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Energies
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Bio-Refineries and Renewable Energies Supported on ICT
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Bio-Refineries and Renewable Energies Supported on ICT

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A4: Bio-Energy".

Deadline for manuscript submissions: closed (30 September 2022) | Viewed by 3672

Special Issue Editor

Prof. Dr. Ramon Fernando Colmenares Quintero

E-Mail Website
Guest Editor
Department of Mechanical Engineering, Universidad Cooperativa de Colombia, Calle 50A No. 41–34, Medellín 050014, Colombia
Interests: modelling and simulation; multi-objective optimisation;energy; life cycle assessment; aerospace

Special Issue Information

Dear Colleagues,

It is a sincere pleasure and a great honour to announce the Third International Conference on Biorefineries and ICT-supported Renewable Energies, organised under the direction of Prof. Dr. Ramón Fernando Colmenares Quintero. This conference will take place between March and April 2022; its academic component will be virtual and the traditional Business Roundtable will be held in two missions with international experts to the cities of Medellin and Bogota, (Colombia) during the same months.

In this conference, Science, Technology and Innovation papers will be presented in the thematic lines of the congress that are addressed in the framework of the Sustainable Development Goals:

  • Bio-economy and hydrogen production;
  • Renewable energy, water, and air;
  • Industry 4.0 for the energy, water, air, and biorefinery sectors.

The objectives of this event are:

  1. To transfer the knowledge acquired from national and international experts to researchers, as well as to people linked to the field of industrial/energy biorefineries or to any person interested in the subject;
  2. Develop co-creation workshops, business roundtables between academia, companies, and international and national experts with companies in order to generate alliances or exchange knowledge around specific projects;
  3. Identify solutions based on capacities and technologies developed by universities, industry, or government that are applicable to the country's energy applicable to the energy challenges of the country and the world.

All scientists or researchers related to our thematic lines are invited to participate in this event. Participation in the International Congress on Biorefineries and Renewable Energies Supported by ICT will not have a specific value, but a donation to an ONG of the Wayuú community in La Guajira, Colombia, is requested.

Prof. Dr. Ramon Fernando Colmenares Quintero
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. 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.

Published Papers (2 papers)

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Research

16 pages, 2066 KiB  
Article
Data Analysis of Electricity Service in Colombia’s Non-Interconnected Zones through Different Clustering Techniques
by Ramón Fernando Colmenares-Quintero, Gina Maestre-Gongora, Marieth Baquero-Almazo, Kim E. Stansfield and Juan Carlos Colmenares-Quintero
Energies 2022, 15(20), 7644; https://doi.org/10.3390/en15207644 - 17 Oct 2022
Cited by 3 | Viewed by 1532
Abstract
Energy determines the social, economic, and environmental aspects that enable the advancement of communities. For this reason, this paper aims to analyze the quality of the energy service in the Non-Interconnected Zones (NIZ) of Colombia. For this purpose, clustering techniques (K-means, K-medoids, divisive [...] Read more.
Energy determines the social, economic, and environmental aspects that enable the advancement of communities. For this reason, this paper aims to analyze the quality of the energy service in the Non-Interconnected Zones (NIZ) of Colombia. For this purpose, clustering techniques (K-means, K-medoids, divisive analysis clustering, and heatmaps) are applied for data analysis in the context of the NIZ to identify patterns or hidden information in the Colombian government data related to the state of the electricity service in these localities during the years 2019–2020. A descriptive statistical analysis and validation of the results of the clustering techniques is also carried out using R software. Through the implementation of clustering algorithms such as K-means, K-medoids, and divisive analysis clustering, potential areas for the development of renewable and alternative energy projects are identified, considering places with deficiencies in their current electricity service, higher consumption, or places with very low daily hours of electricity service. Additionally, relationships were identified in the dataset that can be considered as tools that would support decision-making for academia and industry, as well as the definition of guidelines or strategies from the government to improve energy efficiency and quality for these places, and consequently, the living conditions of the residents of Colombia’s NIZs. Full article
(This article belongs to the Special Issue Bio-Refineries and Renewable Energies Supported on ICT)
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18 pages, 2064 KiB  
Article
Evaluation of Leachate Recirculation as a Stabilisation Strategy for Landfills in Developing Countries
by John J. Sandoval-Cobo, Diana M. Caicedo-Concha, Luis F. Marmolejo-Rebellón, Patricia Torres-Lozada and Johann Fellner
Energies 2022, 15(17), 6494; https://doi.org/10.3390/en15176494 - 5 Sep 2022
Cited by 3 | Viewed by 1749
Abstract
This study evaluated leachate recirculation (LR) as a stabilisation strategy for landfills using bioreactor experiments with excavated waste from a tropical landfill in Colombia. The experimental evaluation was performed in two 115 L bioreactors, one simulating the operation of a landfill with LR, [...] Read more.
This study evaluated leachate recirculation (LR) as a stabilisation strategy for landfills using bioreactor experiments with excavated waste from a tropical landfill in Colombia. The experimental evaluation was performed in two 115 L bioreactors, one simulating the operation of a landfill with LR, Br2, where the leachate produced was recirculated at a rate of 0.8 L d−1, and a control system without LR, Br1. Both systems reached stabilisation indicator values on a dry matter (DM) basis for volatile solids VS (<25% DM) and a biochemical methane potential BMP (≤10 mL CH4 g−1 DM). Likewise, towards the end of the experiment, the leachate generated in Br2 reached stabilisation indicator values for BOD5 (<100 mg L−1) and the BOD (biological oxygen demand)/COD (chemical oxygen demand) ratio (<0.1). Although the stabilisation criterion for COD was not met in any bioreactor (<200 mg L−1), LR helped to release 19% more oxidisable organic matter in Br2 than in Br1, indicating a reduction in the contaminating potential of the waste in the case of uncontrolled discharges of leachate to the environment. Regarding biogas production, the generation of CH4 in Br2 was more intense and its cumulative production was 34.5% higher than Br1; thus, Br2 achieved CH4 emission rates, indicating waste stabilisation (<1.0 L CH4 m−2 h−1) sooner than Br1, showing an accelerating effect of LR on waste degradation. A carbon mass balance indicated that waste degradation, in terms of the initial total organic carbon mineralisation and the C gas discharge via CH4, was greater in Br2. These results demonstrate the LR potential to accelerate the stabilisation of a landfill but also to reduce greenhouse gas emissions in final disposal sites where biogas is also captured and utilised for energy production; a key aspect when improving the sustainability of landfill operations in developing countries. Full article
(This article belongs to the Special Issue Bio-Refineries and Renewable Energies Supported on ICT)
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