Effect of operating parameters on the transient behavior of gravity-assisted heat-pipe using radio-chemically prepared Al 2 O 3  nano-fluid

Abdelaziz, M.; Ali, Azza H.; Elkhatib, Hesham; Othman, Sameh H.

doi:10.1016/j.apt.2016.05.029

Cited by 10 publications

(4 citation statements)

References 33 publications

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“…It is clear that the temperature profile is a decreasing function of nanoparticle volume fraction. Experimental studies have shown that the γ Al 2 O 3 nanofluids are used for the cooling purposes [33, 34, 35, 36, 37, 38]. Thus the present theoretical result revealed that the same behaviour of γ Al 2 O 3 nanofluids.…”

Section: Resultssupporting

confidence: 69%

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Riga – Plate flow of γ Al2O3-water/ethylene glycol with effective Prandtl number impacts

Ganesh¹,

Al‐Mdallal

Fahel

et al. 2019

Heliyon

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In many industrial processes, the cooling process can be improved by varying the flow geometry or changing the additives in the working fluid. The present work concentrates on the flow of γ Al 2 O 3 –Water/Ethylene Glycol over a Gailitis and Lielausis device with an effective Prandtl number for the first time. The thermal transport aspects of electro-MHD boundary layer flow of γ Al 2 O 3 nanofluids over a stretchable Riga plate are studied in two dimensions. The wall parallel Lorentz force is produced due to an external electric field by Riga plate to control the nanofluid flow. Mathematical models are developed with an effective Prandtl number. The no-slip and the prescribed surface temperature boundary conditions are assumed. Results are discussed using numerical results obtained by fourth order RK method with shooting technique. Special case analytical solutions are presented for both momentum and energy equations. The increasing behaviour in velocity profile and decreasing behaviours in temperature, skin friction and Nusselt number are observed with increasing modified Hartmann number. The higher modified Hartmann number leads to a sudden enhancement in the velocity profile of the nanofluid in the presence of effective Pr near the riga plate wall.

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Section: Resultssupporting

confidence: 69%

“…Abdul et al. [36] used γ Al 2 O 3 nano-fluid to analyse the effect of operating parameters on the gravity assisted heat pipe. Bayomy et al [37] have done a numerical and experimental work on the flow of γ-Al 2 O 3 –water nanofluid through aluminum foam heat sink.…”

Section: Introductionmentioning

confidence: 99%

Riga – Plate flow of γ Al2O3-water/ethylene glycol with effective Prandtl number impacts

Ganesh¹,

Al‐Mdallal

Fahel

et al. 2019

Heliyon

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show abstract

“…[ 5 ]. Some of the important investigations on γAl 2 O 3 nanofluid can be accessible from the literature [ 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 ]. Due to attractive cooling applications of γ Al 2 O 3 nanofluids, the present research is devoted to study the heat transfer characteristics of γ Al 2 O 3 –H 2 O in a square enclosure.…”

Section: Introductionmentioning

confidence: 99%

“…The impacts of carbonated MgO, γAl 2 O 3 and TiO 2 nanofluids on wettability modification and oil production were examined by Nowrouz et al [5]. Some of the important investigations on γAl 2 O 3 nanofluid can be accessible from the literature [6,7,8,9,10,11,12,13,14,15,16,17,18,19]. Due to attractive cooling applications of γ Al 2 O 3 nanofluids, the present research is devoted to study the heat transfer characteristics of γ Al 2 O 3 -H 2 O in a square enclosure.…”

Section: Introductionmentioning

confidence: 99%

Numerical study of heat generating γ AlO– HO nanofluid inside a square cavity with multiple obstacles of different shapes

Ganesh¹,

Javed

Al‐Mdallal

et al. 2020

Heliyon

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A numerical research on uniformly heat generating γ Al 2 O 3 -H 2 O nanofluid filled square cavity with multiple obstacles of different shapes is carried out. The cavity is assumed to be heated at bottom and cooled by vertical walls with linearly varying temperature. An adiabatic condition is assumed at the top of the cavity. Circular, square and triangular shaped obstacles are considered. The mathematical model has been solved using Galerkin finite element method. Results are presented for streamlines, isotherms, local and mean Nusselt numbers. Multiple rotating cells are observed in the streamlines. It is found that the local and mean Nusselt numbers increase with nanoparticle volume fraction and higher heat transfer is achieved in the cavity with triangular obstacles.

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Investigation of turbulent heat transfer and nanofluid flow in a double pipe heat exchanger

Bahmani

Sheikhzadeh

Zarringhalam

et al. 2018

Advanced Powder Technology

227

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Effect of operating parameters on the transient behavior of gravity-assisted heat-pipe using radio-chemically prepared Al 2 O 3 nano-fluid

Cited by 10 publications

References 33 publications

Riga – Plate flow of γ Al2O3-water/ethylene glycol with effective Prandtl number impacts

Riga – Plate flow of γ Al2O3-water/ethylene glycol with effective Prandtl number impacts

Numerical study of heat generating γ AlO– HO nanofluid inside a square cavity with multiple obstacles of different shapes

Investigation of turbulent heat transfer and nanofluid flow in a double pipe heat exchanger

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