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Circular Economy, Energy Systems, New Trends and Innovations in Renewable Energy Technologies

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

Deadline for manuscript submissions: 31 August 2024 | Viewed by 1186

Special Issue Editors

Prof. Dr. Attila Bai

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Guest Editor
Department of Business Economics, Institute of Applied Economics, Faculty of Economics and Business, University of Debrecen, 4032 Debrecen, Hungary
Interests: economic evaluation of biomass for energy use; economics of solar energy; complex energy systems; energy plants and plantations; feasibility of renewable energy plants; investment analysis
Special Issues, Collections and Topics in MDPI journals
Dr. Zoltán Gabnai

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Guest Editor
Department of Business Economics, Institute of Applied Economics, Faculty of Economics and Business, University of Debrecen, 4032 Debrecen, Hungary
Interests: feasibility and economic evaluation of renewable energies (especially biomass and solar energy); energy plants and plantations; waste management; complex energy systems and circular economy
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Péter Balogh

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Guest Editor
Faculty of Economics and Business, Institute of Sectoral Economics and Methodology, Department of Research Methodology and Statistics, H-4032 Debrecen, Hungary
Interests: social and marketing aspects of renewable energy; psychological decision models for the use of renewable energy; statistical and econometric analysis of renewable energy sources
Special Issues, Collections and Topics in MDPI journals
Dr. Gábor Pintér

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Guest Editor
Department of Economic Methodology, University of Pannonia, 8200 Veszprém, Hungary
Interests: engineering; management and economic aspects of renewable energy; energy storage and hydrogen; circular economy of the energy sector
Special Issues, Collections and Topics in MDPI journals
Dr. Kornél Németh

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Guest Editor
Center for Circular Economy, University of Pannonia, 8200 Veszprém, Hungary
Interests: circular economy; complex assessment of renewable energy sources; development of the renewable energy industry (social, economic, environmental contexts); eco-innovation research

Special Issue Information

Dear Colleagues,

In today’s world, renewable energy sources play a key role not only in energy supply, but also in environmental issues. The circular approach is of great significance for ensuring renewable sources' long-term sustainability and economics. However, there are further needs to ensure fluctuating productions’ cost- and energy-efficient storage. Thus, new solutions and renewable energy technologies are becoming increasingly important, which are essential not only at the household and business level, but also in the community (e.g., municipal) and regional level.

This Special Issue will focus on the sustainability, circularity and storage-related issues of renewable energies and new energy trends. Potential research areas include the following:

  • Complex energy and circular systems, and local self-sufficiency in energy supply;
  • New trends and novelties in renewable energy sources and technologies;
  • Renewable energies and circularity in regional, municipal and enterprise strategies;
  • Energy storage solutions and technologies;
  • Energy use of wastes and by-products;
  • Critical raw materials for energy purposes;
  • Case studies, economic and investment analysis, results of questionnaires in related renewable energy and circular economy topics.

In addition to these aforementioned topics, we will welcome any other relevant papers as long as they fall within the scope of this Special Issue. We will accept submissions of both theoretical and empirical studies.

We look forward to receiving your contributions.

Prof. Dr. Attila Bai
Dr. Zoltán Gabnai
Prof. Dr. Péter Balogh
Dr. Gábor Pintér
Dr. Kornél Németh
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. 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

  • circular economy
  • energy storage
  • renewable energy sources
  • new trends
  • case studies
  • energy systems
  • economics

Published Papers (1 paper)

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Research

18 pages, 2307 KiB  
Article
Greater Energy Independence with Sustainable Steel Production
by Sandra Kiessling, Hamidreza Gohari Darabkhani and Abdel-Hamid Soliman
Sustainability 2024, 16(3), 1174; https://doi.org/10.3390/su16031174 - 30 Jan 2024
Viewed by 919
Abstract
Global energy market price volatility and an upward trajectory of prices per unit of electricity have sent all industrial sectors and many economies to the brink of recession. Alongside the urgent need for decarbonisation of all industries, achieving a globally higher level of [...] Read more.
Global energy market price volatility and an upward trajectory of prices per unit of electricity have sent all industrial sectors and many economies to the brink of recession. Alongside the urgent need for decarbonisation of all industries, achieving a globally higher level of energy independence across all sectors seems imperative. A multi-disciplinary approach with a proposed system of CO2 emissions reduction and capture technologies has the potential for short-term emissions reduction to near-zero in the steel industry—although some of the mechanisms can be implemented across most heavy industries. The findings of this research show a CO2 emissions reduction of ~30% from 977 t of CO2 to 684 t in one single blast furnace production cycle (based on 330 tonnes of liquid iron production capacity, with the mean of 2.1–3.2 tonnes CO2/t of steel and chemical reactions emissions applied), by switching the electricity provider for operating the electric heaters to providers generating energy exclusively from renewable sources. Replacing coal with biomass and adding post-combustion capture units to the blast furnace operation, will add carbon neutrality into the process—resulting in CO2 emissions reduction to near-zero. Carbon capture from biomass utilisation (BECCS) will add the benefit of carbon-negative emissions to the cycle. Simultaneously, energy-saving and process improvement measures implementation (up to 60% efficiency increase), excess heat recovery <30% of energy savings, and retrofitting renewable energy technology resulted in an energy independence of 88%. Engineering solutions, partly subsidised in the UK, are readily available for implementation in the iron and steel manufacturing industry. Full article
(This article belongs to the Special Issue Circular Economy, Energy Systems, New Trends and Innovations in Renewable Energy Technologies)
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