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Phase-Change Materials: Solutions and Technologies for Thermal Energy Storage

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "G2: Phase Change Materials for Energy Storage".

Deadline for manuscript submissions: closed (5 December 2023) | Viewed by 2069

Special Issue Editors


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Guest Editor
Laboratory of Chemistry and Materials Technology, Department of Agricultural Development, Agrofood and Management of Natural Resources, National and Kapodistrian University of Athens, Psachna Campus, 34400 Evia, Greece
Interests: environmental ceramics; functional coatings; surface phenomena; energy-related applications of ceramics and coatings; catalysts
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Guest Editor
Energy and Environmental Research Laboratory, Department of Agricultural Development, Agrofood and Management of Natural Resources, National and Kapodistrian University of Athens, Psachna Campus, 34400 Athens, Greece
Interests: thermal engineering; heat exchangers; CFD simulation; energy storage; energy audits; renewable energy technologies; manufacturing and industrial facilities

Special Issue Information

Dear Colleagues,

One of the major goals worldwide is to improve energy efficiency in various sectors, incl. industrial and agro-food sectors, buildings, electronics, etc. Energy management is a priority for achieving a lower carbon footprint. A by-product of various production processes is thermal energy, which is usually not collected and emitted as waste heat. Additionally, during the working life of various products, heat is not used efficiently. Thermal energy storage solutions and technologies that involve phase-change materials provide flexibility and support the integration of renewable energy sources (RES) into the energy system, facilitating the transition to a more efficient management. Thermal energy storage can correct the mismatch between energy production and energy demand when using RES.

This Special Issue will provide a scientific forum for sharing recent advances and innovations in both theoretical and experimental analysis, as well as applications, syntheses and characterizations of phase-change materials. In addition to original research articles, it will contain invited papers and reviews that will provide new insights for future research.

Topics covered can include, but are not limited to:

  • Thermal energy storage technologies and applications involving phase-change materials;
  • Calculations and simulations;
  • Material synthesis and characterization;
  • Encapsulation and shape stabilization of phase-change materials and related issues;
  • Thermal conductivity and compatibility issues in phase-change material applications;
  • Fundamentals of phase-change materials.

Furthermore, cross-disciplinary research and development studies will also be most welcomed.

Prof. Dr. Vassilis Stathopoulos
Dr. Maria K. Koukou
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. 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 2600 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

  • thermal energy storage
  • phase-change materials
  • encapsulation
  • calculations
  • CFD

Published Papers (1 paper)

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Research

19 pages, 6947 KiB  
Article
Heat Transfer Augmentation Using Duplex and Triplex Tube Phase Change Material (PCM) Heat Exchanger Configurations
by Aurang Zaib, Abdur Rehman Mazhar, Shahid Aziz, Tariq Talha and Dong-Won Jung
Energies 2023, 16(10), 4037; https://doi.org/10.3390/en16104037 - 11 May 2023
Cited by 5 | Viewed by 1699
Abstract
The significance of latent heat thermal energy storage is more substantial when compared to sensible energy storage due to its higher energy storage capability. In this paper, heat transfer enhancement techniques for melting (charging) and solidification (discharging) by using external fins and internal–external [...] Read more.
The significance of latent heat thermal energy storage is more substantial when compared to sensible energy storage due to its higher energy storage capability. In this paper, heat transfer enhancement techniques for melting (charging) and solidification (discharging) by using external fins and internal–external fins for a phase change material (PCM) in duplex and triplex tube heat exchangers (DTHX and TTHX) are investigated numerically. A two-dimensional analysis is carried out using ANSYS Fluent for various configurations. Moreover, the effect of different critical parameters, number of fins, fin length, fin thickness, and the heat exchanger tube material are evaluated in terms of the total time of complete phase change of the PCM. Four cases are investigated; cases 1 and 2 are based upon a DTHX while cases 3 and 4 are TTHXs. By considering case 1 as a reference case, it is found that case 2 and case 3 reduce the total melting time by 48.76% and 90.12%, respectively. Case 4 achieves the shortest time for complete melting of the PCM, and the total melting time is decreased by 92%. Solidification behaviour for all four cases is also investigated. The novel configurations increase (doubled) the supply of heat transfer fluid (HTF) while at the same time significantly enhance the melting/solidification characteristics for all the cases without disrupting the convectional currents during phase change of the PCM. Tube materials with different thermophysical properties are also investigated with the heat transfer rate and melting time significantly improved with a high thermal diffusivity material. Moreover, the heat transfer is found to increase with fin length and fin thickness. Full article
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