Simulation and Analysis of Flow Pattern in Cross-Corrugated Plate Heat Exchangers

Zhang, Guanmin; Tian, Mei; Zhou, Shoujun

doi:10.1016/s1001-6058(06)60133-9

Cited by 35 publications

(9 citation statements)

References 4 publications

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“…The effect of corrugation tilt angle on heat transfer and pressure drop was investigated. They observed that the numerical results matched well with the experimental results [12]. Eimsa-ard and Promvonge (2008) performed a numerical analysis of turbulent forced convection in a twodimensional channel with transverse grooves using CFD software.…”

Section: Introductionmentioning

confidence: 55%

Investigation of Convective Heat Transfer and Friction Factor in Corrugated Channels with Different Inclination Angles Using Computational Fluid Dynamics

Aslan

Kepekçi

2021

J. Adv. Therm. Sci. Res.

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Convective heat transfer and friction factor properties for periodic undulating channels are numerically investigated. The finite volume method (FVM) was used in the numerical study. Three different Reynolds averaged numerical simulation (RANS) based turbulence models, shear stress transport SST k-ω and transition SST model were used and compared with each other. Two different channels were used; the first geometry is a sharp corrugated channel with a 30° inclination angle, and the second geometry is a sharp corrugated channel with a 45° inclination angle. The Reynolds number varies in the range of 2000-7500. The Prandtl number was kept constant at 0.7. Nusselt number, friction factor, Reynolds number, and variations of the good factor were investigated. The effect of inclination angle and pitch are discussed.

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Section: Introductionmentioning

confidence: 55%

Investigation of Convective Heat Transfer and Friction Factor in Corrugated Channels with Different Inclination Angles Using Computational Fluid Dynamics

Aslan

Kepekçi

2021

J. Adv. Therm. Sci. Res.

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“…Zhang ve Tian, dalga yüzeyli levha ısı değiştiricilerinde dalga eğim açısının ısı geçişi ve basınç düşümü üzerindeki etkilerini yaptıkları sayısal çalışmalarında RNG k-ε modeli kullanılmışlardır. Sayısal sonuçların önceki deneysel sonuçlarla uyumlu olduğunu bulunmuşlardır [16]. Gimbun ve ark.…”

Section: Li̇teratür Araştirmasi (Literature Search)unclassified

Numerical Analisis by RNG k-ε Turbulent Model of a Concentric Tube Heat Exchanger with Coiled Wire Turbulator

Şahi̇n

Dal²,

Özkaya³

2020

Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji

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In this study, a concentric tube heat exchanger with coiled wire turbulators were analysised numerically by a CFD code namely ANSYS FLUENT using RNG k-ε Turbulent Model in order to be reduced heat exchanger sizes and increased heat transfer enhancement. Figure A. The changing of numerical Nu number according to Re numberPurpose: In this study, it is aimed to compare numerical models with an experimental system previously study in literature by using passive method one of heat transfer enhancement of a concentric tube heat exchanger with coiled wire turbulators. Theory and Methods:The analyses were done in a range of Reynolds (Re) number from 3000 to 18000. The numerical simulations were done by using a CFD code namely ANSYS FLUENT, using finite volume method. In numerical analysis, three main turbulence models of RNG k-ε were employed in the simulations such as Model ➀ (RNG-Standard wall function), Model ➁ (RNG-Non-Equilibrium wall function) and Model ➂ (RNG-Enhanced wall treatment). Results:The numerical analyses carried out to compare with the experimental results in order to determine the best fitting model using each three main turbulence models of RNG k-ε model, Model ➀ has given the best fitting result. Conclusion:When turbulence models are compared with experimental results; Model ➀ has given more fitting result than Model ➁. Model ➂ is far from experimental results compared to other solutions. No k-ε model is not fitting with the data obtained from the experiment results in the Re Number range of 3000 ≤ Re ≤ 7000. When close to Re number value of 7000, the Nu number values obtained by Model ➂ have been far from experimental results.

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“…Moreover, the dominance of the two flow components (zig-zag flow and furrow flow) is strongly dependent on the chevron angle. Namely, the furrow flow is dominant for small chevron angles, while the zig-zag component of the flow becomes increasingly significant as β increases [2,19,24,25,32,153]. Compared with the furrow flow, more impingements of the fluid on the corrugation wall as well as more intense fluid separations and reattachments are generated in the zig-zag flow, which are beneficial for the energy exchange and result in more intensified heat transfer.…”

Section: Effects Of Geometrical Parameters On the Single-phase Heat Tmentioning

confidence: 99%

“…With small β, A is large enough to overcome the resistance and drive the fluid flow along the corrugation. As β increases, the component of the furrow flow is suppressed due to the decrease of A [153]. Besides the chevron angle and the corrugation, the aspect ratio also has significant effect upon the thermal-hydraulic performance, i.e.…”

Section: Effects Of Geometrical Parameters On the Single-phase Heat Tmentioning

confidence: 99%

A review of heat transfer enhancement techniques in plate heat exchangers

Zhang

Zhu

Mondéjar

et al. 2019

Renewable and Sustainable Energy Reviews

208

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Simulation and Analysis of Flow Pattern in Cross-Corrugated Plate Heat Exchangers

Cited by 35 publications

References 4 publications

Investigation of Convective Heat Transfer and Friction Factor in Corrugated Channels with Different Inclination Angles Using Computational Fluid Dynamics

Investigation of Convective Heat Transfer and Friction Factor in Corrugated Channels with Different Inclination Angles Using Computational Fluid Dynamics

Numerical Analisis by RNG k-ε Turbulent Model of a Concentric Tube Heat Exchanger with Coiled Wire Turbulator

A review of heat transfer enhancement techniques in plate heat exchangers

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