Simulation of a parabolic trough solar collector containing hybrid nanofluid and equipped with compound turbulator to evaluate exergy efficacy and thermal‐hydraulic performance

Khetib, Yacine; Alahmadi, Ahmad Aziz; Alzaed, Ali; Sharifpur, Mohsen; Cheraghian, Goshtasp; Siakachoma, Cornelius

doi:10.1002/ese3.975

Cited by 10 publications

(4 citation statements)

References 66 publications

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“…In equation (2), the Lorentz force is represented by the terms    J and B , where  J is [35]: The following equations are used to estimate the hybrid nanofluid's specific heat capacity, viscosity, density, electrical conductivity, and thermal conductivity [31][32][33]:…”

Section: Equationsmentioning

confidence: 99%

Investigation into the effects of hydrophobicity on thermohydraulic characteristics and entropy generation of hybrid nanofluid with the magnetic property in a micro-heat sink under a magnetic field

et al. 2023

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The cooling process of the devices is a big challenge in the electronic industry, and most of the process units (graphical are central) experience defects under harsh temperature conditions, so dissipating generated heat under various working conditions should seriously be studied. This study investigates the magnetohydrodynamics of hybrid-ferro nanofluids in the presence of hydrophobic surfaces in a micro-heat sink. To scrutinize this study, a Finite Volume Method (FVM is applied. The ferro nanofluid includes water as base fluid and Multiwall Carbon Nanotubes (MWCNTs) and Fe3O4 as nano-additives, which are used in three concentrations (0, 1 and 3%). The other parameters such as Reynold number (5-120), Hartmann number (magnitude of the magnetic field from 0 to 6) and hydrophobicity of surfaces are considered to be scrutinized for their impacts on heat transfer and hydraulic variables as well as entropy generation ones. The outcomes indicate that increasing the level of hydrophobicity in surfaces leads to improve heat exchange and reduces the pressure drop simultaneously. Likewise, it decreases the frictional and thermal types of entropy generations. Intensifying the magnitude of the magnetic field enhances the heat exchange as much as the pressure drop. In the same result, it can decrease the thermal term in entropy generation equations for the fluid, but it increases the frictional one and adds a new term named magnetic entropy generation. Incrementing Reynolds number improves the convection heat transfer parameters although it intensifies the pressure drop in the length of the channel. Also, the thermal and frictional kinds of entropy generation decrease and increase with increasing the flow rate (Reynold number).

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Section: Equationsmentioning

confidence: 99%

Investigation into the effects of hydrophobicity on thermohydraulic characteristics and entropy generation of hybrid nanofluid with the magnetic property in a micro-heat sink under a magnetic field

et al. 2023

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“…In Equation (26), n and i are collector lifetime and interest rates which are 20 years and 6%, respectively.…”

Section: Mathematical Formulationmentioning

confidence: 99%

“…In addition, the NSGA-II method has been applied to optimize for two different problems: first, to maximize energy and exergy efficiency and minimize costs and second, to reduce emissions and EE&EW consumption. To the best of our knowledge, although there are many 4E assessments and optimization of PTCs in the literature, 26,27 this is the first study in the field of DAPTCs optimization aimed to reach the above objectives.…”

Section: Introductionmentioning

confidence: 99%

Multi‐objective assessment of a DAPTC based on 4E analysis: Water‐energy‐environment nexus

