☆ 4.7 Review

Review of Heat Transfer Analysis in Different Cavity Geometries with and without Nanofluids

NANOMATERIALS (2022)

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Article Energy & Fuels

Swimming of Gyrotactic Microorganism in MHD Williamson nanofluid flow between rotating circular plates embedded in porous medium: Application of thermal energy storage

M. M. Bhatti et al.

Summary: The presence of thermal energy storage devices in concentrated solar power plants is beneficial for controlling power and energy demand. In this study, the unsteady flow confined by parallel rotating circular plates in a porous media filled with Williamson nanofluid is investigated. The effects of magnetic fields on the flow and the relationship between various characteristics are examined.

JOURNAL OF ENERGY STORAGE (2022)

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Article Chemistry, Analytical

Darcy-Forchheimer Flow of Water Conveying Multi-Walled Carbon Nanoparticles through a Vertical Cleveland Z-Staggered Cavity Subject to Entropy Generation

Ghulam Rasool et al.

Summary: This study investigated the dynamics of water conveying MWCNTs through a vertical Cleveland Z-staggered cavity using numerical simulation. The impact of entropy generation on the flow was considered. The results revealed that increasing the Reynold number enhanced the inertial force and decreased the velocity of incompressible Darcy-Forchheimer flow in the middle cavity. Moreover, an increase in the Hartmann number resulted in a reduction in the velocity at the center of the cavity, whereas the Bejan number decreased with increasing Reynold number at various Hartmann numbers but increased at multiple Darcy numbers.

MICROMACHINES (2022)

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Article Chemistry, Multidisciplinary

Nanoparticles to Enhance Melting Performance of Phase Change Materials for Thermal Energy Storage

Yu Han et al.

Summary: This study proposes the use of phase change materials (PCM) as thermal energy storage units to enhance the stability and flexibility of solar-energy-based heating and cooling systems. A mathematical model is developed to evaluate the melting process of PCM, taking into consideration the effect of nanoparticles on heat transfer. The results show that natural convection plays a dominant role in the flow behavior of PCM melting, and the addition of Al2O3 nanoparticles improves PCM melting performance but higher thermal conductivity does not contribute significantly to the melting performance of PCMs.

NANOMATERIALS (2022)

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Article Chemistry, Multidisciplinary

Irreversibility Interpretation and MHD Mixed Convection of Hybrid Nanofluids in a 3D Heated Lid-Driven Chamber

Houssem Laidoudi et al.

Summary: This paper presents a numerical simulation of magneto-convection flow in a 3D chamber with specific permeability and a zigzag bottom wall. The study investigates the percentage of heat energy transferred between the nanofluid and the bottom wall under different criteria. The results show that natural convection dominates when the number of zigzags is 4, while forced convection dominates when the number of zigzags is 2.

NANOMATERIALS (2022)

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Article Chemistry, Multidisciplinary

Hydrothermal and Entropy Investigation of Nanofluid Natural Convection in a Lid-Driven Cavity Concentric with an Elliptical Cavity with a Wavy Boundary Heated from Below

Aiman Alshare et al.

Summary: This study investigates mixed convection in a lid-driven cavity and considers the effects of various parameters. The simulations show that heat transfer plays a major role in entropy generation, while the effects of friction and magnetic fields are minimal.

NANOMATERIALS (2022)

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Article Chemistry, Multidisciplinary

Computational Framework of Magnetized MgO-Ni/Water-Based Stagnation Nanoflow Past an Elastic Stretching Surface: Application in Solar Energy Coatings

Muhammad Mubashir Bhatti et al.

Summary: Motivated by novel nanofluid solar energy coating systems, this article develops a mathematical model of hybrid nanofluid magnetohydrodynamic (MHD) flow in a porous medium and investigates the effects of various factors on the flow. The results show that the hybrid nanofluid achieves excellent thermal enhancement.

NANOMATERIALS (2022)

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Article Engineering, Multidisciplinary

FEM treatments for MHD radiative convective flow of MWCNTsAC2H6O2 nanofluids between inclined hexagonal/hexagonal or hexagonal/cylinder

Sameh E. E. Ahmed et al.

