Numerical and experimental studies of threedimensional plate-fin and tube heat exchangers

Jang, Jiin Yuh; Wu, Mu Cheng; Chang, Win−Jin

doi:10.1016/0017-9310(95)00341-x

Cited by 129 publications

(51 citation statements)

References 12 publications

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“…In this study a laminar flow model is adopted in all computations with the Reynolds number being varied from 1000 to 6000 (based on fin collar outside diameter, calculated Reynolds number in the present study is also less than this value. In addition, several studies including laminar heat transfer using similar computational models have been published in international journals [14][15][16][28][29][30][31][32]. This gives support and justification that a laminar flow model might be acceptable in the computations.…”

Section: Adoption Of Flow Modelmentioning

confidence: 80%

“…By having tested fourteen samples Rich [2][3] then reported that under the experimental range the intensity of heat transfer did not depend on the fin pitch and the pressure drop per tube was independent of the number of tube rows. McQuiston [4,5] Considerable efforts on numerical studies of plain fin-and-tube heat exchangers were reported in [12][13][14][15][16][17]. Bestani et al [18] earlier conducted three-dimensional simulations on pattern of flow passing around a cylinder.…”

Section: Introductionmentioning

confidence: 99%

“…They also compared results obtained from two-dimensional and three-dimensional computations and found difficulties in the three-dimensional simulations. Jang et al [14] reported that the heat transfer is independent of the number of tube-rows when this number is larger than four, and the heat transfer coefficient and friction factor of staggered tube arrangement offers 15% to 27%, and 20% to 25%, respectively, higher than those of in-line tube arrangement.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Parametric study and multiple correlations on air-side heat transfer and friction characteristics of fin-and-tube heat exchangers with large number of large-diameter tube rows

Xie

Wang

Sundén

2009

Applied Thermal Engineering

144

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Section: Adoption Of Flow Modelmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Parametric study and multiple correlations on air-side heat transfer and friction characteristics of fin-and-tube heat exchangers with large number of large-diameter tube rows

Xie

Wang

Sundén

2009

Applied Thermal Engineering

144

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“…Flat tubes seem to have more appropriate pressure drop characteristics than circular tubes [7]. The forced convection heat transfer over a bundle of circular cylinders was investigated numerically [8][9][10][11] and non-square tubes in both in-line and staggered tube arrangements [12][13][14][15][16]. The flow over a bank of elliptical cylinder tubes was presented by Yianneskis et al [17], both numerically and experimentally.…”

Section: Introductionmentioning

confidence: 99%

Heat Transfer and Pressure Drop Prediction in an in-Line Flat Tube Bundle by Radial Basis Function Network

Tahseen

Rahman²

2014

Int. J. Automot. Mech. Eng.

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This paper aims to predict the heat transfer and pressure drop for an in-line flat tubes configuration in a cross-flow using an artificial neural network. The numerical study of a two-dimensional steady state and incompressible laminar flow for an in-line flat tube configuration in a cross-flow is also considered in this study. The Reynolds number varies from 10 to 320. Heat transfer coefficient and pressure drop results are presented for tube configurations at three transverse pitches of 2.5, 3.0, and 4.5 with two longitudinal pitches of 3.0 and 6.0. The predicted results for the average Nusselt number and dimensionless pressure show good agreement with previous work. The accuracy between the actual values and the neural network approach model results was obtained with a mean absolute relative error less than 4.1%, 4.8%, and 3.8% for the average Nusselt number, dimensionless pressure drop and average friction factor, respectively.

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“…Due to the complicated flow structure between the fins, 3-D numerical studies tend to be difficult. Few researchers have reported 3-D modeling for plain-fin configuration in their numerical studies (Aslam Bhutta et al, 2012;Chiu & Jang, 2009;Jang, Wu, & Chang, 1996;Junqi et al, 2007;Kundu et al, 1991;Şahin et al, 2006;Tutar & Akkoca, 2004). Most of these study has been conducted around the laminar to transitional flow range.…”

Section: Introductionmentioning

confidence: 99%

Plate Fin and Tube Heat Exchanger Modeling: Effects of Performance Parameters for Turbulent Flow Regime

Amin¹,

Karim²,

Islam³

2014

Int J Automot Mech Eng

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In the current study, the air-side turbulent thermal and hydraulic characteristics of finned tube heat exchanger of staggered tube arrangement are simulated with steadystate solvers using ANSYS CFX12.0, a Commercial CFD code for turbulent flow regimes. The k-ω model was used to predict the turbulent flow characteristics through the finned tube heat exchanger. The level of confidence of this numerical model was based on a comparison with previous experimental data from the literature, comparing the friction factor f and Colburn factor j, and reasonable agreement is found between the simulations and experimental data. Detailed analysis of the effect of thermal and hydraulic performance of related parameters such as longitudinal pitch, transverse pitch, and fin pitch are also critically evaluated for turbulent flow regime. The increase in the longitudinal pitch and transverse pitch causes a decrease in the heat transfer and pressure drop performance as the flow becomes free and less compact with the increase in the tube pitch. The effect of fin pitch on the heat exchanger performance demonstrates that a decrease in the fin pitch shows the opposite performance to that of the longitudinal and transverse pitches.

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Numerical and experimental studies of threedimensional plate-fin and tube heat exchangers

Cited by 129 publications

References 12 publications

Parametric study and multiple correlations on air-side heat transfer and friction characteristics of fin-and-tube heat exchangers with large number of large-diameter tube rows

Parametric study and multiple correlations on air-side heat transfer and friction characteristics of fin-and-tube heat exchangers with large number of large-diameter tube rows

Heat Transfer and Pressure Drop Prediction in an in-Line Flat Tube Bundle by Radial Basis Function Network

Plate Fin and Tube Heat Exchanger Modeling: Effects of Performance Parameters for Turbulent Flow Regime

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