Heat transfer analysis of lateral perforated fin heat sinks

Shaeri, Mohammad Reza; Yaghoubi, M.; Jafarpur, Khosrow

doi:10.1016/j.apenergy.2008.12.029

Cited by 118 publications

(50 citation statements)

References 28 publications

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“…The data gathered around the process are not sufficient to analyze the plant behavior. Mathematical models supply valuable information on the behavior of the plant and can be used to search for optimal operating conditions [1,3,[4][5][6]. Knowledge of combined convective and radiative energy transfer in participating media is crucial for the determination of heat fluxes on the walls of systems in numerous engineering applications.…”

Section: Introductionmentioning

confidence: 99%

Novel predictive tools for design of radiant and convective sections of direct fired heaters

Bahadori

Vuthaluru

2010

Applied Energy

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Section: Introductionmentioning

confidence: 99%

Novel predictive tools for design of radiant and convective sections of direct fired heaters

Bahadori

Vuthaluru

2010

Applied Energy

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“…The two models were perforated at the 5mm from bottom tip by (7mm and 8mm) as shown in figure (5). Each model contains four or five pin fins as described in the table (1).…”

Section: Figure 4b Test Modelmentioning

confidence: 99%

“…To show the advantages of the perforation, [3] shows The thermal profile of the perforated fins in a staggered manner performs better than the solid elliptical pin fin according to the Static temperature, Nusselt number and total heat that is calculated. The effects of the porosity on the performance of the fins were investigated by [4,5]for longitudinal and lateral perforation. Rectangular cross section with different dimensions and multi numbers of the perforation was considered to show the thermal enhancement at various operating conditions.…”

Section: Introductionmentioning

confidence: 99%

Optimization of a rectangular pin fin using rectangular perforations with different inclination angles

Jasim¹,

Söylemezr²

2017

IJHT

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Perforated fins, because of their compactness, low weight and high effectiveness are widely used in heat sinks to enhance the heat transfer from electronic equipments. The innovative form of the perforated fin (with inclination angles) was considered for the rectangular pin fin. In the analytical solution, the Degenerate Hypergeometric Equation (DHE) was used as a new derivative method and then solved by Kummer's series. Also, Signum function is used to model the opposite and mutable approach heat transfer area. This article presents a combined open literature and Experimental work of various cases to validate the analytical study. Two models were perforated experimentally at the 5mm from bottom tip at a various inclination angles by using a wire cut electrical discharge machining (Wire EDM) and EDM drilling machine. The present mathematical model has good reliability according to the high agreement of the validation results about (0.33%-1.4%). It was found that use of the inclined perforation fin leads to decreased thermal resistance and improvement in the thermal performance of the pin fin by enhancing the heat transfer. Also, the optimization can be achieved by minimizing the weight and length of the pin fin based on the Multi advantages of the present model. Likewise, Entropy generation was minimized with increases the open area ratio at a certain Rayleigh number and constant heat flux.

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“…More recently, there are still numerous researches on the development of new types of fin for heat transfer enhancement [10][11][12], including that of offset strip fins compact heat exchanger [13], fins with grooves or vortex generators [14,15]. El Hassan Ridouane found that the grooves on the fin surface can enhance local heat transfer significantly [16].…”

Section: Introductionmentioning

confidence: 99%

On the Heat Transfer Enhancement of Plate Fin Heat Exchanger

Xue¹,

Ge²,

Du³

et al. 2018

Preprint

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Abstract:The plate fin heat exchanger is the compact heat exchanger applied in many industries because of its high thermal performance. To enhance the heat transfer of plate fin heat exchanger in further, three new kinds of wavy plate fins, namely perforated wavy fin, staggered wavy fin and discontinuous wavy fin are proposed and investigated by CFD simulations. The effects of key design parameters, including that of waviness aspect ratios, perforation diameters, stagger ratios and breaking distance are investigated, respectively, with the Reynolds number changes from 500 to 4500. It is found that due to the swirl flow and efficient mixing of fluid, the perforation, serration and breaking techniques are beneficial for the enhancement of heat transfer compared to the traditional wavy fin. At the same time, serration is beneficial to reduce the friction factor, and the breaking technique can reduce heat transfer area as well as enhance heat transfer performance. Through the performance evaluation criteria, the staggered wavy fin has an advantage over the small waviness aspect ratio compared to the perforated wavy fin. The maximum performance evaluation criteria (PEC), as high as 1.24, can be obtained for the perforated wavy fin at the largest waviness aspect ratio.

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Heat transfer analysis of lateral perforated fin heat sinks

Cited by 118 publications

References 28 publications

Novel predictive tools for design of radiant and convective sections of direct fired heaters

Novel predictive tools for design of radiant and convective sections of direct fired heaters

Optimization of a rectangular pin fin using rectangular perforations with different inclination angles

On the Heat Transfer Enhancement of Plate Fin Heat Exchanger

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