Summary: This paper analyzes the second law of thermodynamics for non-Newtonian power-law nanofluids flowing between inclined polygonal/polygonal or polygonal/cylinder shapes. The study incorporates multi-wall carbon nanotubes in ethylene glycol as a base fluid and considers electromagnetic forces and thermal radiation. It reveals that the flow area and power-law index significantly influence the convective and heat transfer processes.

AIN SHAMS ENGINEERING JOURNAL (2022)

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Article Chemistry, Multidisciplinary

Entropy Generation in 2D Lid-Driven Porous Container with the Presence of Obstacles of Different Shapes and under the Influences of Buoyancy and Lorentz Forces

Apichit Maneengam et al.

Summary: This paper presents a numerical investigation of heat transfer in a hybrid fluid with nanoparticles in a lid-driven container. The study reveals that a triangular baffle exhibits the best thermal activity, while increasing the number of waves on the lower wall reduces thermal activity.

NANOMATERIALS (2022)

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Review Energy & Fuels

Review of solidification of phase change materials dispersed with nanoparticles in different containers

Nabeel S. Dhaidan et al.

Summary: The utilization of phase change materials (PCMs) for thermal energy storage is a promising solution to the challenge of intermittent renewable energy sources. However, PCMs have low thermal conductivity. This study reviewed the solidification process of nano-enhanced phase change materials (NePCM) and evaluated the factors that influence their solidification characteristics. It was found that dispersing nanoparticles in PCM improves the solidification rate but reduces the energy storage capacity. Applying wall waviness, lowering the temperature of the heat transfer fluid (HTF), and increasing the flow rate of HTF enhances the freezing characteristics.

JOURNAL OF ENERGY STORAGE (2022)

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Article Energy & Fuels

Improving the melting performance of phase change materials using novel fins and nanoparticles in tubular energy storage systems

Ji Zhang et al.

Summary: This study proposes an integration of a novel fin structure and Al2O3 nanoparticles to enhance the melting performance of phase change materials (PCMs) for thermal energy storage systems. A mathematical model is formulated and validated against experimental data, and the effects of different fin layouts and volume fractions of nanoparticles on the melting process are discussed. The results show that the combination of fins and nanoparticles improves the melting characteristic of PCMs.

APPLIED ENERGY (2022)

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Article Thermodynamics

Effect of a rotating cylinder on convective flow, heat and entropy production of a 3D wavy enclosure filled by a phase change material

Naef A. A. Qasem et al.

Summary: This manuscript investigates the effects of free and mixed convection heat transfer on the PCM melting process within a 3D wavy cubic enclosure. The study finds that increasing the angular velocity and reducing the undulation number of the hot surfaces significantly enhance the melting process speed of the phase change material.

APPLIED THERMAL ENGINEERING (2022)

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Article Energy & Fuels

Improving the melting performance of phase change materials using novel fins and nanoparticles in tubular energy storage systems

Ji Zhang et al.

Summary: This study proposes a novel integration of fin structure and Al2O3 nanoparticles to enhance the melting performance of phase change materials for thermal energy storage systems. The combination of fins and nanoparticles significantly reduces melting time and improves melting characteristics.

APPLIED ENERGY (2022)

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Article Thermodynamics

Biologically inspired thermal transport on the rheology of Williamson hydromagnetic nanofluid flow with convection: an entropy analysis

M. M. Bhatti et al.

Summary: This article discusses entropy analysis and mass transfer in the asymmetric peristaltic propulsion of nanofluid under convection and magnetic effects. The mathematical modeling is formulated using the second law of thermodynamics, Williamson fluid model, and appropriate transformations to examine nanofluid behavior in asymmetric conditions. The outcomes provide insights on various parameters affecting entropy, temperature, concentration, and velocity profile, with the use of homotopy perturbation method for solving the differential equations.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY (2021)

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Article Thermodynamics

Convective heat transfer mechanisms of molten phase change material in a vertical slender rectangular cavity: A numerical case study

Peiyi Li et al.

