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Selected Papers from the ICEUBI2024—International Congress on Engineering

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F: Electrical Engineering".

Deadline for manuscript submissions: 20 May 2025 | Viewed by 1065

Special Issue Editors


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Guest Editor
Department of Electromechanical Engineering, University of Beira Interior, Calçada Fonte do Lameiro, 6201-001 Covilhã, Portugal
Interests: power systems optimization and control; energy conversion systems; renewable energy and energy harvesting; industrial automation; electric road vehicles
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Electromechanical Engineering, University of Beira Interior, Calçada Fonte do Lameiro, 6201-001 Covilhã, Portugal
Interests: photovoltaics; power systems optimization and control; energy conversion systems; renewable energy and energy harvesting
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Electromechanical Engineering, University of Beira Interior, Calçada Fonte do Lameiro, 6201-001 Covilhã, Portugal
Interests: energy storage systems; intelligent optimization algorithm; renewable energy; power electronics; energy management systems; energy communities

Special Issue Information

Dear Colleagues,

ICEUBI is an International Congress on Engineering organized every two years by the Faculty of Engineering of the University of Beira Interior, Portugal, which aims to promote the contribution and concern of engineering for human society, ensuring contact between researchers and practitioners from different fields of engineering and permitting the dissemination of research, innovation, and development within the various sectors of economic activity.

The 2024 congress aims to promote the contribution of engineering for sustainability and resilience and comes in the sequence of the successful ICEUBIs of 2011, 2013, 2015, 2019, and 2022, where a significant number of scientific communications were submitted by participants from different countries, meaning that it is considered a reference organization in the field of engineering.

The scope of ICEUBI 2024 includes all matters within engineering and will provide a place for academics, research-focused practitioners, and policy makers to present their research findings in the areas of engineering and other related areas.

Submissions on topics related to energy, particularly (1) fundamentals; (2) sources; (3) exploration; (4) conversion; (5) control; and (5) policy, are welcomed.

Dr. Maria do Rosário Alves Calado
Prof. Dr. Silvio Mariano
Dr. José Álvaro Nunes Pombo
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

  • energy sources
  • energy storage
  • electrical power systems
  • electric mobility
  • energy and construction
  • energy fundamentals and conversion
  • intelligent systems in energy
  • energy economics and policy

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Published Papers (2 papers)

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Research

13 pages, 1259 KiB  
Article
Energy Production from Landfill Gas: Short-Term Management
by Nuno Soares Domingues
Energies 2025, 18(8), 1974; https://doi.org/10.3390/en18081974 - 11 Apr 2025
Viewed by 243
Abstract
An increasing lack of raw materials, resource depletion, environmental impacts and other concerns have changed the way the population faces garbage disposal and municipalities implement waste management strategies. The aggravated global rise in municipal solid waste (MSW) generation has led to a new [...] Read more.
An increasing lack of raw materials, resource depletion, environmental impacts and other concerns have changed the way the population faces garbage disposal and municipalities implement waste management strategies. The aggravated global rise in municipal solid waste (MSW) generation has led to a new stage in full development, with objectives and targets set by the European Union regarding reducing the production of MSW. The targets also include the increasing selective collection, reuse, recycling and recovery (organic and energetic) of the waste produced. At the same time, the European Union has also set caps for the greenhouse gas emissions and for increasing the use of alternative renewable energy sources. In this context, one of the sources of renewable energy that is beginning to be used to produce electricity in our country is biogas. Finally, AD promotes the development of a circular economy. The present study introduces the formalism for a computer application that simulates the technical–economic behaviour of the short-term management of biogas for the conversion of electricity, and the mathematical model is formulated as a mathematical programming problem with constraints. A simulation for a case study of short-term management is given using the real landfill data available. The case study proves the ability of the LandGEM, despite some authors’ support that the Tabasaran–Rettenberger model provided a more reliable estimate, especially when compared to actual landfill data. The present paper is a contribution to the optimisation of the management of electricity from the use of biogas, namely the second phase of the Strategic Plan for Urban Waste. In addition to complying with the legislation in force, the use of biogas to produce electricity is an added value for the concessionaires of waste treatment and final destination units, as this alternative energy source can provide not only self-sufficiency in electricity for these units but also the export of surplus energy to the National Electricity Grid, thus contributing to the self-sustaining management and energy flexibility that is intended for these infrastructures. Full article
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12 pages, 3293 KiB  
Article
Natural Gas–Hydrogen Blends to Power: Equipment Adaptation and Experimental Study
by Ruben Valente, Jorge M. Costa and Nuno Soares Domingues
Energies 2025, 18(8), 1922; https://doi.org/10.3390/en18081922 - 10 Apr 2025
Viewed by 235
Abstract
An experimental study was devised to assess the technical, environmental, and economic impact of incorporating hydrogen into natural gas. The experimental tests were conducted on a GUNT ET 792 demonstration unit, characterized by operating on a gas cycle in a twin-shaft configuration. The [...] Read more.
An experimental study was devised to assess the technical, environmental, and economic impact of incorporating hydrogen into natural gas. The experimental tests were conducted on a GUNT ET 792 demonstration unit, characterized by operating on a gas cycle in a twin-shaft configuration. The equipment was adapted to accommodate natural gas and mixtures of natural gas with hydrogen in volumetric fractions of 5%, 10%, and 20%. The tests carried out ensured the viability of using these mixtures from a safety perspective. On the other hand, it was possible to evaluate the main differences in the use of these fuel gases in terms of the temperatures and pressures that characterize the main points of the gas cycle, fuel injection pressures, air/fuel ratios, excess air, power output, overall cycle efficiencies, NOX and CO2 emissions, and operational cost. Full article
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