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Energies
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Emerging Renewable Energy Technologies
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Emerging Renewable Energy Technologies

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

Deadline for manuscript submissions: closed (1 September 2021) | Viewed by 3618

Special Issue Editors

Dr. Farzad Faraji Dizaji

E-Mail Website
Guest Editor
Department of Mechanical Engineering, Dublin City University, Dublin 9, Ireland
Interests: renewable energy; multiphase; FlowGranular flow; bubble plume; CFD
Dr. Alireza Rahbari

E-Mail Website
Guest Editor
Research School of Engineering, The Australian National University, Canberra, ACT 2601, Australia
Interests: renewable energy; energy system-level modeling; dynamic system-level simulation; techno-economic assessment; combustion of dust particles; nanofluids; porous media

Special Issue Information

Dear Colleagues,

Currently, 84% of the energy demand is met by fossil fuels such as oil, coal and natural gas. It is apparent that the excessive use of non-renewable energy resources together with the growing energy demand is unsustainable due to negative environmental consequences, including air pollution and global warming.

This Special Issue, entitled “Emerging Renewable Energy Technologies”, seeks to communicate the knowledge on the recent advancements in renewable energy systems to support the transition from fossil fuels to low-carbon energy technologies. Authors are welcome to submit papers which bridge the knowledge gaps between research, development, and implementation.

Dr. Alireza Rahbari
Dr. Farzad Faraji Dizaji
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

  • Solar energy
  • Wind power technology
  • Biomass conversion and bioenergy
  • Techno-economic analysis and life-cycle assessment
  • Hybrid renewable energy systems
  • Hydrogen production
  • Renewable heating/cooling systems
  • Desalination

Published Papers (1 paper)

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Research

16 pages, 2156 KiB  
Article
Modification of Energy Parameters in Wood Pellets with the Use of Waste Cooking Oil
by Aneta Saletnik, Bogdan Saletnik and Czesław Puchalski
Energies 2021, 14(20), 6486; https://doi.org/10.3390/en14206486 - 10 Oct 2021
Cited by 6 | Viewed by 2341
Abstract
Biomass is one of the most important sources of renewable energy. It is expected that in the coming decades, biomass will play a major role in replacing fossil fuels. The most commonly used biofuels include wood pellet, which is a cost-effective, uniform and [...] Read more.
Biomass is one of the most important sources of renewable energy. It is expected that in the coming decades, biomass will play a major role in replacing fossil fuels. The most commonly used biofuels include wood pellet, which is a cost-effective, uniform and easy-to-use material. In view of the growing interest in this type of resource, novel methods are being investigated to improve the quality of pellet. This article presents the results of a laboratory study focusing on wood pellets refined with waste sunflower cooking oil applied by spraying. In this work, authors attempted to modify the energy parameters of wood pellets with the use of waste cooking oil. Addition of waste cooking oil, applied at the rates of 2%, 4%, 6%, 8%, 10% and 12% relative to the weight of pellets, increased the calorific value of the pellets without decreasing their durability. The highest dose of the modifier (12%) on average led to a 12–16% increase in calorific value. In each case, the addition of sunflower oil resulted in decreased contents of ash in the pellets; on average a decrease of 16–38% was observed in the samples treated with the highest dose of the modifier. The treatment led to a higher content of elements affecting the heating value, i.e., carbon and hydrogen, which on average increased by 7.5–12%, and 7.0–10.0%, respectively. The presented method seems to be a promising way of increasing the calorific value of pellets. Further research on refining the method and the possibility of using it in industry is necessary. Full article
(This article belongs to the Special Issue Emerging Renewable Energy Technologies)
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