Summary: This study numerically investigates the convective heat transfer pattern of molten phase change material in a slender rectangular cavity, showing that increasing Ra or Re can enhance convective heat transfer efficiency, longer cavity length leads to stronger natural convection heat transfer, and different boundary conditions result in varying heat transfer intensities at the walls.

CASE STUDIES IN THERMAL ENGINEERING (2021)

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Article Thermodynamics

Double rotations between an inner wavy shape and a hexagonal-shaped cavity suspended by NEPCM using a time-fractional derivative of the ISPH method

Abdelraheem M. Aly et al.

Summary: A transient two-dimensional ISPH method based on the time-fractional derivative was used to model thermosolutal convection of NEPCM in an annulus, exploring the effects of various parameters on temperature, heat capacity, concentration, and velocity fields. The study found that double rotations and frequency parameters significantly impact nanofluid speed, while an increase in Rayleigh number enhances nanofluid movements within the annulus.

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER (2021)

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Article Mathematics, Applied

Thermodynamic entropy of a magnetized Ree-Eyring particle-fluid motion with irreversibility process: A mathematical paradigm

Muhammad Mubashir Bhatti et al.

Summary: This study investigates the irreversibility process and entropy generation of magnetic dusty liquid under the effects of partial slip in a porous channel, using mathematical modeling and numerical analysis. The results show that entropy generation and Bejan number are influenced by the Brinkman number and non-Newtonian effects. The presence of particles in the fluid decelerates the flow, while the magnetic and fluid parameters have similar effects on peristaltic pumping performance.

ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK (2021)

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Article Thermodynamics

Conjugate forced convection transient flow and heat transfer analysis in a hexagonal, partitioned, air filled cavity with dynamic modulator

Maruf Md Ikram et al.

Summary: This study focuses on the transient analysis of forced convection flow and heat transfer in a hexagonal cavity, incorporating a rotating blade and a flow modulator. Numerical results show an inverse relationship between heat transfer effectiveness and Biot and Rayleigh numbers, improving significantly with higher Reynolds number up to a critical state at Re-cr = 650. Higher Reynolds number also reduces the power spectrum of the system response.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2021)

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Article Physics, Multidisciplinary

Bio-inspired peristaltic propulsion of hybrid nanofluid flow with Tantalum (Ta) and Gold (Au) nanoparticles under magnetic effects

M. M. Bhatti et al.

Summary: The study investigates the peristaltically driven motion of Carreau fluid in a symmetric channel under the influence of an induced and applied magnetic field. Through mathematical modeling and calculations, solutions for velocity distribution, induction equation, and temperature distribution are reported, focusing on the potential applications of tantalum nanoparticles in the medical field. The study also highlights the effective and accurate drug delivery method of magnetic drug targeting in biomedical science.

WAVES IN RANDOM AND COMPLEX MEDIA (2021)

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Article Thermodynamics

Numerical study of melting and heat transfer of PCM in a rectangular cavity with bilateral flow boundary conditions

Haofeng Qin et al.

Summary: The numerical study of melting of phase change material (PCM) in a rectangular cavity with heat transfer fluids (HTFs) flowing from bottom up reveals that natural convection is formed due to non-uniform heat transfer of HTF and cooling between solid-liquid interface and liquid PCM. The melting process can be divided into three stages, mainly influenced by Reynolds number (Re) and Rayleigh number (Ra).

CASE STUDIES IN THERMAL ENGINEERING (2021)

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Article Thermodynamics

The magnetic power on natural convection of NEPCM suspended in a porous annulus between a hexagonal-shaped cavity and dual curves

Abdelraheem M. Aly et al.

Summary: This study investigates the magnetic effects on thermosolutal convection of nano-encapsulated phase change material inside a porous annulus using the ISPH method. The results show that the lengths of the inner dual curves and fusion temperature significantly influence the contours of heat capacity, temperature, streamlines, and concentration in the annulus.

