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Energies
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Advanced Solar Technologies and Thermal Energy Storage
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Advanced Solar Technologies and Thermal Energy Storage

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A2: Solar Energy and Photovoltaic Systems".

Deadline for manuscript submissions: 31 May 2024 | Viewed by 502

Special Issue Editors

Dr. Marco Francesconi

E-Mail Website1 Website2
Guest Editor
Department of Energy, Systems, Territory and Constructions Engineering (D.E.S.T.eC), University of Pisa, 56126 Pisa, Italy
Interests: fluid machinery; internal combustion engine; solar energy
Special Issues, Collections and Topics in MDPI journals
Dr. Elisa Sani

E-Mail Website1 Website2
Guest Editor
CNR-INO National Institute of Optics, Largo E. Fermi 6, I-50125, Firenze, Italy
Interests: materials for solar energy; optical properties of materials; solar receivers; ceramics; nanofluids; nanoparticles; coatings; photon management
Special Issues, Collections and Topics in MDPI journals
Dr. Mario Petrollese

E-Mail Website
Guest Editor
Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, 09124 Cagliari, CA, Italy
Interests: energy system modeling; energy storage system integration; system optimization; renewable energy source integration; thermal energy storage system; ORC power system; concentrating solar power plants; combined heat and power plant
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

As widely recognized in the literature, solar energy is a renewable, abundant, widely distributed, and sustainable renewable source. For these reasons, solar technologies represent a potential strategy for decarbonization to ensure greener energy production. Nonetheless, the main drawback of solar energy is its intermittent behavior that changes with the alternation of day and night, weather conditions, and seasons, thus requiring heat storage to alleviate this limit.

This special issue, "Advanced Solar Technologies and Thermal Energy Storage",  focuses on studies of different uses of solar energy, possibly coupled with heat storage systems, to improve the spread of solar technologies and define their state of the art in different research fields.  For this reason, original papers, reviews, and perspective papers that discuss solar technologies and their uses are welcome.

Dr. Marco Francesconi
Dr. Elisa Sani
Dr. Mario Petrollese
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

  • solar energy and thermal energy storage systems
  • concentrated solar power
  • solar thermal and PV systems
  • thermal energy storage
  • solar desalination
  • solar heating
  • air heaters
  • solar industrial process
  • solar residential uses
  • solar water treatment
  • solar gasification
  • solar propulsion
  • solar cooling
  • solar chemical processes
  • integrated solar energy systems
  • numerical simulations
  • optic

Published Papers (1 paper)

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Research

13 pages, 2776 KiB  
Article
Experimental Characterization of Commercial Scroll Expander for Micro-Scale Solar ORC Application: Part 1
by Maurizio De Lucia, Giacomo Pierucci, Maria Manieri, Gianmarco Agostini, Emanuele Giusti, Michele Salvestroni, Francesco Taddei, Filippo Cottone and Federico Fagioli
Energies 2024, 17(9), 2205; https://doi.org/10.3390/en17092205 - 03 May 2024
Viewed by 240
Abstract
In order to reduce greenhouse gas emissions and achieve global decarbonisation, it is essential to find sustainable and renewable alternatives for electricity production. In this context, the development of distributed generation systems, with the use of thermodynamic and photovoltaic solar energy, wind energy [...] Read more.
In order to reduce greenhouse gas emissions and achieve global decarbonisation, it is essential to find sustainable and renewable alternatives for electricity production. In this context, the development of distributed generation systems, with the use of thermodynamic and photovoltaic solar energy, wind energy and smart grids, is fundamental. ORC power plants are the most appropriate systems for low-grade thermal energy recovery and power conversion, combining solar energy with electricity production. The application of a micro-scale ORC plant, coupled with Parabolic Trough Collectors as a thermal source, can satisfy domestic user demand in terms of electrical and thermal power. In order to develop a micro-scale ORC plant, a commercial hermetic scroll compressor was tested as an expander with HFC-245fa working fluid. The tests required the construction of an experimental bench with monitoring and control sensors. The aim of this study is the description of the scroll performances to evaluate the application and develop optimization strategies. The maximum isentropic effectiveness is reached for an expansion ratio close to the volumetric expansion ratio of the scroll, and machine isentropic effectiveness presents small variations in a wide range of working conditions. The filling factor is always higher than one, due to leakage in the mechanical seals of the scroll or other inefficiencies. This study demonstrates that using a commercial scroll compressor as an expander within an ORC system represents a valid option for such applications, but it is necessary to improve the mechanical seals of the machine and utilize a dedicated control strategy to obtain the maximum isentropic effectiveness. Full article
(This article belongs to the Special Issue Advanced Solar Technologies and Thermal Energy Storage)
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