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Clean Technol.
Special Issues
Cleaner Production Technologies
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Cleaner Production Technologies

A special issue of Clean Technologies (ISSN 2571-8797).

Deadline for manuscript submissions: closed (31 March 2020) | Viewed by 28971

Special Issue Editors

Prof. Dr. Ryszard Nowosielski

E-Mail Website
Guest Editor
Faculty of Mechanical Engineering, Department of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego 18a, 44-100 Gliwice, Poland
Interests: sustainable technology; cleaner production and cleaner production tools; ecodesign and ecoefficiency; recycling technology; production management
Dr. Aneta Kania

E-Mail Website
Guest Editor
Faculty of Mechanical Engineering, Department of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego 18a, 44-100 Gliwice, Poland
Interests: cleaner production; environmentally-friendly technology; recycling technology; ecodesign; multicriteria optimization; Life Cycle Assessment (LCA)

Special Issue Information

Dear colleagues,

Sustainable development is a concept that requires clean and environmentally-friendly technologies. The number of methods and tools to develop sustainability in production technologies is increasing rapidly. The Special Issue “Cleaner Production Technologies” aims to promote understanding of many environmental issues concerning, e.g., general tools and methods of improving traditional and design of new technologies, and instruments of their ecological estimation and selection. This Issue is open to all subjects related with cleaner production technology and cleaner production tools, sustainable technology, recycling technology, eco-optimization of traditional technologies to improve impacts on the environment, ecodesign and eco-efficiency, proper production management, etc.

Our aim is to bring together scientists and researchers to publish their experimental and advanced research results and proposals of new, simplified or applied methods of improving the impacts of technology on the environment.

We invite all researchers from the area of cleaner production to submit interesting articles for this Special Issue of the Clean Technologies journal.

Prof. Ryszard Nowosielski
Dr. Aneta Kania
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 papers will be 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. Clean Technologies is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. Free publication for well-prepared manuscripts submitted before 31 December 2019. 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.

Published Papers (4 papers)

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Research

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14 pages, 3780 KiB  
Article
Performance Ratio and Degradation Rate Analysis of 10-Year Field Exposed Residential Photovoltaic Installations in the UK and Ireland
by Mahmoud Dhimish
Clean Technol. 2020, 2(2), 170-183; https://doi.org/10.3390/cleantechnol2020012 - 19 May 2020
Cited by 14 | Viewed by 3115
Abstract
As photovoltaic (PV) penetration of the power grid increases, accurate predictions of return on investment require accurate analysis of decreased operational power output over time. The degradation rate in PV module performance must be known in order to predict power delivery. This article [...] Read more.
As photovoltaic (PV) penetration of the power grid increases, accurate predictions of return on investment require accurate analysis of decreased operational power output over time. The degradation rate in PV module performance must be known in order to predict power delivery. This article presents the degradation rates over 10 years for seven different PV systems located in England, Scotland, and Ireland. The lowest PV degradation rates of −0.4% to −0.6%/year were obtained at the Irish PV sites. Higher PV degradation rates of −0.7% to −0.9%/year were found in England, whereas the highest degradation rate of −1.0%/year was observed in relatively cold areas including Aberdeen and Glasgow, located in Scotland. The main reason that the PV systems affected by cold climate conditions had the highest degradation rates was the frequent hoarfrost and heavy snow affecting these PV systems, which considerably affected the reliability and durability of the PV modules and their performance. Additionally, in this article, we analyse the monthly mean performance ratio (PR) for all examined PV systems. It was found that PV systems located in Ireland and England were more reliable compared to those located in Scotland. Full article
(This article belongs to the Special Issue Cleaner Production Technologies)
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15 pages, 7170 KiB  
Article
A Simple Strategy to Reduce the NDZ Caused by the Parallel Operation of DER-Inverters
by Dionisis Voglitsis, Fotis Valsamas, Nick Papanikolaou, Aristotelis Tsimtsios, Ioannis Perpinias and Christos Korkas
Clean Technol. 2020, 2(1), 17-31; https://doi.org/10.3390/cleantechnol2010002 - 21 Jan 2020
Cited by 2 | Viewed by 2467
Abstract
In this work the harmonic injection active anti-islanding technique that has been recently proposed in reference Voglitsis et al. (2018) published in Trans. Power Electron. is generalized under the prospect of a high penetration level of distributed energy resource (DER) installations. Towards this [...] Read more.
In this work the harmonic injection active anti-islanding technique that has been recently proposed in reference Voglitsis et al. (2018) published in Trans. Power Electron. is generalized under the prospect of a high penetration level of distributed energy resource (DER) installations. Towards this direction, the theoretical limitation for the penetration level of such schemes is investigated and a firm theoretical background is presented that takes into account the installation parameters, as well as the penetration level at the installation common coupling point. Furthermore, a substantial feature which indicates the upgrade-ability of each installation is studied. Finally, extensive simulations and experiments verify the theoretical analysis. Full article
(This article belongs to the Special Issue Cleaner Production Technologies)
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Review

