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Sustainable Analysis and Application of Solar Thermal Systems

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Energy Sustainability".

Deadline for manuscript submissions: 31 January 2026 | Viewed by 745

Special Issue Editors


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Guest Editor
Faculty of Energy and Fuels, Department of Sustainable Energy Development, AGH University, Krakow, Poland
Interests: renewable energy technologies; solar energy; photovoltaic; energy efficiency in buildings
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Faculty of Energy and Fuels, Department of Sustainable Energy Development, AGH University, Krakow, Poland
Interests: renewable energy; solar energy; solar thermal energy; photovoltaic

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Guest Editor

Special Issue Information

Dear Colleagues,

Due to population growth and economic development, the world is experiencing a global challenge in managing high energy demand. The concept of sustainable energy development should include three aspects: the promotion of renewable energy, reduced environmental risks, and high process optimization. In this context, solar energy stands out as one of the most significant renewable and green energy sources. Solar energy plays a pivotal role in achieving sustainable development of energy systems. Currently, there are various solutions for harnessing solar energy for a variety of uses: providing light or a comfortable interior environment, generating electricity, and producing hot water for residential, commercial, or industrial use. However, it is extremely important to focus on developing and optimizing solar energy technologies.

This Special Issue deals with the most important trends and technologies that will support the growth of global solar energy use and, consequently, the implementation of sustainable energy development in various sectors, such as residential, commercial, and industrial.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

  • Solar thermal energy conversion, storage, and applications;
  • Active and passive solar systems, including solar space heating, solar-driven cooling, and solar heat-driven ventilation;
  • Building integrated solar thermal technologies;
  • Solar thermal collector technologies;
  • Concentrated solar thermal technologies;
  • Solar thermal electric technologies;
  • Thermal energy storage;
  • Cogeneration, trigeneration, and hybrid solar systems;
  • Modelling, simulation, and optimization of solar thermal energy systems;
  • Green hydrogen production using solar energy;
  • Solar drying;
  • Solar cooking;
  • Solar desalination;
  • Renewable communities powered by solar energy;
  • Role of solar thermal energy systems in energy transition;
  • Smart energy networks powered by solar energy.

We look forward to receiving your contributions.

Dr. Krzysztof Sornek
Dr. Francesco Liberato Cappiello
Dr. Wojciech Goryl
Dr. Aleksandra Komorowska
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 250 words) can be sent to the Editorial Office for assessment.

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. Sustainability 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 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

  • solar energy
  • solar thermal energy
  • active solar energy systems
  • passive solar energy systems
  • thermal energy storage
  • solar space heating
  • solar-driven cooling
  • solar desalination
  • hybrid solar systems
  • green hydrogen

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Published Papers (1 paper)

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Research

34 pages, 11574 KB  
Article
A Numerical Investigation on the Performance and Sustainability Analysis of Conventional and Finned Air-Cooled Solar Photovoltaic Thermal (PV/T) Systems
by Edip Imik and Mehmet Yilmaz
Sustainability 2025, 17(23), 10638; https://doi.org/10.3390/su172310638 - 27 Nov 2025
Viewed by 220
Abstract
The increasing global demand for sustainable energy has increased the importance of solar photovoltaic thermal (PV/T) systems, which simultaneously increase electrical efficiency by removing excess heat and utilizing it for beneficial purposes. Although the addition of fins is generally known to increase efficiency, [...] Read more.
The increasing global demand for sustainable energy has increased the importance of solar photovoltaic thermal (PV/T) systems, which simultaneously increase electrical efficiency by removing excess heat and utilizing it for beneficial purposes. Although the addition of fins is generally known to increase efficiency, the influence of Z-finned geometries on PV/T system performance has not yet been fully characterized. In this study, the performance of conventional (PV/T-C) and Z-finned (PV/T-F) air-cooled PV/T systems was numerically investigated through comprehensive energy, exergy, and sustainability analyses. Simulations were conducted using ANSYS Fluent 2025 R1. The results revealed that, compared to the PV/T-C system, the PV/T-F system achieved an increase of 17.18% in overall efficiency. Furthermore, the incorporation of fins enhanced the overall exergy efficiency by 2.57% and improved the sustainability index by 0.32%. The findings demonstrate that Z-shaped fins improve the overall, exergy, and sustainability performances of air-cooled PV/T systems under the climatic conditions of Malatya, Türkiye. This study highlights the critical role of fin geometry in enhancing PV/T system performance and contributes valuable insights for the design of more efficient and sustainable solar energy systems. Full article
(This article belongs to the Special Issue Sustainable Analysis and Application of Solar Thermal Systems)
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