Pool boiling heat transfer of ferrofluids on structured hydrophilic and hydrophobic surfaces: The effect of magnetic field

Sadaghiani, Abdolali Khalili; Rajabnia, H.; Çelik, Süleyman Utku; Noh, Hyunwoo; Kwak, Hee Jin; Nejatpour, Mona; Park, Hyun Sun; Acar, Havva Yağcı; Mısırlıoğlu, Burç; Özdemir, Mehmed Rafet; Koşar, Ali

doi:10.1016/j.ijthermalsci.2020.106420

Cited by 18 publications

(3 citation statements)

References 59 publications

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“…Improvements in heat transfer using magnetically actuated nanoparticles have been the subject of both numerical [3,4] and experimental [5,6] studies. However, few studies have focused on the visualization and analysis of the combination of significant parameters.…”

Section: Extended Abstractmentioning

confidence: 99%

On Saturated Flow Boiling Heat Transfer Of Deionized Water and Ferrofluid on Structured Surfaces With/Without External Magnetic Field

Benam¹,

Mohammadilooey²,

Park³

et al. 2023

World Congress on Momentum, Heat and Mass Transfer

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Section: Extended Abstractmentioning

confidence: 99%

On Saturated Flow Boiling Heat Transfer Of Deionized Water and Ferrofluid on Structured Surfaces With/Without External Magnetic Field

Benam¹,

Mohammadilooey²,

Park³

et al. 2023

World Congress on Momentum, Heat and Mass Transfer

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“…A.K. Sadaghiani et al 21 found that the magnetic field enhanced the boiling heat transfer. They investigated pool boiling heat transfer of ferrofluids with 0.025% volume fraction Fe 3 O 4 nano-particle concentration for the cases of with and without the presence of an external magnetic field on different structured surfaces with artificial cavities.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigations on nucleate pool boiling over micro-finned cylindrical surfaces

Shah

Patel

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The nucleate pool boiling heat transfer over micro-finned cylindrical surfaces has application in the heat exchangers used in thermal power plants and chemical industries. The estimation of boiling heat transfer coefficient is an important parameter in the design of two-phase heat exchangers using micro-finned cylindrical surfaces. In the present work, related experimental investigations on four micro-finned cylindrical surfaces with different surface geometry using refrigerant R-141b at atmospheric pressure are conducted to determine the boiling heat transfer coefficient over micro-finned cylindrical surfaces. A correlation is developed by dimensional analysis wherein the effects of geometrical parameters, operating pressure and thermo-physical properties of fluids are taken into consideration and dimensional analysis conducted using Buckingham π-theorem. The correlation developed utilizes experimental data obtained over the present study as well as from previous studies by various researchers including experimental data for water over different micro-finned cylindrical surfaces at 1 bar by Mehta and Kandlikar, experimental data for R123 at 0.97 bar by Saidi et al. and experimental data for R134a over micro-finned cylindrical surface at 6.1 bar, 8.1 bar, 10.1 bar and 12.2 bar by Rocha et al. The heat flux ranging from 5 to 1100 kW/m2 are considered for the analysis. The data points have been compared with the proposed correlation and the absolute average deviation of the whole data set was obtained as 13.43% with root mean square deviation of 0.0273. All the predicted values were within ±15% of the experimental values of the boiling heat transfer coefficient.

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“…It was reported that the best performance of ferrofluid occurs at 2000 kA/m of rhombus and MF strength. Sadaghiani et al [36] performed experiments to assess the impact of MF on pool boiling heat transfer of ferrofluids on structured hydrophilic and hydrophobic surfaces. They reported the positive effect of MF on the boiling heat transfer on surfaces with higher pitch sizes.…”

Section: Introductionmentioning

confidence: 99%

An experimental study on the cooling efficiency of magnetite–water nanofluid in a twisted tube exposed to a rotating magnetic field

Niknejadi

Afrand

Karimipour

et al. 2020

J Therm Anal Calorim

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In this experimental research, the laminar forced convection of water-magnetite nanofluid (NF) in a horizontal twisted tube (TT) is examined under a rotating magnetic field (MF). The findings are compared with those of the plain tube (PT). The influence of nanoadditive concentration ( ), Reynolds number (Re), twist pitch (P) and MF arrangement on the heat transfer, friction factor and overall thermohydraulic features of NF is assessed. The MF consists of two magnets that rotate around the tube. For each of the magnets, three modes of clockwise rotation, counterclockwise rotation and without rotation are considered. The findings showed that the combined use of TT and rotating MF entails an increase in the overall thermohydraulic features of water-magnetite NF. In addition, it was found that the overall thermohydraulic features of NF augment with boosting , while they decline with boosting P and Re. Moreover, it was revealed that the best thermohydraulic features of the water-magnetite NF belonged to the case of = 2%, Re = 500 and P = 10 mm in the presence of a rotating magnetic field resulting from the clockwise rotation of the first magnet and the counterclockwise rotation of the second magnet.

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Pool boiling heat transfer of ferrofluids on structured hydrophilic and hydrophobic surfaces: The effect of magnetic field

Cited by 18 publications

References 59 publications

On Saturated Flow Boiling Heat Transfer Of Deionized Water and Ferrofluid on Structured Surfaces With/Without External Magnetic Field

On Saturated Flow Boiling Heat Transfer Of Deionized Water and Ferrofluid on Structured Surfaces With/Without External Magnetic Field

Experimental investigations on nucleate pool boiling over micro-finned cylindrical surfaces

An experimental study on the cooling efficiency of magnetite–water nanofluid in a twisted tube exposed to a rotating magnetic field

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