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19 pages, 8361 KiB  
Review
Review on the Evolution of Darrieus Vertical Axis Wind Turbine: Large Wind Turbines
by Palanisamy Mohan Kumar, Krishnamoorthi Sivalingam, Teik-Cheng Lim, Seeram Ramakrishna and He Wei
Clean Technol. 2019, 1(1), 205-223; https://doi.org/10.3390/cleantechnol1010014 - 07 Aug 2019
Cited by 12 | Viewed by 9006
Abstract
The objective of the current review is to present the development of a large vertical axis wind turbine (VAWT) since its naissance to its current applications. The turbines are critically reviewed in terms of performance, blade configuration, tower design, and mode of failure. [...] Read more.
The objective of the current review is to present the development of a large vertical axis wind turbine (VAWT) since its naissance to its current applications. The turbines are critically reviewed in terms of performance, blade configuration, tower design, and mode of failure. The early VAWTs mostly failed due to metal fatigue since the composites were not developed. Revisiting those configurations could yield insight into the future development of VAWT. The challenges faced by horizontal axis wind turbine (HAWT), especially in the megawatt capacity, renewed interest in large scale VAWT. VAWT provides a solution for some of the immediate challenges faced by HAWT in the offshore environment in terms of reliability, maintenance, and cost. The current rate of research and development on VAWT could lead to potential and economical alternatives for HAWT. The current summary on VAWT is envisioned to be an information hub about the growth of the Darrieus turbine from the kW capacity to megawatt scale. Full article
(This article belongs to the Special Issue Cleaner Production Technologies)
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20 pages, 7085 KiB  
Review
Strategies for Enhancing the Low Wind Speed Performance of H-Darrieus Wind Turbine—Part 1
by Palanisamy Mohan Kumar, Krishnamoorthi Sivalingam, Teik-Cheng Lim, Seeram Ramakrishna and He Wei
Clean Technol. 2019, 1(1), 185-204; https://doi.org/10.3390/cleantechnol1010013 - 02 Aug 2019
Cited by 19 | Viewed by 13372
Abstract
Small wind turbines are key devices for micro generation in particular, with a notable contribution to the global wind energy sector. Darrieus turbines, despite being highly efficient among various types of vertical axis turbines, received much less attention due to their starting characteristics [...] Read more.
Small wind turbines are key devices for micro generation in particular, with a notable contribution to the global wind energy sector. Darrieus turbines, despite being highly efficient among various types of vertical axis turbines, received much less attention due to their starting characteristics and poor performance in low wind speeds. Radically different concepts are proposed as a potential solution to enhance the performance of Darrieus turbine in the weak wind flows, all along the course of Darrieus turbine development. This paper presents a comprehensive review of proposed concepts with the focus set on the low wind speed performance and critically assessing their applicability based on economics, reliability, complexity, and commercialization aspects. The study is first of its kind to consolidate and compare various approaches studied on the Darrieus turbine with the objective of increasing performance at low wind. Most of the evaluated solutions demonstrate better performance only in the limited tip speed ratio, though they improve the low wind speed performance. Several recommendations have been developed based on the evaluated concepts, and we concluded that further critical research is required for a viable solution in making the Darrieus turbine a low speed device. Full article
(This article belongs to the Special Issue Cleaner Production Technologies)
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