjugated heat transfer problem [24,25]. Subcooled water mass flow rate and its temperature are considered as inlet boundary conditions.…”

Section: Modelingmentioning

confidence: 99%

Experimental and numerical investigation of a shaped microchannel evaporator for a micro Rankine cycle application

Azarkish

Arslan

Behzadmehr

et al. 2015

International Journal of Thermal Sciences

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Section: Modelingmentioning

confidence: 99%

Experimental and numerical investigation of a shaped microchannel evaporator for a micro Rankine cycle application

Azarkish

Arslan

Behzadmehr

et al. 2015

International Journal of Thermal Sciences

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“…They found that adding interruptions to verticallymounted rectangular fins can enhance the heat transfer considerably. Azarkish et al [11] investigated the optimum geometry and the number of fins for maximum rate of heat transfer from the array. The effects of the base temperature, the fin length and the height of array on the optimum geometry and on the number of fins were investigated by comparing the results obtained for several test cases.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Rectangular Fins with Holes in Free Convection

Singh¹

2017

IJRASET

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In the present work, an experimental study has been conducted on rectangular fin array with holes under free convection heat transfer. The effect of perforation diameter and angle of inclination on heat transfer from rectangular fin array have been analysed. The performance of solid fin array and the perforated fin arrays with fin spacing 6mm, fin perforation diameter of 4, 6 and 8mm, and fin inclination angle 0, 30, 45, 60 and 90º, are investigated and compared in steady state heat transfer. It was found that with the increase in the fin perforation diameter, the increase in the heat transfer rate was achieved with the advantage of weight reduction of fin array block. With the increase in fin inclination angle from 0 to 90º, an increase in heat transfer rate was also observed.

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“…Dogan and Sivrioglu [11] experimentally investigated mixed convection heat transfer, and the results obtained showed that the optimum fin spacing which yielded the maximum heat transfer is = 8-9 mm and the optimum fin spacing depends on the value of Ra. Azarkish et al [12] used a modified genetic algorithm to maximize the objective function which is defined as the net heat transfer rate from the fin surface for a given height. Their results show that the number of the fins is not affected by the fin profile, but the heat transfer enhancement for the arrays with optimum fin profile is about 1-3 percent more than that for the arrays with conventional fin profiles.…”

Section: Introductionmentioning

confidence: 99%

A Numerical Study of Natural Convection Heat Transfer in Fin Ribbed Radiator

Dou¹,

Jiang²,

Zhang³

2015

Mathematical Problems in Engineering

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This paper numerically investigates the thermal flow and heat transfer by natural convection in a cavity fixed with a fin array. The computational domain consists of both solid (copper) and fluid (air) areas. The finite volume method and the SIMPLE scheme are used to simulate the steady flow in the domain. Based on the numerical results, the energy gradient function of the energy gradient theory is calculated. It is observed from contours of the temperature and energy gradient function that the position where thermal instability takes place correlates well with the region of large values, which demonstrates that the energy gradient method reveals the physical mechanism of the flow instability. Furthermore, the effects of the fin height, the fin number, and the fin shape on the heat transfer rate are also investigated. It is found that the thermal performance of the fin array is determined by the combined effect of the fin space and fin height. It is also observed that the effect of fin shape on heat transfer is insignificant.

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Optimum design of a longitudinal fin array with convection and radiation heat transfer using a genetic algorithm

Cited by 41 publications

References 23 publications

Experimental and numerical investigation of a shaped microchannel evaporator for a micro Rankine cycle application

Experimental and numerical investigation of a shaped microchannel evaporator for a micro Rankine cycle application

Performance Evaluation of Rectangular Fins with Holes in Free Convection

A Numerical Study of Natural Convection Heat Transfer in Fin Ribbed Radiator

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