A numerical investigation on heat transfer enhancement and the flow characteristics in a new type plate heat exchanger using helical flow duct

El‐Said, Emad M.S.; Abdulaziz, Mohamed; Awad, M. M.

doi:10.1080/23311916.2017.1396638

Cited by 23 publications

(2 citation statements)

References 21 publications

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“…Because of limited energy sources and cost considerations, more attention has been paid to improving the performance of the HEX [45,46]. Thus, there is a significant demand to improve the thermal efficiency of the HEX, which managed to be employing and emerging various enhancement methods [47,48]. The most common HEX utilized in the factories is shell and tube heat exchanger (STHE).…”

Section: Introductionmentioning

confidence: 99%

Thermal Management of the Melting Process in a Latent Heat Triplex Tube Storage System Using Different Configurations of Frustum Tubes

Tiji

Al‐Azzawi²,

Mohammed

et al. 2022

Journal of Nanomaterials

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In this study, the energy charging mechanism is mathematically modeled to determine the impact of design modifications on the thermofluidic behavior of a phase change material (PCM) filled in a triplex tube containment geometry. The surface area of the middle tube, where the PCM is placed, is supported by single or multi-internal frustum tubes in vertical triplex tubes to increase the performance of the heating and cooling of the system. In addition to the ordinary straight triplex tubes, three more scenarios are considered: (1) changing the middle tube to the frustum tube, (2) changing the inner tube to the frustum tube, and (3) changing both the internal and central tubes to the frustum tubes. The impact of adopting the tube designs and gap width were studied. The outcomes reveal that the heat storage rates are increased for all frustum tube systems compared to the straight tube system. According to the results, the case of a gap width of 5 mm is the optimal one among the studied cases in terms of the melting time and the heat storage rate. Employing the frustum tube configuration with a 5-mm gap width would save the melting time by 25.6% and increase the rate of heat storage by 32.8% compared to the base case of straight tubes.

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Section: Introductionmentioning

confidence: 99%

Thermal Management of the Melting Process in a Latent Heat Triplex Tube Storage System Using Different Configurations of Frustum Tubes

Tiji

Al‐Azzawi²,

Mohammed

et al. 2022

Journal of Nanomaterials

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“…El-said et al [20] compares the results of a helical plate heat exchanger (HPHE) with a Reynolds range of 2000-7000 in hot fluid and 1400-7000 in cold fluid, as well as a passage radius of 0.24-1.31, obtaining that the efficiency varies from 0.1758 to 0.6756 in the established intervals. The error maintained is 13% compared to the experimental data, in addition, it affirms that all the parameters improve, except for the pressure, where there is a slight drop.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of a Helical Heat Exchanger for Wort Cooling in the Artisanal Beer Production Process

et al. 2020

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The objective of the present work is to study the behavior of a helical tube and shell heat exchanger, for the cooling of the wort in the process of making craft beer with cold water, through the methodology of computational fluid dynamics (CFD) by finite volume models for heat exchanger modeling. This by using the ANSYS Fluent software, which allows to understand the behavior of the fluid through equations that describe their movement and behavior, using numerical methods and computational techniques. In the mesh convergence, two methods were used, orthogonality and obliquity, with which it was confirmed that the meshing is ideal in the simulations that were carried out. For the simulation, the k-epsilon turbulence model and the energy model were used. Through various simulations, it was obtained that by varying the mass flow, better results are reducing the outlet temperature, with a variation of 15.16 °C, while varying the inlet temperature of the water, there is just a variation from 2.71 °C to 0.01 °C. Therefore, a significant improvement in the performance of the heat exchanger was found. In the same way, it was confirmed that the number of spikes in the heat exchanger is adequate, since the outlet temperature would not be reached with less spikes.

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Thermohydraulic characteristics of inline and staggered angular cut baffle inserts in the turbulent flow regime

Bhattacharyya

Benim

Pathak

et al. 2019

J Therm Anal Calorim

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A numerical investigation on heat transfer enhancement and the flow characteristics in a new type plate heat exchanger using helical flow duct

Cited by 23 publications

References 21 publications

Thermal Management of the Melting Process in a Latent Heat Triplex Tube Storage System Using Different Configurations of Frustum Tubes

Thermal Management of the Melting Process in a Latent Heat Triplex Tube Storage System Using Different Configurations of Frustum Tubes

Numerical Study of a Helical Heat Exchanger for Wort Cooling in the Artisanal Beer Production Process

Thermohydraulic characteristics of inline and staggered angular cut baffle inserts in the turbulent flow regime

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