A critical review on phase change materials (PCM) based heat exchanger: Different hybrid techniques for the enhancement

Journal of Energy Storage, Journal Year: 2023, Volume and Issue: 79, P. 109840 - 109840

Published: Dec. 22, 2023

Language: Английский

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Numerical analysis and RSM modeling of the effect of using a V-cut twisted tape turbulator in the absorber tube of a photovoltaic/thermal system on the energy and exergy performances of the system

Engineering Analysis with Boundary Elements, Journal Year: 2023, Volume and Issue: 155, P. 340 - 350

Published: June 21, 2023

Language: Английский

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Irreversibility treatment and colloidal suspension of gold and silver nanoparticles in a microchannel

Proceedings of the Institution of Mechanical Engineers Part E Journal of Process Mechanical Engineering, Journal Year: 2023, Volume and Issue: unknown

Published: Oct. 25, 2023

The silver and gold nanoparticles show noteworthy outcomes on anticancer therapies antimicrobials. was the noticeable anti-swelling efficiently helped to convert these photons by heat into demolished cancer cells. So, purpose of this work is devoted studying effect linear radiation hybrid (gold with hemoglobin) in a microchannel. This dimensionless numerical expression determined mathematically finite element method. second law study required predict sources irreversibility approximate that thermal system. Although comprehensive parametric analysis well-known production entropy may be enhanced viscous dissipation form. That established shows greater Bejan number related both hemoglobin nanofluid.

Language: Английский

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Experimental and numerical investigation of heat transfer and flow of water-based graphene oxide nanofluid in a double pipe heat exchanger using different artificial neural network models

International Communications in Heat and Mass Transfer, Journal Year: 2023, Volume and Issue: 148, P. 107002 - 107002

Published: Sept. 3, 2023

Language: Английский

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Recent progress on flat plate solar collectors equipped with nanofluid and turbulator: state of the art

Environmental Science and Pollution Research, Journal Year: 2023, Volume and Issue: 30(51), P. 109921 - 109954

Published: Oct. 4, 2023

Abstract This paper reviews the impacts of employing inserts, nanofluids, and their combinations on thermal performance flat plate solar collectors. The present work outlines new studies this specific kind collector. In particular, influential factors upon operation collectors with nanofluids are investigated. These include type nanoparticle, base fluid, volume fraction nanoparticles, efficiency. According to reports, most employed in Al 2 O 3 , CuO, TiO . Moreover, 62.34%, 16.88%, 11.26% utilized have fractions between 0 0.5%, 0.5 1%, 1 2%, respectively. twisted tape is widely various a share about one-third. Furthermore, highest achieved collectors’ efficiency turbulator 86.5%. review closed discussion recent analyses simultaneous use inserts works containing nanofluid turbulator, it has been determined that maximum 84.85% can be obtained from It also observed very few done combination two methods collector, more detailed still done, using diverse (both single hybrid types) turbulators efficient geometries.

Language: Английский

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Numerical Evaluation of the Impact of Using Spiral Innovative Turbulator on Improving the Thermal Performance of a Helical Double-Pipe Heat Exchanger

International Journal of Thermofluids, Journal Year: 2024, Volume and Issue: 24, P. 100830 - 100830

Published: Aug. 27, 2024

Language: Английский

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Application of nanofluids in heat exchangers - A state-of-the-art review

International Journal of Thermofluids, Journal Year: 2024, Volume and Issue: 24, P. 100945 - 100945

Published: Nov. 1, 2024

Language: Английский

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Thermal attributes of hybrid (MWCNT-NiZnFeO) nanofluid flow having motile microbes and activation energy: A computational approach

Case Studies in Thermal Engineering, Journal Year: 2023, Volume and Issue: 47, P. 103088 - 103088

Published: May 18, 2023

Hybrid nanofluids provide better thermal network, mechanical resistance, good aspect ratio and conductivity rather than usual/mono nanofluids. The hybrid nano-composition of multi-wall carbon nanotubes nickel zinc ferrites possesses superior properties embellished heat transfer characteristics. main concern, in this paper, is to examine the novel aspects water based pure nanofluid (MWCNTs) (MWCNTs-NiZnFe2O4). prominent effects viscous dissipation, motile gyrotactic microorganisms activation energy have also been taken into account. other study interpret flow features subject Darcy-Forchheimer medium. characteristics both usual case are covered analysis. governing model problem comprising coupled highly non-linear system equations treated numerically via a persuasive numerical technique named "Successive over Relaxation" method. A comparison not only validates code but found be correlation with earlier ones. It can deduced from outcomes present that higher levels Peclet number cause decrease density distribution microorganisms. For values Forchheimer parameter, lower will velocity fluid shear stress either, or hybrid,

Language: Английский

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Numerical Simulation of Turbulent Structure and Particle Deposition in a Three-Dimensional Heat Transfer Pipe with Corrugation

Energies, Journal Year: 2024, Volume and Issue: 17(2), P. 321 - 321

Published: Jan. 9, 2024

When colloidal particles are deposited in a heat transfer channel, they increase the flow resistance resulting substantial decrease efficiency. It is critical to have comprehensive understanding of particle properties channels for practical engineering applications. This study employed Reynolds stress model (RSM) and discrete (DPM) simulate deposition 3D corrugated rough-walled channel. The turbulent diffusion was modeled with random walk (DRW). A user-defined function (UDF) created particle–wall contact, an improved bounce implemented. research focused on investigating secondary near wall, Q-value standards, kinetic energy distribution, through validation velocity tube modeling. analyzed impact airflow velocity, size, corrugation height, period findings suggest that use walls can significantly improve efficiency less than 20 μm size. Specifically, diameter 3 showed five times higher efficacy height 24 mm compared smooth surface.

Language: Английский

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Influences of optimizing the turbulator arrangement on the heat transfer and hydraulic characteristics of the tubular heat exchanger

International Journal of Thermal Sciences, Journal Year: 2023, Volume and Issue: 197, P. 108792 - 108792

Published: Nov. 23, 2023

Language: Английский

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