Numerical and experimental investigations of heat transfer performance of rectangular coil heat exchangers

Conté, I.; Peng, Xiaofeng

doi:10.1016/j.applthermaleng.2008.08.013

Cited by 20 publications

(15 citation statements)

References 20 publications

(25 reference statements)

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“…(1) c u exponent in Eqs. (2) and (4) [10]. The proposed dynamic model had no more than six characteristic parameters and it could be applied for intelligent auto-tuning dynamic control.…”

Section: Introductionmentioning

confidence: 99%

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Empirical component model to predict the overall performance of heating coils: Calibrations and tests based on manufacturer catalogue data

Ruivo¹,

Angrisani²

2015

Energy Conversion and Management

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“…(1) c u exponent in Eqs. (2) and (4) [10]. The proposed dynamic model had no more than six characteristic parameters and it could be applied for intelligent auto-tuning dynamic control.…”

Section: Introductionmentioning

confidence: 99%

“…Numerical models of heat exchangers based on CFD approaches [1,2] are powerful in predicting the phenomena and therefore useful in providing important guidelines to be considered in product optimization by the manufacturers. These models are rather complex due to the need of solving the differential governing conservation equations.…”

Section: Introductionmentioning

confidence: 99%

Empirical component model to predict the overall performance of heating coils: Calibrations and tests based on manufacturer catalogue data

Ruivo¹,

Angrisani²

2015

Energy Conversion and Management

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“…A large number of investigations [17][18][19][20][21][22][23][24][25][26] on the flow and heat transfer in tube banks and finned tube by means of either experiments or numerical computations have been carried out. Beale [17] conducted a detailed numerical study of fluid flow and heat transfer in tube banks.…”

Section: Introductionmentioning

confidence: 99%

Numerical study on flow and heat transfer of high‐pressure syngas in membrane helical‐coil heat exchanger

Yang

Zhao

Liu

et al. 2011

Asia-Pacific J Chem Eng

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Numerical simulation was conducted to investigate the flow and heat transfer of high‐pressure synthesis gas (syngas) in an annular channel consisting of membrane helical coils. Effects of radial pitch, axial pitch, and inner helical coil diameter were considered. The numerical results are in a good agreement with our previous experimental results of heat transfer in membrane helical‐coil annular channels. The average heat transfer coefficient of the membrane helical coil decreases to a constant with the rise of radial pitch; meanwhile, it increases first and decreases afterwards with the increase of axial pitch. Although the local heat transfer coefficients of the inner and outer coil are irrelevant to the coil curvature, the average heat transfer coefficient of inner coil is higher than that of outer coil due to the lower finned ratio of inner coil. © 2011 Curtin University of Technology and John Wiley & Sons, Ltd.

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“…Conté & Peng detail the use of the SIMPLE algorithm to solve pressure-velocity coupling in their research on the performance of heat transfer in rectangular coil exchangers [5].…”

Section: Introductionmentioning

confidence: 99%

Comparison and validation of turbulence models in the numerical study of heat exchangers

2015

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This study aims to validate numerical models for heat exchangers developed with the commercial package ANSYS®, comparing the results with data published in the literature. The methodology was based on the identification of programs, languages, mathematical models, and numerical models used by other researchers. Geometries were developed with SolidEdge® and DesignModeler®, discretization meshes with Meshing®, and subsequent configuration of standard k-ɛ and k-ω models with Fluent® and CFX®. For internal flow in concentric smooth straight tube exchangers, we recreated the predicted results with Nusselts varying between 100 and 250 and Reynolds regimes between 12*10 3 and 38*10 3 . The study of internal flow in the curved corrugated tube exhibited considerable approximation to the results predicted by Zachar's numerical correlation with Nusselt numbers in the range of 15-70 for Dean variations between 1*10 2 and 11*10 2 in laminar flow. Likewise, we validated the study of external flow in twisted curved tubes. Finally, Nusselt variations between 60 and 275 for Dean variations between 1*10 3 and 9*10 3 were modeled for completely developed laminar, transitional, and turbulent flow. The study shows the increase of heat flux associated with the change in the geometry of heat exchangers. It also demonstrates how numerical computer models can recreate realistic process conditions and thermo-fluid simulation by appropriately configuring systems.

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Numerical and experimental investigations of heat transfer performance of rectangular coil heat exchangers

Cited by 20 publications

References 20 publications

Empirical component model to predict the overall performance of heating coils: Calibrations and tests based on manufacturer catalogue data

Empirical component model to predict the overall performance of heating coils: Calibrations and tests based on manufacturer catalogue data

Numerical study on flow and heat transfer of high‐pressure syngas in membrane helical‐coil heat exchanger

Comparison and validation of turbulence models in the numerical study of heat exchangers

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