Special Issue "Convection Process and Entropy Generation in Different Fluids"

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "Thermal Management".

Deadline for manuscript submissions: 30 May 2020.

Special Issue Editor

Dr. Gholamreza Kefayati
E-Mail Website
Guest Editor
School of Engineering, University of Tasmania, Tasmania, Hobart, Australia
Interests: CFD; heat and mass transfer; nanofluid; MHD; ferrofluid; non-Newtonian fluid
Special Issues and Collections in MDPI journals

Special Issue Information

Dear Colleagues,

Different kinds of convection process—natural, forced, and mixed convection—are present in various industries where heat and mass transfer play a key role. In the cited industries, the studied fluid can be Newtonian or non-Newtonian, and the character has an important impact on heat and mass transfer, as well as fluid flow behavior. In addition, it is crucial to manage the energy loss in the convection process, and one of the common ways in this area is studying entropy generation and minimizing the value in order to optimize the process.

This Special Issue invites original research papers to address studies into the various types of convection process numerically and experimentally for different Newtonian and non-Newtonian fluids, nanofluids, ferrofluids, MHD, and multiphase flows. Further, authors are encouraged to submit papers addressing entropy generation in a convection process.

Prof. Gholamreza Kefayati
Guest Editor

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 papers will be 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. Energies 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 1800 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

  • natural convection
  • mixed convection
  • entropy generation
  • newtonian and non-newtonian fluids
  • nanofluids
  • MHD
  • computational method

Published Papers (2 papers)

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Research

Open AccessArticle
Dynamic and Economic Investigation of a Solar Thermal-Driven Two-Bed Adsorption Chiller under Perth Climatic Conditions
Energies 2020, 13(4), 1005; https://doi.org/10.3390/en13041005 - 24 Feb 2020
Abstract
Performance assessment of a two-bed silica gel-water adsorption refrigeration system driven by solar thermal energy is carried out under a climatic condition typical of Perth, Australia. A Fourier series is used to simulate solar radiation based on the actual data obtained from Meteonorm [...] Read more.
Performance assessment of a two-bed silica gel-water adsorption refrigeration system driven by solar thermal energy is carried out under a climatic condition typical of Perth, Australia. A Fourier series is used to simulate solar radiation based on the actual data obtained from Meteonorm software, version 7.0 for Perth, Australia. Two economic methodologies, Payback Period and Life-Cycle Saving are used to evaluate the system economics and optimize the need for solar collector areas. The analysis showed that the order of Fourier series did not have a significant impact on the simulation radiation data and a three-order Fourier series was good enough to approximate the actual solar radiation. For a typical summer day, the average cooling capacity of the chiller at peak hour (13:00) is around 11 kW while the cyclic chiller system coefficient of performance (COP) and solar system COP are around 0.5 and 0.3, respectively. The economic analysis showed that the payback period for the solar adsorption system studied was about 11 years and the optimal solar collector area was around 38 m2 if a compound parabolic collector (CPC) panel was used. The study indicated that the utilization of the solar-driven adsorption cooling is economically and technically viable for weather conditions like those in Perth, Australia. Full article
(This article belongs to the Special Issue Convection Process and Entropy Generation in Different Fluids)
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Open AccessArticle
Dual Solutions and Stability Analysis of Micropolar Nanofluid Flow with Slip Effect on Stretching/Shrinking Surfaces
Energies 2019, 12(23), 4529; https://doi.org/10.3390/en12234529 - 28 Nov 2019
Cited by 2
Abstract
The purpose of the present paper is to investigate the micropolar nanofluid flow on permeable stretching and shrinking surfaces with the velocity, thermal and concentration slip effects. Furthermore, the thermal radiation effect has also been considered. Boundary layer momentum, angular velocity, heat and [...] Read more.
The purpose of the present paper is to investigate the micropolar nanofluid flow on permeable stretching and shrinking surfaces with the velocity, thermal and concentration slip effects. Furthermore, the thermal radiation effect has also been considered. Boundary layer momentum, angular velocity, heat and mass transfer equations are converted to non-linear ordinary differential equations (ODEs). Then, the obtained ODEs are solved by applying the shooting method and in the results, the dual solutions are obtained in the certain ranges of pertinent parameters in both cases of shrinking and stretching surfaces. Due to the presence of the dual solutions, stability analysis is done and it was found that the first solution is stable and physically feasible. The results are also compared with previously published literature and found to be in excellent agreement. Moreover, the obtained results reveal the angular velocity increases in the first solution when the value of micropolar parameter increases. The velocity of nanofluid flow decreases in the first solution as the velocity slip parameter increases, whereas the temperature profiles increase in both solutions when thermal radiation, Brownian motion and the thermophoresis parameters are increased. Concentration profile increases by increasing N t and decreases by increasing N b . Full article
(This article belongs to the Special Issue Convection Process and Entropy Generation in Different Fluids)
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