Thermal-hydraulic CFD study in louvered fin-and-flat-tube heat exchangers

Perrotin, Thomas; Clodic, Denis

doi:10.1016/j.ijrefrig.2003.11.005

Cited by 86 publications

(40 citation statements)

References 13 publications

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“…The number of louvers is the third important optimum design parameter. The advantage of louver fins is to disturb the boundary layer [9,10], which reduce the heat transfer resistance of air side. Selecting a suited number of louvers is necessary in optimum design process of a heat exchanger.…”

Section: Resultsmentioning

confidence: 99%

“…The numerical results were in a good agreement with the experimental data at low Reynolds numbers. Perrotin and Clodic [10] compared CFD calculations with experimental results and correlations of the literature matching the fin design and the flow conditions at different air frontal velocities. They presented the information that 2D models with uniformly constant fin temperature overestimate significantly in the heat transfer coefficient prediction.…”

Section: Introductionmentioning

confidence: 99%

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Parametric study on the performance of a heat exchanger with corrugated louvered fins

Chen

Zhi-jiu

2007

Applied Thermal Engineering

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Parametric study on the performance of a heat exchanger with corrugated louvered fins

Chen

Zhi-jiu

2007

Applied Thermal Engineering

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“…They conducted a two-dimensional, time-dependent study and reported that the instability noticed at the end louver moves upstream as the Reynolds number is increased. Perrotin and Clodic [26] performed a numerical study along with a small set of experiments. They also conducted a two-dimensional study to understand the turbulence in the louvered fin flat tube geometry with the increase in Reynolds number.…”

Section: Introductionmentioning

confidence: 99%

CFD Analysis on the Air-Side Thermal-Hydraulic Performance of Multi-Louvered Fin Heat Exchangers at Low Reynolds Numbers

Saleem

Kim

2017

Energies

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Abstract:The air-side thermal-hydraulic performance of multi-louvered aluminium fin heat exchangers is investigated. A systematic numerical study has been performed to analyze the air-sde thermal hydraulic characteristics over a wide range of Reynolds number i.e., from 30 to 500. Air-side heat transfer coefficient and pressure drop were calculated and validated over the mentioned band of Reynolds numbers. The critical Reynolds number was determined numerically; and also the variation of flow pattern along with the air-side heat transfer coefficient and pressure drop in a multi-louvered heat exchanger associated with Re cri has been reported. Moreover, a parametric study of the multi-louvered aluminium fin heat exchangers was also performed for 36 heat exchanger configurations with the louver angles (19-31 • ); fin pitches (1.0, 1.2, 1.4 mm) and flow depths (16, 20, 24 mm); and the geometric configuration exhibiting the highest air-side heat transfer coefficient was reported. The air-side heat transfer coefficient and pressure drop results for different geometrical configurations were presented in terms of Colburn j factor and Fanning friction factor f ; as a function of Reynolds number based on louver pitch.

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“…They conducted two-dimensional, time-dependent study and reported that the instability noticed at the end louver moves upstream as the Reynolds number is increased. Perrotin and Clodic [26] performed numerical study along with a small set of experiments. They also conducted two-dimensional study to understand the turbulence in the louvered fin flat tube geometry with the increase in Reynolds number.…”

Section: Introductionmentioning

confidence: 99%

CFD Analysis on the Air-Side Thermal-Hydraulic Performance of Multi-Louvered Fin Heat Exchangers at Low Reynolds Numbers

Saleem¹,

Kim²

2017

Preprint

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Abstract:The air side thermal hydraulic performance of multi-louvered aluminium fin heat exchangers is investigated. A detailed study was performed to analyse the thermal performance of air over a wide range of Reynolds number i.e. from 30 to 500. Air-side heat transfer coefficient and air pressure drop were calculated and validated over the mentioned band of Reynolds numbers. Critical Reynolds number was determined numerically and the variation in flow physics along with the thermal and hydraulic performance of microchannel heat exchanger associated with has been reported. Moreover, a parametric study of the multi-louvered aluminium fin heat exchangers was also performed for 36 heat exchanger configurations with the louver angles (19-31°), fin pitches (1.0, 1.2, 1.4 mm) and flow depths (16, 20, 24 mm); and the geometric configuration exhibiting the highest thermal performance was reported. The air-side heat transfer coefficient and pressure drop results for different geometrical configurations were presented in terms of Colburn j factor and Fanning friction factor f, as a function of Reynolds number based on louver pitch.

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Thermal-hydraulic CFD study in louvered fin-and-flat-tube heat exchangers

Cited by 86 publications

References 13 publications

Parametric study on the performance of a heat exchanger with corrugated louvered fins

Parametric study on the performance of a heat exchanger with corrugated louvered fins

CFD Analysis on the Air-Side Thermal-Hydraulic Performance of Multi-Louvered Fin Heat Exchangers at Low Reynolds Numbers

CFD Analysis on the Air-Side Thermal-Hydraulic Performance of Multi-Louvered Fin Heat Exchangers at Low Reynolds Numbers

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