Evaluation of heat transfer performances of various rib shapes

Moon, Mi-Ae; Park, Min-Jung; Kim, Kwang‐Yong

doi:10.1016/j.ijheatmasstransfer.2013.12.026

Cited by 96 publications

(23 citation statements)

References 20 publications

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“…The largest eddies and near-wall T.K.E distribution are induced by the triangular ribs, the second largest is for square ribs, and the smallest is for circular ribs. This conclusion is consistent with the literature results for heat transfer enhancement by different rib shapes [36].…”

Section: Mechanisms Of Deposition Enhancement For Different Rib Shapessupporting

confidence: 94%

A numerical study of particle deposition in ribbed duct flow with different rib shapes

Lü

2015

Building and Environment

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Section: Mechanisms Of Deposition Enhancement For Different Rib Shapessupporting

confidence: 94%

A numerical study of particle deposition in ribbed duct flow with different rib shapes

Lü

2015

Building and Environment

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“…Implementing passive techniques in an absorber plate by using irregular forms like ribs, grooves, baffles, winglets, and twisted tapes, increases the heat transfer enhancement in solar duct [1][2][3]. Numerous authors [4][5][6][7] have conducted analytical and experimental investigations implementing passive techniques in absorber plates that resulted in heat transfer enhancement. The main goal of this review paper is to provide information about the importance of a rib molded on: (a) Different shaped 3…”

Section: Introductionmentioning

confidence: 99%

A Performance Evaluation of a Solar Air Heater Using Different Shaped Ribs Mounted on the Absorber Plate—A Review

et al. 2018

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In this paper, the effect of various shapes of ribs used in Solar Air Heaters (SAHs) was discussed. The review is concentrated on the geometry of the rib and its location on the SAH panel. Both numerical and experimental works were considered for discussion with dry air and Nano fluids as a working fluid. The influence of various shapes, such as an L shape, W shape, V shape, Multiple V shape, V shape with a gap, detachable & attachable ribs etc., was analyzed. The common fact observed from this analysis is that the implementation of artificial roughness in the absorber plate results in a considerable increase in the rate of heat transfer. Further, it is observed that ‘Multiple V-shaped with open between the ribs’ results in the maximum thermal enhancement when compared to the other shapes.

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“…The heated surface of 135 • V-shaped mid-truncated ribs provided the highest heat transfer enhancement, while the heated surface of 90 • mid-truncated ribs with no staggered arrangement behaved best in reducing the pressure loss penalty. Moon et al (2014) proved that the new boot-shaped rib gave the best heat transfer performance with an average friction loss performance, and the reverse pentagonal rib gave the best friction loss performance. Dellil et al (2004) conducted a geometrical parametric study by changing the amplitudeto-wavelength ratio.…”

Section: Introductionmentioning

confidence: 94%

Experimental and numerical study of the heat transfer and pressure drop in triangular chevron channels

Dolatabadi

Aghdam

2018

jtam

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Chevron channels are one of the popular techniques that are extensively used in manufacturing of compacted heat exchangers. The present paper deals with the experimental and numerical analysis on the fluid flow and heat transfer in a triangular chevron channel. The studies are carried out for a uniform wall heat flux equal to 1350 W/m 2 using air as the working fluid. The Reynolds number varies from 1000 to 10 000, phase shifts 0 • φ 180 • , and channel heights are5 D 35 mm. The study shows a significant effect of the optimum structure of the triangular chevron on the heat transfer rate and friction loss over the channel wall. The Nusselt number increases and the Thermal Enhancement Factor (TEF) decreases with the increasing Reynolds number. The best performance is noticed on the phase shift, φ = 90 •. For triangular chevron surfaces, the maximum heat transfer is obtained 33.33% up to 37.5% more than for a smooth wall channel.

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Evaluation of heat transfer performances of various rib shapes

Cited by 96 publications

References 20 publications

A numerical study of particle deposition in ribbed duct flow with different rib shapes

A numerical study of particle deposition in ribbed duct flow with different rib shapes

A Performance Evaluation of a Solar Air Heater Using Different Shaped Ribs Mounted on the Absorber Plate—A Review

Experimental and numerical study of the heat transfer and pressure drop in triangular chevron channels

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