Computational Fluid Dynamics Based Approach for Predicting Heat Transfer and Flow Characteristics of Inline Tube Banks with Large Transverse Spacing

Niemelä, Niko; Mikkonen, Antti; Lampio, Kaj; Konttinen, Jukka

doi:10.1080/01457632.2019.1699294

Cited by 4 publications

(3 citation statements)

References 20 publications

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“…The influence of domain size on URANS results was explored by Niemela et al [29]. They discovered that the mean Nusselt number predicted for a large domain of 144 tubes is similar to that predicted by a periodic domain of five tubes.…”

Section: Acronymsmentioning

confidence: 99%

A comparative study on thermo-fluid characteristics of free and wall-bounded cross-flow heat exchangers

Moosavi

Ljung

Lundström

2023

Thermal Science and Engineering Progress

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Section: Acronymsmentioning

confidence: 99%

A comparative study on thermo-fluid characteristics of free and wall-bounded cross-flow heat exchangers

Moosavi

Ljung

Lundström

2023

Thermal Science and Engineering Progress

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“…Flows around tube bundles with a large number of tubes, on the other hand, have been the subject of a great deal of experimental and numerical efforts. The in-line [7,8], staggered [9][10][11], rotating square [12], regular triangle [13,14], and parallel triangle [15] are a few of the array designs that were investigated by researchers. The worldwide waste heat recovery market is being boosted by thermal industries such as petrochemical plants.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on The Performance of One-Directional and Bi-Directional Flow Conditions Across In-Line Tube Banks Heat Exchanger

Hasbullah

Saat

Anuar

et al. 2022

ARFMTS

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The one-directional flow condition and the bi-directional flow condition are two flow conditions that can be found in many energy systems depending on the nature of the flow and the working mechanism of the system. This paper reports the differences in heat transfer performance for an in-line tube banks heat exchanger that is placed in the one-directional and the bi-directional flow conditions. The experiments involve the use of a blower as a flow inducer for one-directional flow while a loudspeaker with a constant frequency of 14.2 Hz is used as a flow inducer for bi-directional flow condition. A quarter wavelength resonator with 4 mm wall thickness and a length of 6600 mm was used in the investigation. The results of velocity and temperature were recorded using a hotwire anemometer and a type-K thermocouple, respectively. Results show that the behaviour of velocity and temperature in one-directional and the bi-directional flow conditions over an in-line heated tube banks are different with a maximum difference of 52 % for velocity and 79 % for temperature.

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“…The main contribution is a unique formula for a wide range of the Reynolds numbers, while the Žukauskas correlations are divided into the Reynolds number subintervals. Niemelä et al [31] created the CFD model by comparing different boundary conditions, domain dimensions, and turbulence models for unsteady simulations of the inline tube banks. The correlation of Gnielinski is recommended for the tube banks with large transverse spacing as it agrees, within ±13%, with the numerically obtained values.…”

Section: Introductionmentioning

confidence: 99%

Determination of the Reference Temperature for a Convective Heat Transfer Coefficient in a Heated Tube Bank

Kotšmíd

Brodnianská

2021

Applied Sciences

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The paper presents a theoretical analysis of heat transfer in a heated tube bank, based on the Nusselt number computation as one of the basic dimensionless criteria. To compute the Nusselt number based on the heat transfer coefficient, the reference temperature must be determined. Despite the value significance, the quantity has several different formulations, which leads to discrepancies in results. This paper investigates the heat transfer of the inline and staggered tube banks, made up of 20 rows, at a constant tube diameter and longitudinal and transverse pitch. Both laminar and turbulent flows up to Re = 10,000 are considered, and the effect of gravity is included as well. Several locations for the reference temperature are taken into consideration on the basis of the heretofore published research, and the results in terms of the overall Nusselt number are compared with those obtained by the experimental correlations. This paper provides the most suitable variant for a unique reference temperature, in terms of a constant value for all tube angles, and the Reynolds number ranges of 100–1000 and 1000–10,000 which are in good agreement with the most frequently used correlating equations.

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Computational Fluid Dynamics Based Approach for Predicting Heat Transfer and Flow Characteristics of Inline Tube Banks with Large Transverse Spacing

Cited by 4 publications

References 20 publications

A comparative study on thermo-fluid characteristics of free and wall-bounded cross-flow heat exchangers

A comparative study on thermo-fluid characteristics of free and wall-bounded cross-flow heat exchangers

Experimental Study on The Performance of One-Directional and Bi-Directional Flow Conditions Across In-Line Tube Banks Heat Exchanger

Determination of the Reference Temperature for a Convective Heat Transfer Coefficient in a Heated Tube Bank

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