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Nanomaterials
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Nanofluid and Thermal Management
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Nanofluid and Thermal Management

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Energy and Catalysis".

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 9149

Special Issue Editors

Dr. Cong Qi

E-Mail Website
Guest Editor
School of Electrical and Power Engineering, China University of Mining and Technology, No1, Daxue Road, Xuzhou 221116, China
Interests: nanofluid; nano-film; thermal management of batteries/electronic components; bionics; photothermal conversion; microchannel; Lattice Boltzmann model
Dr. Meijie Chen

E-Mail Website
Guest Editor
School of Energy Science and Engineering, Central South University, No.932 South Lushan Road, Changsha 410083, China
Interests: nanostructure; photothermal conversion; thermal radiation; plasmonic; metasurface

Special Issue Information

Dear Colleagues,

Due to the energy crisis and energy inefficiency, as well as the high heat dissipation of batteries and electronic components, advanced technology of nanofluid and thermal management as an effective means of heat transfer enhancement is becoming more significant and has attracted increasing attention.

We are pleased to invite you to submit papers to the Special Issue "Nanofluid and Thermal Management" in Nanomaterials. This Special Issue aims to develop advanced technology of nanofluid and thermal management, and to reveal the mechanism of heat transfer enhancement at the nano scale. Both original research and review articles on nanofluid and thermal management are highly welcome.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following: heat transfer enhancement of nanofluids, thermal management of batteries, thermal management of electronic components, photothermal conversion, and photovoltaic conversion. We look forward to receiving your contributions.

Dr. Cong Qi
Dr. Meijie Chen
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nanofluids
  • thermal management
  • photothermal conversion
  • photovoltaic conversion
  • nanofilms
  • microchannels
  • bionic structures
  • porous media
  • heat sink
  • heat pipe

Published Papers (5 papers)

