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Energy Sustainability in Accordance with the European Green Deal
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Energy Sustainability in Accordance with the European Green Deal

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

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 1295

Special Issue Editor

Dr. Michal Puškár

E-Mail Website
Guest Editor
Department of Design and Transport Engineering, Faculty of Mechanical Engineering, Technical University of Košice, Letná 1/9, 040 01 Košice, Slovakia
Interests: emissions; mechanical engineering; vehicle; marine
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue will be focused on the newest technologies related to energy sustainability with regard to the European Green Deal. The European Green Deal, approved in 2020, is a set of political initiatives of the European Commission, the main goal of which is for the European Union (EU) to be climate neutral by 2050. One year later, the European Climate Act was adopted, which legislated that greenhouse gas emissions should be 55% lower in 2030 compared to 1990. The ways to achieve sustainability include energy transformation focused on direct electrification as well as the development of clean fuels. The key challenges are:

  • Air pollution and climate change;
  • Industrial development and energy crisis;
  • New and renewable sources of energy;
  • Sustainable energy preservation and regeneration methods;
  • Sustainability tools;
  • Advanced combustion technologies in engines and the sustainable fuels;
  • Advanced systems and application of hydrogen technologies;
  • Electromobility;
  • Environmental aspects of sustainable energy.

Dr. Michal Puškár
Guest Editor

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

  • energy sustainability
  • European green deal
  • advanced combustion technologies
  • sustainable fuels
  • hydrogen technologies
  • electromobility

Published Papers (1 paper)

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Research

15 pages, 3161 KiB  
Article
New Design of a Separator Unit with Metal Hydride and an Analysis of Its Potential Application in the Process of Hydrogen Separation from a Binary Mixture of Gases
by Marián Lázár, Lukáš Tóth, Natália Jasminská, Tomás Brestovič, Romana Dobáková, Ivan Mihálik, Filip Duda and Ľubomíra Kmeťová
Sustainability 2023, 15(15), 11516; https://doi.org/10.3390/su151511516 - 25 Jul 2023
Viewed by 941
Abstract
Synthesis gases produced in the processes of the high-temperature gasification of otherwise unusable waste, with the use of technologically efficient and cost-effective separation methods, may represent a reliable source of hydrogen intended for applications in the industry and the transport segments. One of [...] Read more.
Synthesis gases produced in the processes of the high-temperature gasification of otherwise unusable waste, with the use of technologically efficient and cost-effective separation methods, may represent a reliable source of hydrogen intended for applications in the industry and the transport segments. One of the possible solutions to the separation of hydrogen from a mixture of gases is the use of metal hydride (MH) alloys, which are capable of binding hydrogen into their structure. This is the subject of the present article, in which a new design is presented for a fully functional system and a hydrogen separator unit, and the potential application of a commonly available metal hydride alloy in the separation of hydrogen from a binary mixture containing carbon dioxide and hydrogen is discussed. Load testing of the selected type of metal hydride alloy with a high concentration of carbon dioxide in the mixture, representing 40 vol. % and 4 vol. %, was performed. In addition, testing the alloy’s ability to separate hydrogen from a mixture containing H2 and CO2 was conducted using small alloy samples and a newly designed hydrogen separator unit. The resulting higher purity of hydrogen after the separation was confirmed by an experiment, in which the hydrogen concentration in the resulting mixture increased by 2.7 vol. %. The purity of the desorbed hydrogen amounted to 99.4 vol. %. The testing also confirmed a high degree of degradation of the alloy, caused by the poisoning effect of CO2 on the selected alloy type. There was also a significant decrease in the absorption ability of the alloy—from 1.7 wt. % to 1.2 wt. %—and a significant extension of the absorption time caused by the slower kinetics of the hydrogen storage, which occurred as early as after ten absorption–desorption cycles. Full article
(This article belongs to the Special Issue Energy Sustainability in Accordance with the European Green Deal)
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