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Sustainable and Secure Energy Conversion Systems

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

Deadline for manuscript submissions: closed (30 September 2022) | Viewed by 2373

Special Issue Editors

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Guest Editor
Chair of Energy Engineering and Climate Protection, Institute for Energy Engineering, Technische Universität Berlin, Marchstr. 18, Secr. KT1, D-10587 Berlin, Germany
Interests: simulation of advanced energy conversion systems; energy & water nexus; application of thermodynamic, economic and environmental analyses to enhance operating efficiencies and reduce emissions, costs and environmental impacts; development of new tools for power plant optimization
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Guest Editor
Department of Industrial Engineering, University of Naples Federico II, 80125 Naples, Italy
Interests: fuel cells; advanced optimization techniques; solar thermal systems; concentrating photovoltaic/thermal photovoltaic systems; energy saving in buildings; solar heating and cooling; organic Rankine cycles; geothermal energy; dynamic simulations of energy systems; renewable polygeneration systems
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The future energy sector must rely on energy conversion systems that can offer secure generation, operate robustly and with close-to-zero environmental impact. Hybrid and polygeneration plants, combining different energy sources and producing several products silmutenously, will be highly relevant and particularly attractive for specific demanding regions and applications. Selected systems should aim for maximum performance (efficiency) and minimization of any social and environmental impacts, being highly based on renewable energies and close-to-zero consumption of valuable resources, like freshwater. Ways to ensure the continuous and robust operation of the systems, also related to changing climatic conditions (climate change), must be considered.

This Special Issue invites studies on the design and implementation of robust energy conversion systems, also accounting for sustainability issues and/or regional and climatic characteristics. Dynamic simulations, energy and exergetic analyses, environmental, social and economic studies, and mathematical optimization, will help to demonstrate the advantages and disadvantages of the studied processes.

The manuscripts received will help to generate and share scientific knowledge on the aforementioned topics, complementing the existing literature and favoring progress towards a more sustainable and secure power generation sector. The editors of this Special Issue will review the papers with special attention, prioritizing those that are written and structured well, not previously published and with methodologies and results that meet the desired purpose.

Prof. Dr. Fontina Petrakopoulou
Prof. Dr. Francesco Calise
Dr. Maria Vicidomini
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at 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. 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.


  • energy security
  • renewable energy
  • zero emissions
  • energy conversion systems
  • renewable energy
  • zero-water plants
  • climate change

Published Papers (1 paper)

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15 pages, 2544 KiB  
A Polygeneration System Based on Desiccant Air Conditioning Coupled with an Electrical Storage
by Luis Gabriel Gesteira, Javier Uche and Natalia Dejo-Oricain
Sustainability 2022, 14(23), 15784; - 27 Nov 2022
Cited by 3 | Viewed by 1771
This study presents an extension of a previous paper recently published by the authors. In particular, the current paper focuses on adding electrical storage to a polygeneration system developed for residential applications. Different from the previous work, it aims to design an off-grid [...] Read more.
This study presents an extension of a previous paper recently published by the authors. In particular, the current paper focuses on adding electrical storage to a polygeneration system developed for residential applications. Different from the previous work, it aims to design an off-grid facility. The polygeneration plant provides electricity, space heating and cooling, domestic hot water, and freshwater for a single-family dwelling in Almería, Spain. The main system technologies are photovoltaic/thermal collectors, reverse osmosis, and desiccant air conditioning. Lead-acid battery storage was added as a backup for the electrical system. The system was performed in the TRNSYS simulation environment for one year with a 5-min time step. A parametric study was carried out to investigate the grid dependence according to the number of batteries installed. Design optimization was also performed to provide the optimal system configuration for the off-grid case. A solar collector efficiency of 0.55 and a desiccant air-conditioning coefficient of performance of 0.42 were obtained. All demands were fully supplied, and the primary energy saving and CO2 saving achieved 100%. A minimum battery state of charge of 30% was reached for a few hours all year long. Full article
(This article belongs to the Special Issue Sustainable and Secure Energy Conversion Systems)
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