Stability Analysis of Boundary Layer Flow and Heat Transfer of Fe2O3 and Fe-Water Base Nanofluid οver a Stretching/Shrinking Sheet with Radiation Effect

Lanjwani, H. B.; Chandio, M. S.; Malik, K.; Shaikh, Muhammad Mujtaba

doi:10.48084/etasr.4649

Cited by 12 publications

(9 citation statements)

References 31 publications

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“…In fact, nanofluids have a favorable effect on the performance of the PTC. The heat transfer performance obtainable with nanofluids is known to surpass the performance of heat transfer liquids available today [20]. The most used nanofluids contain nanoparticles such as Al, Fe 2 O 3 , Al 2 O 3 , Cu, TiO 2 , and SiO 2 [21].…”

Section: Heat Transfer Enhancement and Optimizationmentioning

confidence: 99%

Heat Transfer Enhancement in a Receiver Tube of Solar Collector Using Various Materials and Nanofluids

Guerraiche

Guerraiche²,

Driss³

et al. 2022

Eng. Technol. Appl. Sci. Res.

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The solar flux distribution on the Parabolic Trough Collector (PTC) absorber tube is extremely non-uniform, which causes non-uniform temperature distribution outside the absorber tube. Therefore, it generates high thermal stress which causes creep and fatigue damage. This presents a challenge to the efficiency and reliability of parabolic trough receivers. To override this problem, we have to homogenize the heat flux distribution and enhance the heat transfer in the receiver’s absorber tube to improve the performance of the PTC. In this work, 3D thermal and thermal stress analyses of PTC receiver performance were investigated with a combination of Monte Carlo Ray-Trace (MCRT), Computational Fluid Dynamics (CFD) analysis, and thermal stress analysis using the static structural module of ANSYS. At first, we studied the effect of the receiver tube material (aluminium, copper, and stainless steel) on heat transfer. The temperature gradients and the thermal stresses were compared. Second, we studied the effect of the addition of nanoparticles on the working Heat Transfer Fluid (HTF), employing an Al2O3-H2O based nanofluid at various volume concentrations. To improve the thermal performance of the PTC, a nanoparticle volume concentration ratio of 1%–6% is required. The results show that the temperature gradients and thermal stresses of stainless steel are significantly higher than those of aluminium and copper. From the standpoint of thermal stress, copper is recommended as the tube receiver material. Using Al2O3 in water as an HTF increases the average output temperature by 2%, 6%, and 10% under volume concentrations of 0%, 2%, and 6% respectively. The study concluded that the thermal efficiency increases from 3% to 14% for nanoparticle volume fractions ranging from 2% to 6%.

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Section: Heat Transfer Enhancement and Optimizationmentioning

confidence: 99%

Heat Transfer Enhancement in a Receiver Tube of Solar Collector Using Various Materials and Nanofluids

Guerraiche

Guerraiche²,

Driss³

et al. 2022

Eng. Technol. Appl. Sci. Res.

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“…They considered water is used as a base fluid whilst three exceptional nanoparticles, specifically zinc, copper, and silver are viewed for this investigation. Lanjwani et al 33 discussed the stability of BLF and heat transferred over shrinking domain. Thommaandru et al 34 analyzed BLF of non-newtonian liquid with different parametric stages over a surface.…”

Section: Introductionmentioning

confidence: 99%

Heat transport mechanism in glycerin-titania nanofluid over a permeable slanted surface by considering nanoparticles aggregation and Cattaneo Christov thermal flux

et al. 2023

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Applications: The dynamics of superior heat transport fluids are of much interest and dominant over traditional fluids. Applications of such fluids can be found in advanced medical sciences, to maintain the building temperature, environmental sciences, chemical engineering, food engineering, and other applied research areas where enhanced heat transfer is required. Aim and Research Methodology: The major aim of this research is to report the thermal performance of the Glycerin-titania nanofluid using a thermal conductivity model comprising the effects of nanoparticles aggregation, and CCTF over a permeable slanted surface. The enhanced heat transport model was then analyzed numerically via RK scheme and furnished the outcomes with graphical aid under the variations of physical parameters. Core Findings: It is examined that the addition of CCTF (A1) in the model potentially contributes to thermal performance of aggregated nanofluid. The temperature [Formula: see text] enhances for injecting fluid from the surface and reduces due to strong suction. Further, the fluid particles attained maximum velocity for [Formula: see text] at the surface and it shows asymptotic behavior far from the working domain.

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“…2 Many researchers have worked on nanofluids from different points of views on different surfaces. 3–5…”

Section: Introductionmentioning

confidence: 99%

“…2 Many researchers have worked on nanofluids from different points of views on different surfaces. [3][4][5] Hybrid Nanofluids (HNF) are the most updated version of the nanofluids, where more than one types of nano-sized particles are dispersed into the pure working base fluid. Sulochana and Aparna 6 have explored how unsteady flow of hybrid liquids on an enlarging surface is affected by Brownian motion and thermophoresis.…”

Section: Introductionmentioning

confidence: 99%

Thermal analysis for hydromagnetic flow of Darcy-Forchheimer hybrid nanofluid with velocity and temperature slip effects: Scrutinization of stability and dual solutions

Memon,

Jacob,

Lanjwani

et al. 2023

Advances in Mechanical Engineering

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This article explores heat transfer characteristics of magnetohydrodynamics water-base silver (Ag) and iron oxide (Fe3O4) hybrid nanomaterials flow in a Darcy-Forchheimer porous medium induced by a stretching/shrinking surface with impacts of heat sink/source. Moreover, thermal radiation effects and the slip boundary conditions are also incorporated in the given problem. Governing partial differential equations (PDEs) are first altered into the ordinary differential equations (ODEs) using suitable similarity transformations. These achieved ODEs are solved by the well-known shooting technique in Maple software to get the required numerical solutions for the variation in different physical parameters. Here, the numerical findings show duality in solutions in case of stretching/shrinking parameter over different ranges of the comprised distinguished parameters. In this regard, the stability analysis is done and the first solution is found stable and physically acceptable, while the second one unstable and physically infeasible. Besides, the skin friction increases for the case of shrinking but it decreases for case of stretching parameter due to the greater impacts of the mass transfer parameter while the heat transfer phenomenon upsurges for the case of shrinking parameter. Moreover, the skin friction, and the heat transfer rise with variation of the suction parameters when the quantity of solid nanoparticles volume fraction is increased.

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Stability Analysis of Boundary Layer Flow and Heat Transfer of Fe2O3 and Fe-Water Base Nanofluid οver a Stretching/Shrinking Sheet with Radiation Effect

Cited by 12 publications

References 31 publications

Heat Transfer Enhancement in a Receiver Tube of Solar Collector Using Various Materials and Nanofluids

Heat Transfer Enhancement in a Receiver Tube of Solar Collector Using Various Materials and Nanofluids

Heat transport mechanism in glycerin-titania nanofluid over a permeable slanted surface by considering nanoparticles aggregation and Cattaneo Christov thermal flux

Thermal analysis for hydromagnetic flow of Darcy-Forchheimer hybrid nanofluid with velocity and temperature slip effects: Scrutinization of stability and dual solutions

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