Saray

Heyhat

2022

Intl J of Energy Research

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Summary This study aims to thermodynamic analysis and optimizes the performance of a nanofluid‐based direct absorption parabolic trough collector (DAPTC) using a non‐dominated sorting genetic algorithm (NSGA‐II). For this purpose, silicon carbide (SiC) and copper oxide (CuO) at three different volume fractions (0.01%, 0.05%, and 0.1%) are used as the nanoparticles and water as the base fluid. The results obtained using the method presented in the current study are verified through experimental results, which are in good agreement with those. A comprehensive analysis is conducted to determine the effect of operating conditions and geometric dimensions on the energy and exergy efficiencies and economic performance of the DAPTC. In addition, an environmental investigation is performed to determine the effect of using nanofluids on CO2, NOx, and SOx reduction. Under the operating conditions, the cost of energy production, when SiC/water and CuO/water nanofluids are utilized instead of the base fluid, is reduced by 31.08% and 47.92%, respectively. The use of SiC/water and CuO/water nanofluids can reduce CO2 emissions by 216.18 and 332.55 kg and also water consumption by 968.1 and 1489.1 m3, respectively. The optimum energy and exergy efficiencies are 65.53% and 38.97%, respectively. Also, the SiC/water and CuO/water nanofluids have a 35% and 67.35% environmental impact, respectively. Highlights Multi‐objective optimization of a DAPTC using the NSGA‐II algorithm. The energy, exergy, economic, and environment of solar collectors were analyzed. The 547.86 MJ energy and 1489.1 m3 water were saved by the exploitation of CuO/water nanofluid. The 316.15 MJ energy and 968.1 m3 water were saved by the exploitation of SiC/water nanofluid. CO2 emissions decreased by 332.55 and 216.18 kg using CuO/water and SiC/water.

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“…Kalbande et al 12 tried to achieve a temperature above 200°C by investigating the storage system of oil-based thermal energy having potential design. Khetib et al 13 employed magneto-hybrid nanofluid-filled PTSCs to check their analytical model regarding thermal-hydraulic as well as energy efficiency. Tavoosi et al 14 introduced a reference model, based on recurrent type-2 fuzzy RBFN, that was adaptive to a control system having many uncertainties.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulations of Environmental Energy Features in Solar Pump Application by Using Hybrid Nanofluid Flow: Prandtl-Eyring Case

Jamshed

Safdar

Brahmia

et al. 2022

Energy & Environment

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As the primary energy source derived from the sun, solar energy is widely utilized in various technologies, including photovoltaic cells as well as the solar types of energy plates, street lights, and water pumping. This era is about studying solar radiations and a way to active enhancements in solar power pump (SWP) efficacy with the use of solar radiations and nanotechnology. Communication is structured to examine the capability of SWP in terms of transfer of heat using a hybrid nanofluid passing through a parabolic trough surface collector (PTSC) placed inside the pipeline of SWP. Solar radiation has been considered a heat source. The performance in terms of heat transfer of the SWP is scrutinized for various effects like porous media, viscous dissipation, radiative heat flux, and Cattaneo–Christov heat flux (C–CHF). Entropy generation analysis is also conducted for Prandtl – Eyring fluid (P-EF). The simulated momentum and energy equations were solved using the Keller box technique, which is a well-known numerical approach. For this work, Prandtl – Eyring hybrid nanofluid (P-EHNF) has been considered, consisting of double diverse kinds of nanotubes (NT), including single-walled carbon nanotubes (SWCNT) and multi-walled carbon nanotubes (MWCNT) in the rich, viscous fluid of kind Sodium Alginate (SA). The impact of various parameters on velocity, temperature fields, shear stress, coefficient of drag force, and Nusselt number are investigated and demonstrated in graphs and tables. The SWP experience an enhancement in the transfer of heat for amplification of the parameters of thermal radiative flow as well as viscous dissipation. In comparison with conventional nanofluid, hybrid nanofluid performs better in heat transmission. The thermal efficacy of MWCNT/SWCNT-SA over SWCNT-SA got down to a minimal level of 39.9% and peaked at 42.2%.

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Simulation of a parabolic trough solar collector containing hybrid nanofluid and equipped with compound turbulator to evaluate exergy efficacy and thermal‐hydraulic performance

Cited by 10 publications

References 66 publications

Investigation into the effects of hydrophobicity on thermohydraulic characteristics and entropy generation of hybrid nanofluid with the magnetic property in a micro-heat sink under a magnetic field

Investigation into the effects of hydrophobicity on thermohydraulic characteristics and entropy generation of hybrid nanofluid with the magnetic property in a micro-heat sink under a magnetic field

Multi‐objective assessment of a DAPTC based on 4E analysis: Water‐energy‐environment nexus

Numerical Simulations of Environmental Energy Features in Solar Pump Application by Using Hybrid Nanofluid Flow: Prandtl-Eyring Case

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