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Research

24 pages, 4741 KiB  
Article
Experimental and Theoretical Investigation of the Thermophysical Properties of Cobalt Oxide (Co3O4) in Distilled Water (DW), Ethylene Glycol (EG), and DW–EG Mixture Nanofluids
by Monther Alsboul, Mohd Sabri Mohd Ghazali, Mohamed R. Gomaa and Aliashim Albani
Nanomaterials 2022, 12(16), 2779; https://0-doi-org.brum.beds.ac.uk/10.3390/nano12162779 - 13 Aug 2022
Cited by 5 | Viewed by 1340
Abstract
Solid particles scattered in a base fluid for a standard no larger than 100 nm, constituting a nanofluid, can be used to improve thermophysical characteristics compared to the base fluid. In this study, theoretical and experimental investigations were carried out to estimate the [...] Read more.
Solid particles scattered in a base fluid for a standard no larger than 100 nm, constituting a nanofluid, can be used to improve thermophysical characteristics compared to the base fluid. In this study, theoretical and experimental investigations were carried out to estimate the density, viscosity, and effective thermal conductivity of Co3O4 in distilled water (DW), ethylene glycol (EG), and DW–EG mixture nanofluids. Co3O4 nanoparticles with diameters of 50 nm were dispersed in different base fluids (i.e., EG, DW, 60EG:40DW, 40EG:60DW, 20EG:80DW) with varying concentrations of 0.025–0.4 vol.%. Thermal conductivity was estimated by the hot-wire technique, and viscosity was determined using a viscometer apparatus. According to the measurements, the viscosity of Co3O4 nanofluids decreased with increasing temperature, and increased with increasing volume fraction. The results revealed that the thermal conductivity of Co3O4 nanofluids increased with increasing temperature and volume concentrations. Moreover, the measurements found that the maximum thermal conductivity of 10.8% and the maximum viscosity of 10.3% prevailed at 60 °C in the volume fraction of 0.4%. The obtained viscosity and thermal conductivity results of the present experiments on Co3O4 nanofluids were compared with previous results. The results showed good agreement with theoretically proposed models to predict nanofluids’ viscosity and thermal conductivity. Thus, the thermal conductivity results of Co3O4 nanofluids are promising with respect to the use of nanofluids in solar thermal applications. Full article
(This article belongs to the Special Issue Nanofluid and Thermal Management)
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12 pages, 2266 KiB  
Article
Nanoparticle Sphericity Investigation of Cu-Al2O3-H2O Hybrid Nanofluid Flows between Inclined Channels Filled with a Porous Medium
by Xiangcheng You
Nanomaterials 2022, 12(15), 2552; https://0-doi-org.brum.beds.ac.uk/10.3390/nano12152552 - 25 Jul 2022
Cited by 4 | Viewed by 1147
Abstract
With the porous medium-filling inclined channels, we investigate the nanoparticle sphericity of Cu-Al2O3-H2O hybrid nanofluid flows. We consider the constant flow rate through the channels as well as the uniform heat flux on wall channels. We provide [...] Read more.
With the porous medium-filling inclined channels, we investigate the nanoparticle sphericity of Cu-Al2O3-H2O hybrid nanofluid flows. We consider the constant flow rate through the channels as well as the uniform heat flux on wall channels. We provide analytical solutions for both the velocity and temperature fields. Several parameters are considered in the analytical solutions, including the mixed convection variable, the Peclet number, the channel tilt angle, and nanoparticle sphericity and volume fractions. The significant findings of this study are that the effective thermal conductivity increases when increasing the temperature in the same nanoparticle volume fractions. Nanoparticles with a smaller average sphericity size have a greater specific surface area and contain a greater concentration of small particles, which enhances the internal heat transfer of nanofluids. The other noteworthy observation of this study is that when the nanoparticle volume fraction increases from 0.1 to 0.2, although the heat transfer enhancement rate has slowed down, it has also increased by about 25%. The hybrid nanofluids have suitable stability, and the enhanced heat transfer effect is better with the increase in nanoparticle compositions. Full article
(This article belongs to the Special Issue Nanofluid and Thermal Management)
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17 pages, 7609 KiB  
Article
Numerical Study of Lid-Driven Hybrid Nanofluid Flow in a Corrugated Porous Cavity in the Presence of Magnetic Field
by Apichit Maneengam, Tarek Bouzennada, Aissa Abderrahmane, Kamel Guedri, Wajaree Weera, Obai Younis and Belgacem Bouallegue
Nanomaterials 2022, 12(14), 2390; https://0-doi-org.brum.beds.ac.uk/10.3390/nano12142390 - 13 Jul 2022
Cited by 17 | Viewed by 1741
Abstract
The lid-driven top wall’s influence combined with the side walls’ waviness map induce the mixed convection heat transfer, flow behavior, and entropy generation of a hybrid nanofluid (Fe3O4–MWCNT/water), a process analyzed through the present study. The working fluid occupies [...] Read more.
