Heat transfer augmentation in a diamond shaped enclosure utilizing CNT-water Nanofluid

Azad, Md. Abul Kalam; Shuvo, Moinuddin; Kabir, Rabiul Hasan; Rabbi, Khan Md.; Karim, M Abdel; Rahman, Md. Mustafizur

doi:10.1016/j.icheatmasstransfer.2020.104647

Cited by 21 publications

(8 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Consequently, the PVT system comprises a total of nine layers. Table 1 [ 9 ], Table 2 [ 33 ] and Table 3 [ 27 ] detail the dimensions, materials with design parameters, and thermophysical properties, respectively. 3D numerical simulation is conducted using finite element-based COMSOL Multiphysics software.…”

Section: Mathematical Modelingmentioning

confidence: 99%

Performance evaluation of nanofluid-based photovoltaic thermal (PVT) system with regression analysis

Azad,

Parvin,

Hossain

2024

Heliyon

Self Cite

View full text Add to dashboard Cite

Section: Mathematical Modelingmentioning

confidence: 99%

Performance evaluation of nanofluid-based photovoltaic thermal (PVT) system with regression analysis

Azad,

Parvin,

Hossain

2024

Heliyon

Self Cite

View full text Add to dashboard Cite

“…Non-Newtonian nanofluids are extensively used in many industries and technological aspects like as polymer melts, biological analysis, mixture of aggregates, pigmented liquids, and glues etc. Nanofluids can dramatically increase heat transfer levels in a variety of applications, such as nuclear reactors, industrial cooling, transportation, nanoelectromechanical systems, heat pumps, fiber and fine-grained insulation, chemical catalytic reactors, petroleum storage tanks, lined beds, and radioactive waste repositories [1][2][3]. Nazari et al [4] numerically investigated the mixed convection flow of a non-Newtonian Al2O3-water nanofluid in a square cavity with hot and cold lids.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Non-Newtonian Fluid in a Cavity with Corrugated Bottom Wall Using Buongiorno’s Mathematical Model

et al. 2022

View full text Add to dashboard Cite

A 2-dimensional computational analysis is carried out for a time dependent double diffusive mixed convection flow using non-Newtonian nanofluid. A square-shaped cavity with a corrugated bottom wall is taken with higher temperature and concentration on the top wall. The physical model under consideration is represented by a set of governing equations and solved using the Galerkin weighted residual method based on Finite Element Analysis. Solutions are done for 4 controlling parameters such as Richardson number (Ri = 0.1 - 15), Lewis number (Le = 0.5 - 3), and thermophoresis parameter (Nt = 0.2 - 0.9), and Brownian motion parameter (Nb = 0.2 - 1.0) at different values of τ. For the aforementioned parameters, heat and mass transfer rates, temperature distributions, velocity distributions, and mass distributions in terms of isotherm, streamlines, and iso-concentration are graphically presented. It has been observed that for higher values of Ri, both Nuav and Shav increased while Le decreased for higher values of Nt at any fixed time. It is worth noting that the considered parameter exhibits consistent behavior after a while. HIGHLIGHTS The numerical analysis of non-Newtonian nanofluid with a corrugated bottom wall and a sliding upward wall is performed using Buongiorno's mathematical model The effect of the Richardson number, Lewis number, Brownian motion, and thermophoresis parameters on different dimensionless time periods is addressed The heat and mass transfer rate is increased as the Richardson number, Lewis number, Brownian motion, and thermophoresis parameters increase in value GRAPHICAL ABSTRACT

show abstract

“…Due to having a significantly higher transfer rate, several researchers have studied heat transfer characteristics and applications in engineering devices like heat exchangers, solar collectors, automotive industries, biomedical applications, and so on 2–6 . Several studies reported that the relation between the concentration of nanoparticles and heat transfer rate is not linear and many other roles play a vital role in the heat transfer characteristic of nanofluids 7–9 . Numerous theoretical investigations have been performed to understand the heat transfer characteristics in cavities of various geometrical shapes considering different types of nanofluids 10–13 .…”

Section: Introductionmentioning

confidence: 99%

“…He inferred that at high Ra, the position of heaters does not influence the heat transfer performance; however, horizontally placed heaters endow better heat transfer performance than the vertically placed ones at low Ra . Using the finite element method (FEM), Azad et al 7 performed transient heat transfer analysis within a diamond‐shaped enclosure filled with CNT–water nanofluid. They suggested that 115% of augmentation in heat transfer performance can be accomplished by increasing the Ra = 10 8 and solid volume fraction = 0.12.…”

Section: Introductionmentioning

confidence: 99%

“…A similar experiment was also carried out by Kumaresan et al, 19 and it was found that the Prandtl number decreases with increasing temperature while the heat transfer augments with increasing CNT particle concentration. Many researchers suggested that CNT and graphene‐based nanoparticles as excellent candidates for heat transfer applications owing to their superior thermal properties 7,18,20 . Flow and heat transfer characteristics of a circular tube of 1.8212 mm diameter with constant heat flux were studied by Hwang et al using Al 2 O 3 –water nanofluid.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A numerical comparison among different water‐based hybrid nanofluids on their influences on natural convection heat transfer in a triangular solar collector for different tilt angles

et al. 2021

View full text Add to dashboard Cite

Natural convection inside a triangular solar collector is investigated numerically for different nanofluids and hybrid nanofluids in this study. The individual effects of Al2O3–water, carbon nanotubes (CNT)–water, and Cu–water nanofluids are observed for different solid volume fractions of nanoparticles (0%–10%). Three types of hybrid nanofluids are prepared using different ratios of Al2O3, CNT, and Cu nanoparticles in water. A comparison is made varying the Rayleigh numbers within laminar range (103–106) for different tilt angles (0°, 30°, 60°, and 90°) of the solar collector. The inclined surface of the triangular solar collector is isothermally cold and the bottom wall (absorber plate) is isothermally hot, whereas the vertical wall with respect to the absorber plate is considered adiabatic. Average Nusselt numbers along the hot wall for different parameters are observed. Streamlines and isotherm contours are also plotted for different cases. Dimensionless governing Navier–Stokes and thermal energy conservation equations are solved by Galerkin weighted residual finite element method. Better convective heat transfer is found for higher Rayleigh number, solid volume fraction, and tilt angle. In the case of hybrid nanofluid, increasing the percentage of the nanoparticle that gives better heat transfer performance individually results in enhancing natural convection heat transfer inside the enclosure.

show abstract

Heat transfer augmentation in a diamond shaped enclosure utilizing CNT-water Nanofluid

Cited by 21 publications

References 23 publications

Performance evaluation of nanofluid-based photovoltaic thermal (PVT) system with regression analysis

Performance evaluation of nanofluid-based photovoltaic thermal (PVT) system with regression analysis

Numerical Study of Non-Newtonian Fluid in a Cavity with Corrugated Bottom Wall Using Buongiorno’s Mathematical Model

A numerical comparison among different water‐based hybrid nanofluids on their influences on natural convection heat transfer in a triangular solar collector for different tilt angles

Contact Info

Product

Resources

About