Single-phaseexperimental analysis of heat transfer in helically finned heat exchanger

Martínez, E.; Vicente, W.; Salinas, M.; Soto, G.

doi:10.1016/j.applthermaleng.2008.11.002

Cited by 17 publications

(4 citation statements)

References 4 publications

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“…Martinez et al [58] utilized LMTD to produce helical toothed. Fins Semi-empirical correlations, as presented in Equations ( 11) and ( 12 Fin density had no effect on j or heat transfer.…”

Section: 3spiral Finsmentioning

confidence: 99%

A review on the modification of circular fin and tube heat exchangers through new innovative fin shapes

2022

IJATEE

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Heat exchanger tubes with circular fins have been widely used in industrial and commercial applications over the past decade and are considered one of the major researcher's concerns in a range of engineering applications for their affordable cost and potential future to improve heat transfer. This review summarises the recently optimised circular fins (needle, trimmed, crimped, perforated) and how they affect heat transmission, the pressure generated and weight. Where varying fin-related parameters (fin height, fin material, the gap between fins, and number of fins) and flow-related parameters (inlet air velocity or manufacturing fin design) are aimed to optimise the performance in a different manner.In conclusion, designs of novel fin shapes remained a challenging field and demanded more studies to reinforce the existing papers to accomplish the optimum required performance.

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“…Martinez et al [58] utilized LMTD to produce helical toothed. Fins Semi-empirical correlations, as presented in Equations ( 11) and ( 12 Fin density had no effect on j or heat transfer.…”

Section: 3spiral Finsmentioning

confidence: 99%

A review on the modification of circular fin and tube heat exchangers through new innovative fin shapes

2022

IJATEE

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show abstract

“…Then, a method to calculate those boundary conditions must be developed in order to represent the finned tube bank as a single isolated finned tube module (figure 1). This methodology is based on integral models which have been validated experimentally [22] with precision higher than 90% for pressure and 95% for temperature. So, a numerical simulation of single isolated finned tube module in the fully developed flow with periodic boundary conditions is done.…”

Section: Methodsmentioning

confidence: 99%

“…So, a correct implementation of boundary conditions in order to represent adequately physical phenomena is essential. The numerical model is focused to the outside finned tube, because the gas phase dominates the heat transfer [22] and also the pressure drop is critical [22]. However, the effect of the internal fluid is considered by means of an average inside temperature in each finned tube.…”

Section: Numerical Simulationmentioning

confidence: 99%

Methodology to Calculate Boundary Conditions in a Single Isolated Helically Segmented Finned Tube Module

Martínez¹,

Vicente²,

Soto³

et al. 2012

Heat Transfer Phenomena and Applications

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“…These experimental studies were carried out for solid and serrated finned-tube bundles for different fin geometries. Martinez et al [13] conducted experimental investigations on helical serrated finned-tubes and proposed a methodology of designing these devices at an industrial scale. Naess [15] studied the heat transfer and pressure drop in different serrated-fin tube bundles for waste heat recovery applications.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigations for the optimization of serrated finned-tube heat exchangers

Lemouedda

Schmid

Franz

et al. 2011

Applied Thermal Engineering

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Helical serrated finned-tubes are well established in many thermal systems. This paper presents the results of numerical calculations carried out for the performance improvement of these devices. The work is divided into three main investigations conducted for Reynolds numbers between Re = 600 and 2600. The first investigation shows the effect of the fin serration, where a comparison between performances of finned tubes with and without fin serration is presented. Another main investigation is conducted on the effect of fin twisting of the outermost part of the fin on the performance of the serrated finned-tubes. Here, twisting angles considered are between β = 0• and 25• .The third investigation deals with the effect of the number of fin segments per period.

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Single-phaseexperimental analysis of heat transfer in helically finned heat exchanger

Cited by 17 publications

References 4 publications

A review on the modification of circular fin and tube heat exchangers through new innovative fin shapes

A review on the modification of circular fin and tube heat exchangers through new innovative fin shapes

Methodology to Calculate Boundary Conditions in a Single Isolated Helically Segmented Finned Tube Module

Numerical investigations for the optimization of serrated finned-tube heat exchangers

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