CASE STUDIES IN THERMAL ENGINEERING (2021)

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Article Green & Sustainable Science & Technology

Cavity receivers in solar dish collectors: A geometric overview

Alibakhsh Kasaeian et al.

Summary: This paper reviews previous studies on the applications of solar dish concentrators, focusing on different cavity receiver geometries and their optimization methods. Results show that the geometry of the cavity receiver has a significant impact on thermal efficiency, playing a crucial role in improving system efficiency.

RENEWABLE ENERGY (2021)

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Article Thermodynamics

Combined natural convection-FSI inside a circular enclosure divided by a movable barrier

Ahmadreza B. Shahrestani et al.

Summary: The study found that the degree of plate distortion is directly related to the force applied by the fluid. For low Rayleigh numbers, plate distortion and vortex power in the cavity are minimal, with heat transfer occurring mainly through conduction mechanisms. Increasing Ra number from 10^4 to 10^7 increases the average Nusselt number by over 5 times, while increasing Pr number from 0.71 to 200 significantly increases the total stress on the plate by more than 70 times.

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER (2021)

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Article Chemistry, Multidisciplinary

Numerical Simulation of the Impact of the Heat Source Position on Melting of a Nano-Enhanced Phase Change Material

Tarek Bouzennada et al.

Summary: A numerical study on a new design of Nano-Enhanced Phase change material (NEPCM)-filled enclosure was conducted in this paper. The results show that both heat transfer and melting rates are significantly improved when the inner tube is located at the bottom region of the enclosure and the concentration of nanoparticles in the PCM is increased.

NANOMATERIALS (2021)

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Article Thermodynamics

A modified Fourier approach for analysis of nanofluid heat generation within a semi-circular enclosure subjected to MFD viscosity

A. S. Dogonchi et al.

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER (2020)

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Article Materials Science, Multidisciplinary

Insight into the dynamics of ferrohydrodynamic (FHD) and magnetohydrodynamic (MHD) nanofluids inside a hexagonal cavity in the presence of a non-uniform magnetic field

M. Ghalambaz et al.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS (2020)

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Review Green & Sustainable Science & Technology

Research and review study of solar dish concentrators with different nanofluids and different shapes of cavity receiver: Experimental tests

Reyhaneh Loni et al.

RENEWABLE ENERGY (2020)

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Article Engineering, Chemical

Mixed convection in the heated semi-circular lid-driven cavity for non-Newtonian power-law fluids: Effect of presence and shape of the block

Krunal M. Gangawane et al.

CHINESE JOURNAL OF CHEMICAL ENGINEERING (2020)

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Article Thermodynamics

Heat transfer enhancement by localised time varying thermal perturbations at hot and cold walls in a rectangular differentially heated cavity

N. Thiers et al.

INTERNATIONAL JOURNAL OF THERMAL SCIENCES (2020)

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Experimental investigation on natural convective heat loss of cylindrical cavity with/without a quartz window

Lan Xiao et al.

INTERNATIONAL JOURNAL OF THERMAL SCIENCES (2020)

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Article Energy & Fuels

Experimental insights into the mechanism of heat losses from a cylindrical solar cavity receiver equipped with an air curtain

Elham Alipourtarzanagh et al.

SOLAR ENERGY (2020)

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Experimental investigation into heat transfer performance of water-based magnetic hybrid nanofluids in a rectangular cavity exposed to magnetic excitation

S. O. Giw et al.

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER (2020)

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Article Thermodynamics

Numerical investigation on heat transfer characteristics during melting of lauric acid in a slender rectangular cavity with flow boundary condition

Runsheng Qi et al.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2020)

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Partially heated lid-driven flow in a hexagonal cavity with inner circular obstacle via FEM

Rizwan Ul Haq et al.

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER (2020)

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Variable magnetic forces impact on magnetizable hybrid nanofluid heat transfer through a circular cavity

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JOURNAL OF MOLECULAR LIQUIDS (2019)

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A numerical investigation on the effects of mixed convection of Ag-water nanofluid inside a sim-circular lid-driven cavity on the temperature of an electronic silicon chip

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ACTA ASTRONAUTICA (2019)

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