The lid-driven top wall’s influence combined with the side walls’ waviness map induce the mixed convection heat transfer, flow behavior, and entropy generation of a hybrid nanofluid (Fe3O4–MWCNT/water), a process analyzed through the present study. The working fluid occupies a permeable cubic chamber and is subjected to a magnetic field. The governing equations are solved by employing the GFEM method. The results show that the magnetic force significantly affects the working fluid’s thermal and flow behavior, where the magnetic force’s perpendicular direction remarkably improves the thermal distribution at Re = 500. Also, increasing Ha and decreasing Re drops both the irreversibility and the heat transfer rate. In addition, the highest undulation number on the wavy-sided walls gives the best heat transfer rate and the highest irreversibility. Full article
(This article belongs to the Special Issue Nanofluid and Thermal Management)
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22 pages, 28310 KiB  
Article
Numerical and Thermal Investigation of Magneto-Hydrodynamic Hybrid Nanoparticles (SWCNT-Ag) under Rosseland Radiation: A Prescribed Wall Temperature Case
by Ali Hassan, Azad Hussain, Mubashar Arshad, Meznah M. Alanazi and Heba Y. Zahran
Nanomaterials 2022, 12(6), 891; https://0-doi-org.brum.beds.ac.uk/10.3390/nano12060891 - 08 Mar 2022
Cited by 24 | Viewed by 1971
Abstract
Thermal heat generation and enhancement have been examined extensively over the past two decades, and nanofluid technology has been explored to address this issue. In the present study, we discuss the thermal heat coefficient under the influence of a rotating magneto-hydrodynamic hybrid nanofluid [...] Read more.
Thermal heat generation and enhancement have been examined extensively over the past two decades, and nanofluid technology has been explored to address this issue. In the present study, we discuss the thermal heat coefficient under the influence of a rotating magneto-hydrodynamic hybrid nanofluid over an axially spinning cone for a prescribed wall temperature (PWT) case. The governing equations of the formulated problem are derived by utilizing the Rivlin–Ericksen tensor and boundary layer approximation (BLA). We introduce our suppositions to transform the highly non-linear partial differential equations into ordinary differential equations. The numerical outcomes of the problem are drafted in MATLAB with the of help the boundary value problem algorithm. The influences of several study parameters are obtained to demonstrate and analyze the magneto-hydrodynamic flow characteristics. The heat and mass transfer coefficients increase and high Nusselt and Sherwood numbers are obtained with reduced skin coefficients for the analyzed composite nanoparticles. The analyzed hybrid nanofluid (SWCNT-Ag–kerosene oil) produces reduced drag and lift coefficients and high thermal heat rates when compared with a recent study for SWCNT-MWCNT–kerosene oil hybrid nanofluid. Maximum Nusselt (Nu) and Sherwood (Sh) numbers are observed under a high rotational flow ratio and pressure gradient. Based on the results of this study, we recommend more frequent use of the examined hybrid nanofluid. Full article
(This article belongs to the Special Issue Nanofluid and Thermal Management)
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13 pages, 4190 KiB  
Article
Optical Properties of Plasma Dimer Nanoparticles for Solar Energy Absorption
by Chunlei Sun, Caiyan Qin, Han Zhai, Bin Zhang and Xiaohu Wu
Nanomaterials 2021, 11(10), 2722; https://0-doi-org.brum.beds.ac.uk/10.3390/nano11102722 - 15 Oct 2021
Cited by 15 | Viewed by 1714
Abstract
Plasmonic nanofluids have excellent optical properties in solar energy absorption and have been widely studied in solar thermal conversion technology. The absorption of the visible region of solar energy by ordinary metal nanoparticles is usually limited to a narrow resonance band, so it [...] Read more.
Plasmonic nanofluids have excellent optical properties in solar energy absorption and have been widely studied in solar thermal conversion technology. The absorption of the visible region of solar energy by ordinary metal nanoparticles is usually limited to a narrow resonance band, so it is necessary to enhance the coupling effect of nanoparticles in the visible spectrum region to improve absorption efficiency. However, it is still a difficult task to improve solar energy absorption by adjusting the structure and performance of nanoparticles. In this paper, a plasma dimer Ag nanoparticle is proposed to excite localized surface plasmon resonance (LSPR). Compared with an ordinary Ag nanoparticle in the visible region, the plasmonic Ag dimer nanoparticle produces more absorption peaks and broader absorption bands, which can broaden solar energy absorption. By analyzing the electromagnetic field of the nanoparticle, the resonance mode of the plasma dimer is discussed. The effects of the geometric dimensions of the nanoparticle and the embedding of two spheres on the optical properties are studied. In addition, the effects of a trimer and its special structure on the optical properties are also analyzed. The results show that the proposed plasma dimer Ag nanoparticle has broad prospects for application in solar thermal conversion technology. Full article
(This article belongs to the Special Issue Nanofluid and Thermal Management)
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