Study on the novel suppression of heat transfer deterioration of supercritical water flowing in vertical tube through the suspension of alumina nanoparticles

Khan, Shahid Ali; Eze, Chika Michael; Lau, Kwun Ting; Ali, Bagh; Ahmad, Shakeel; Ni, Song; Zhao, Jiyun

doi:10.1016/j.icheatmasstransfer.2022.105893

Cited by 28 publications

(4 citation statements)

References 40 publications

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“…The morphological influence of hybrid nanofluids due to the scattering of polymer material was studied by Qureshi et al [9]. Research related to the practical applications of hybrid nanofluids are discussed in [10,12]. The investigation of flow and heat transfer across a stretched surface in a quiescent fluid medium has garnered interest because solutions to this problem are used in many industrial processes, including metal extrusion, crystal growth, casting, production of glass fiber, and paper manufacture.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic irreversibility analysis of water conveying argentum and titania nanoparticles subject to inclined stretching surface

Sarfraz¹,

Khan²

2023

Phys. Scr.

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Hybrid nanofluids deliberately improve the characteristics of heat transmission and pressure drop in comparison to conventional nanofluids. The current study aims to inspect the energy transport and thermodynamic irreversibility effects of the buoyancy induced hybrid nanofluid flow. The mixture contains titania and argentum/silver nanoparticles over a vertically inclined stretching surface. The effects of heat generation and absorption, buoyancy and Lorentz force are added as well. The fact that nanoparticles have higher thermal and electrical conductivities means that this study can also be used for applications involving energy storage and catalytic supports. The problem is solved via bvp4c, a built-in technique in MATLAB. The similarity ansatzes are used to develop a system of ordinary differential equations. A comparison of current results with the existing ones in literature are also found to be in exact agreement. The asymptotic behavior for low and high magnetic number is determined. The nanoparticles concentration enhanced the flow field and temperature distribution; however, it reduced the entropy generation phenomenon and pressure field, causing pressure drop. The numerical and asymptotic values (for low magnetic number) of heat transfer rate and coefficients of skin frictions of free convective flow are declined due to increment in Prandtl number.

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Section: Introductionmentioning

confidence: 99%

Thermodynamic irreversibility analysis of water conveying argentum and titania nanoparticles subject to inclined stretching surface

Sarfraz¹,

Khan²

2023

Phys. Scr.

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“…The mono/hybrid nanofluids dynamics, subject to magnetic field, activation energy, and a binary chemical reaction using the porous surfaces, is presented by Raza et al [19]. The heat transfer deterioration of supercritical water flowing in a vertical tube through the suspension of alumina nanoparticles is discussed by Khan et al [20]. Coriolis force effects on the dynamics of an MHD rotating fluid are presented by Lou et al [21].…”

Section: Introductionmentioning

confidence: 99%

Designing Hyperbolic Tangent Sigmoid Function for Solving the Williamson Nanofluid Model

Souayeh

Sabir

2023

Fractal Fract

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This study shows the design of the novel hyperbolic tangent sigmoid function for the numerical treatment of the Williamson nanofluid model (WNM), which is categorized as velocity, concentration, and temperature. A process of a deep neural network using fifteen and thirty neurons is presented to solve the model. The hyperbolic tangent sigmoid transfer function is used in the process of both hidden layers. The optimization is performed through the Bayesian regularization approach (BRA) to solve the WNM. A targeted dataset through the Adam scheme is achieved that is further accomplished using the procedure of training, testing, and verification with ratios of 0.15, 0.13, and 0.72. The correctness of the deep neural network along with the BRA is performed through the overlapping of the solutions. The small calculated absolute error values also enhance the accurateness of the designed procedure. Moreover, the statistical observations are authenticated to reduce the mean square error for the nonlinear WNM.

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“…However, there is a possibility that eddy currents could be produced in any biological tissue by electromagnetic fields [ 27 , 28 ]. Further research on the MHD peristaltic flow of nanofluids has also been carried out [ 29 , 30 , 31 , 32 , 33 , 34 , 35 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Double Diffusive Convection and Inclined Magnetic Field on the Peristaltic Flow of Fourth Grade Nanofluids in a Non-Uniform Channel

et al. 2022

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This study explored the impact of double diffusive convection and inclined magnetic field in nanofluids on the peristaltic pumping of fourth grade fluid in non-uniform channels. Firstly, a brief mathematical model of fourth grade fluid along inclined magnetic fields and thermal and concentration convection in nanofluids was developed. A lubrication approach was used to simplify the highly non-linear partial differential equations. An analytical technique was then used to solve the highly non-linear differential equations. The exact solutions for the temperature, nanoparticle volume fraction and concentration were calculated. Numerical and graphical outcomes were also examined to see the effects of the different physical parameters of the flow quantities. It was noted that as the impact of Brownian motion increased, the density of the nanoparticles also increased, which led to an increase in the nanoparticle fraction. Additionally, it could be observed that as the effects of thermophoresis increased, the fluid viscosity decreased, which lowered the fraction of nanoparticles that was made up of less dense particles.

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Study on the novel suppression of heat transfer deterioration of supercritical water flowing in vertical tube through the suspension of alumina nanoparticles

Cited by 28 publications

References 40 publications

Thermodynamic irreversibility analysis of water conveying argentum and titania nanoparticles subject to inclined stretching surface

Thermodynamic irreversibility analysis of water conveying argentum and titania nanoparticles subject to inclined stretching surface

Designing Hyperbolic Tangent Sigmoid Function for Solving the Williamson Nanofluid Model

Effects of Double Diffusive Convection and Inclined Magnetic Field on the Peristaltic Flow of Fourth Grade Nanofluids in a Non-Uniform Channel

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