An experimental investigation of pool boiling characteristics of alumina-water nanofluid over micro-/nanostructured surfaces

Dareh, F. Rajabzadeh; Haghshenasfard, Masoud; Esfahany, Mohsen Nasr; Jazi, H. R. Salimi

doi:10.1080/01457632.2018.1496980

Cited by 12 publications

(3 citation statements)

References 39 publications

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“…Among them are included the ultrafine particles of zinc, aluminum, and titanium oxides (ZnO, Al 2 O 3 , TiO 2 ). They were investigated experimentally in a variety of energy systems, including heat exchangers, cooling, pool boiling, and transformer systems [20][21][22][23][24][25][26], in addition to extensive numerical simulation studies demonstrating the efficacy of these oxides in promoting heat transfer [27][28][29][30][31][32][33][34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Mixed Convection Flow of Magnetized Casson Nanofluid over a Cylindrical Surface

et al. 2022

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This work aimed to establish a numerical simulation of kerosene oil as a host Casson fluid flowing around a cylindrical shape with an applied magnetic field crossing through it, under constant wall temperature boundary conditions. Nanoparticles of zinc, aluminum, and titanium oxides were included to reinforce its thermal characteristics. The governing model was established based on the Tiwari and Das model. Graphical and numerical results for correlated physical quantities were gained through the Keller Box method, with the assistance of MATLAB software (9.2). The combined convection (λ>0 & λ<0), magnetic parameter (M>0), Casson parameter (β>0), and nanosolid volume fraction (0.1≤χ≤0.2) were the parameter ranges considered in this study. According to the current findings, the growth of mixed convection parameter or volume fraction of ultrafine particles contributes to boosting the rate of energy transport, skin friction, and velocity distribution. Zinc oxide–kerosene oil has the highest velocity and temperature, whatever the parameters influencing it.

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Section: Introductionmentioning

confidence: 99%

Mixed Convection Flow of Magnetized Casson Nanofluid over a Cylindrical Surface

et al. 2022

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“…The reason for this decrease was the deposition of nanoparticles on the boiling surface, which made the surface more hydrophilic and delayed the occurrence of nucleate boiling. Dareh et al [10] conducted pool boiling experiments of pure water and water-alumina nanofluids with 0.0025%, 0.005%, and 0.01% volumetric concentrations on the micro and nano-structured surfaces. The results showed that for all the surfaces, the CHF of the nanofluid was higher than the base fluid.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of heat transfer characteristics of nanofluids nucleate and film boiling on horizontal flat plate

2021

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In this paper, the heat transfer characteristics of nanofluids nucleate and film boiling is studied experimentally. For this purpose, Al2O3 and SiO2 deionized water-based nanofluids prepared with three volumetric concentrations of 0.1%, 0.3% and 0.5%. The boiling experiments were conducted on a circular and polished copper surface with a diameter of 25 mm. The results showed that the addition of nanoparticles to the base fluid reduced the heat transfer coefficient of nucleate boiling. The boiling of nanofluids increased the surface wettability and the critical heat flux was significantly higher than that of pure deionized water. The Al2O3 deionized water-based nanofluid with a volumetric concentration of 0.5% had the best performance, with a critical heat flux of 44.56% higher than that of pure deionized water. The presence of nanoparticles in the deionized water-based nanofluid improved the heat transfer coefficient of film boiling. The results showed that the stable film boiling for nanofluids starts at higher wall superheat temperature difference than pure deionized water. Among the investigated concentrations, volumetric concentration of 0.5% had best performance for both nanofluids, so that the minimum heat flux of Al2O3 and SiO2 deionized water-based nanofluids were increased 35.01% and 34.40% compared to pure deionized water, respectively.

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“…In order to investigate heat transfer characteristics of various nanofluids, the effects of nanoparticle materials and concentrations have been experimentally investigated in thermal-fluid systems, such as cooling system [3], pool boiling system [4], heat exchanger [5], and transformer system [6]. Selvam et al [7] experimentally studied heating efficiency in an automobile cooling radiator, and they found that 0.5 vol.% (volume fraction) graphene in deionized water (DIwater) showed a 51% growth in heat transfer coefficient.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Heat Transfer Characteristics of Al₂O₃-Water Nanofluids in an Electric Heater

Wang

Zhai

Zheng

et al. 2020

Heat Transfer Engineering

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Commonly, heat transfer performance of a nanofluid is enhanced by increasing the mass fraction of nanoparticles due to an improvement of the thermo-physical properties. However, increasing the number of nanoparticles in the base fluid will result in an increase of the nanofluid viscosity. This research aims to investigate natural convective heat transfer for an electric heater filled with various Al 2 O 3-water nanofluids. The effects of various mass fractions of the nanofluid (0.1-2.0 wt.%) on the heating efficiency of the electric heater were analyzed over time, and results indicate that the electric heater with the 1.0% Al 2 O 3-water nanofluid has the highest heating efficiency of the external environment.

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An experimental investigation of pool boiling characteristics of alumina-water nanofluid over micro-/nanostructured surfaces

Cited by 12 publications

References 39 publications

Mixed Convection Flow of Magnetized Casson Nanofluid over a Cylindrical Surface

Mixed Convection Flow of Magnetized Casson Nanofluid over a Cylindrical Surface

Experimental study of heat transfer characteristics of nanofluids nucleate and film boiling on horizontal flat plate

Investigation of Heat Transfer Characteristics of Al₂O₃-Water Nanofluids in an Electric Heater

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An experimental investigation of pool boiling characteristics of alumina-water nanofluid over micro-/nanostructured surfaces

Cited by 12 publications

References 39 publications

Mixed Convection Flow of Magnetized Casson Nanofluid over a Cylindrical Surface

Mixed Convection Flow of Magnetized Casson Nanofluid over a Cylindrical Surface

Experimental study of heat transfer characteristics of nanofluids nucleate and film boiling on horizontal flat plate

Investigation of Heat Transfer Characteristics of Al2O3-Water Nanofluids in an Electric Heater

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Investigation of Heat Transfer Characteristics of Al₂O₃-Water Nanofluids in an Electric Heater