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Processes
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Study on Heat and Mass Transfer Processes by Physical Adsorption
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Study on Heat and Mass Transfer Processes by Physical Adsorption

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Energy Systems".

Deadline for manuscript submissions: closed (15 March 2024) | Viewed by 2246

Special Issue Editors

Dr. Abid Hussanan

E-Mail Website
Guest Editor
Department of Mathematics, Division of Science and Technology, University of Education, Lahore 54000, Pakistan
Interests: heat and mass transfer analysis; solutions of non-linear differential equations, nanofluids flow; micropolar nanofluids; mathematical modeling and simulation; exact and numerical solutions
Prof. Dr. Hossein Jafari

E-Mail Website
Guest Editor
Department of Mathematical Sciences, University of South Africa (UNISA), Pretoria, South Africa
Interests: fractional differential equations and their applications; symmetries and conservation laws; new iterative methods; q-calculus; local fractional differential equations
Special Issues, Collections and Topics in MDPI journals
Dr. Abdul Rahman Mohd Kasim

E-Mail Website
Guest Editor
Centre for Mathematical Sciences, Universiti Malaysia Pahang, Kuantan, Malaysia
Interests: boundary layer flow; non-newtonian fluids; numerical analysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Heat and mass transfer are the core mechanisms for many industrial processes as well as technical and scientific devices. Automobiles, steam-electric power generation, energy systems, device cooling devices and in many other industries involve heat and mass transfer processes. Nanofluids are colloidal solutions of nanoparticles with diameters of 1-100 nm and base fluids such as water, sodium alginate, ethanediol and lubricants. Due to their enhanced thermo-physical properties, nanofluids have potential practical applications in automobile engine coolant, coolant in electric generators, cooling of high heat flux devices, and transformers, etc. However, the development of nanofluids is still impaired by different factors such as stability, a lack of good theoretical models and mechanism understanding, production complexity and high production cost. Physical adsorption is a type of adsorption that occurs for most particles in contact with a solid or liquid surface. Many approaches have been developed to improve the global heat transfer within solid adsorbents. The most common method to increase thermal conductivity in the adsorbent bed is by using consolidated materials and materials with high conductivity.

This Special Issue entitled “Study on Heat and Mass Transfer Processes by Physical Adsorption” seeks high-quality studies focusing on mathematical models of heat and mass transfer processes by physical adsorption. Topics include, but are not limited to:

  • Heat and mass transfer processes by physical adsorption;
  • Effects of nanoparticle adsorption on heat transfer;
  • Role of physical adsorption on nanoparticle stabilization;
  • Absorption in different based nanofluids.

Dr. Abid Hussanan
Prof. Dr. Hossein Jafari
Dr. Abdul Rahman Mohd Kasim
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. Processes is an international peer-reviewed open access monthly 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 2400 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

  • heat and mass transfer
  • physical adsorption
  • nanofluids
  • nanoparticle stabilization
  • mathematical models

Published Papers (2 papers)

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Research

16 pages, 4285 KiB  
Article
Thermal Efficiency of Spherical Nanoparticles Al2O3-Cu Dispersion in Ethylene Glycol via the MHD Non-Newtonian Maxwell Fluid Model Past the Stretching Inclined Sheet with Suction Effects in a Porous Space
by Mdi Begum Jeelani and Amir Abbas
Processes 2023, 11(10), 2842; https://doi.org/10.3390/pr11102842 - 27 Sep 2023
Cited by 7 | Viewed by 728
Abstract
The flow of nanoparticles has many dynamic applications in solar systems, the thermal sciences, heating and cooling mechanisms, energy-producing sources, and many other disciplines. Following invaluable applications and inspiration, the current study is carried out by focusing on the thermal efficiency of spherical [...] Read more.
The flow of nanoparticles has many dynamic applications in solar systems, the thermal sciences, heating and cooling mechanisms, energy-producing sources, and many other disciplines. Following invaluable applications and inspiration, the current study is carried out by focusing on the thermal efficiency of spherical nanoparticles of Al2O3-Cu in ethylene glycol through the non-Newtonian Maxwell fluid flow model. In the current analysis, the inclined stretching sheet equipped with suction effects is embedded in porous media, including the magnetohydrodynamics effects. The mathematical representation of the proposed problem is given a form in terms of partial differential equations. Then, this system is reduced to a system of ordinary differential equations by using appropriate similarity variable formulations. The obtained model is solved with bvp4c solver for the graphical and tabular aspects of the velocity field, the temperature field along with the skin friction coefficient, and the Nusselt number. The main outcomes of the results indicate that fluid velocity increases with increasing values for the angle of inclination, Maxwell fluid parameter, and suction parameter; however, the reverse process is seen for the porous medium parameter and magnetic field parameter. Moreover, the fluid temperature rises for augmenting values of the magnetic field parameter and porous medium parameter, whereas the opposite behavior is seen against the suction parameter. The present results are compared with the published ones and it is concluded that there is excellent agreement between them, which endorses the validity and accuracy of the current study. Full article
(This article belongs to the Special Issue Study on Heat and Mass Transfer Processes by Physical Adsorption)
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15 pages, 2210 KiB  
Article
Water Vapor Adsorption on Desiccant Materials for Rotary Desiccant Air Conditioning Systems
by Ziwen Zhu and Muyuan Zhang
Processes 2023, 11(7), 2166; https://doi.org/10.3390/pr11072166 - 20 Jul 2023
Cited by 1 | Viewed by 1024
Abstract
In order to determine the water vapor adsorption performance of a rotary desiccant-based air conditioning system, the behavior of water adsorption on cylindrical pores of different sizes was studied by using classical density functional theory (CDFT) based on perturbated chain statistical associating fluid [...] Read more.
In order to determine the water vapor adsorption performance of a rotary desiccant-based air conditioning system, the behavior of water adsorption on cylindrical pores of different sizes was studied by using classical density functional theory (CDFT) based on perturbated chain statistical associating fluid theory (PC-SAFT). Firstly, the structural parameters of the desiccant material were characterized by scanning electron microscopy (SEM), X-ray Energy Dispersive Spectrum (EDS), and N2 adsorption/desorption isotherms, as well as adsorption equilibrium measurements of water vapor at temperature range 293–308 K. Secondly, the potential energy equation of water molecules in cylindrical pores was determined, and contribution of various terms of PC-SAFT for simulating fluid in cylindrical pores were established. Finally, the pore size distribution (PSD) of the desiccant materials is determined by the PC-SAFT kernel. Moreover, water vapor condensation was investigated with the PC-SAFT model in micropores. The results indicate that the rotary desiccant materials have a large number of micropores with a volume of 0.3669 cm3/g and the amount of water adsorption is about 0.285 g/g. The condensation pressure and the pore width corresponding to the saturated pressure P0 grow with an increase in the temperature, signifying that adjusting the PSD of the material has a significant effect on improving the dehumidification performance. The research concludes that the PSD range of the oxide cylindrical pore between 1.09 and 1.53 nm is particularly beneficial for dehumidification. This study provides valuable theoretical guidance for optimizing dehumidification materials. Full article
(This article belongs to the Special Issue Study on Heat and Mass Transfer Processes by Physical Adsorption)
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