Experiments on elliptic sections in one- and two-row arrangements of plate fin and tube heat exchangers

Saboya, Sergio Mourao; Saboya, F. E. M.

doi:10.1016/s0894-1777(00)00059-5

Cited by 76 publications

(32 citation statements)

References 12 publications

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“…Wang et al [13] developed correlations of the Colburn and friction factors which are valid for plate fin and tube heat exchangers. Saboya and Saboya [14] determined the average heat transfer coefficient for plate fin and elliptic tube heat exchangers by using naphthalene sublimation technique. The same sublimation technique is used for plate fin heat exchangers with circular tubes by Kim and Song [15].…”

Section: Introductionmentioning

confidence: 99%

Effect of geometrical parameters on heat transfer and pressure drop characteristics of plate fin and tube heat exchangers

Erek

Özerdem

Bilir

et al. 2005

Applied Thermal Engineering

101

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In this study, the influences of the changes in fin geometry on heat transfer and pressure drop of a plate fin and tube heat exchanger are investigated, numerically. A computational fluid dynamics (CFD) program called Fluent is used in the analysis. The segment of one tenth of fin is used in the modeling, due to symmetrical condition. The results of heat transfer, static, and total pressure drop values of ten different fins are tabulated and the normalized values of them are, also, given for the comparison of the models. The distance between fins is found to have a considerable effect on pressure drop. It is observed that placing the fin tube at downstream region affects heat transfer positively. Another important result of the study is that increasing ellipticity of the fin tube increases the heat transfer while it, also, results in an important reduction in pressure drop.

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Section: Introductionmentioning

confidence: 99%

Effect of geometrical parameters on heat transfer and pressure drop characteristics of plate fin and tube heat exchangers

Erek

Özerdem

Bilir

et al. 2005

Applied Thermal Engineering

101

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“…Mass transfer experiments were performed using the naphthalene sublimation technique. They showed that the performance advantage of the elliptical tube arrangements resulted from the higher fin efficiency [6]. Lyman et al conducted experiments in a number of large-scale louver models with varied fin pitch and louver angle over a range of Reynolds numbers [3].…”

Section: Introductionmentioning

confidence: 99%

Fin-tube heat exchanger performance for different louver angles

Wais

2014

ZN PRz Mechanika

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To choose the proper design for a heat exchanger in engineering industry and to evaluate the finned surface performance it is important to calculate fin efficiency. The heat transfer conditions, in tube-fin heat exchangers, can be modified for instance by changing the fin shapes. The angle of louver inclination affects the fluid flow direction and it has the effect on the heat transfer and temperature changes. In the paper, the heat transfer is estimated numerically for fins with and without louvers to choose the optimal louver angle in the car radiator. Numerical analyses are carried out to examine finned tube heat exchanger and to determine the performance of the radiator for eight different louver angles. Solutions are obtained by means of ANSYS program. The tube material is kept fixed as well as the heat exchanger fin and tube pitches (spacing) and the inlet air velocity.

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“…Mendez et al [3] performed a numerical and experimental investigation about the influence of the fin spacing on heat transfer and pressure drop values of a plate fin and circular tube heat exchanger. Saboya and Saboya [4] used naphthalene sublimation technique to calculate the average convective heat transfer coefficient for a plate fin and elliptic tube heat exchanger. They reported that elliptical tubes provide better overall performance than circular ones.…”

Section: Introductionmentioning

confidence: 99%