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Renewable Energy Integration into Agricultural and Food Engineering

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

Deadline for manuscript submissions: 31 August 2025 | Viewed by 474

Special Issue Editors


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Guest Editor
School of Engineering, University of KwaZulu-Natal, Durban, South Africa
Interests: renewable energy; food engineering; food science and technology; environmental control

E-Mail Website
Guest Editor
Bioresources Engineering, School of Engineering, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Durban, South Africa
Interests: renewable energy; food engineering; food science and technology; postharvest technology

Special Issue Information

Dear Colleagues,

This Special Issue explores the transformative role of renewable energy in modernizing agricultural and food engineering systems. It integrates renewable energy technologies into agricultural machinery, food processing equipment, and supply chain operations to improve energy efficiency, sustainability, and productivity. This Special Issue seeks to pave the way for a cleaner, more resilient agricultural future by addressing key challenges and showcasing innovative solutions.

The objectives of this Special Issue are as follows:

  1. To explore advancements in renewable energy-powered agricultural machinery and food processing equipment;
  2. To assess the role of renewable energy in decarbonizing agricultural and food supply chains;
  3. To examine energy-efficient solutions that enhance the productivity and sustainability of agricultural and food systems;
  4. To highlight the economic, environmental, and operational benefits of integrating renewable energy across the supply chain;
  5. To present real-world applications, case studies, and pilot projects demonstrating renewable energy innovations.

Renewable Energy Integration in Agricultural Machinery and Equipment:

  • Renewable energy-powered tractors, ploughs, and harvesters;
  • Solar and wind-powered machinery for planting, seeding, and tillage;
  • Battery storage and hybrid systems for off-grid agricultural equipment.

Renewable Energy in Food Processing and Preservation Equipment:

  • Solar-powered milling, grinding, and processing machines;
  • Renewable energy integration in industrial food production lines;
  • Bioenergy and solar-powered food preservation technologies such as cold storage, freezing, and drying.

Renewable Energy Across the Supply Chain:

  • Solar and wind-powered logistics and transportation systems for agricultural products;
  • Renewable energy solutions for warehouse management and inventory systems;
  • Decentralized renewable energy systems for powering rural supply chain networks.

Post-Harvest Management with Renewable Energy:

  • Renewable-powered systems for grain drying, milling, and husking;
  • Applications of solar, biogas, and hybrid systems for post-harvest mechanization;
  • Reducing post-harvest losses using renewable energy in storage and distribution.

Renewable Energy-Powered Aquaculture Systems:

  • Solar aerators and pumps for aquaculture tanks and ponds;
  • Renewable energy integration in feed processing and storage for aquaculture;
  • Energy-efficient cooling and heating systems for fish and seafood processing.

Digitalization and Automation in Energy Integration:

  • IoT-enabled renewable energy management systems for agricultural equipment;
  • Smart sensors and AI are used to optimize renewable energy usage in processing lines;
  • Renewable-powered robotics for harvesting and packaging operations.

Supply Chain Decarbonization

  • Life-cycle analysis of renewable energy integration across agricultural supply chains;
  • Renewable energy for packaging, labelling, and distribution equipment;
  • Innovations in carbon-neutral logistics and delivery systems.

Emerging Technologies and Future Directions:

  • Renewable-powered precision farming drones and autonomous systems;
  • Innovations in hydrogen fuel cells for agricultural equipment;
  • Advanced bioenergy systems for multi-functional agricultural applications.

Case Studies and Best Practices:

  • Success stories of renewable energy-powered processing plants and equipment;
  • Regional case studies on renewable energy adoption in agricultural machinery;
  • Comparative analyses of renewable energy integration models across different countries.

Prof. Dr. Tilahun Seyoum Workneh
Dr. Alaika Kassim
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

  • renewable energy
  • food processing
  • cooling
  • drying
  • supply chain decarbonization
  • renewable-powered machinery
  • solar energy
  • wind energy
  • biomass energy
  • bioenergy
  • hydrogen energy
  • energy-efficient equipment
  • cold chain management
  • solar drying
  • sustainable agriculture
  • climate-smart farming

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Published Papers (1 paper)

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Research

17 pages, 2532 KiB  
Article
Characterization of South African Woody and Non-Woody Invasive Alien Plant Species for Sustainable Bio-Oil Production
by Bongiwe Mtshali, Alaika Kassim, Sipho Sibanda and Tilahun Workneh
Energies 2025, 18(8), 1919; https://doi.org/10.3390/en18081919 - 9 Apr 2025
Viewed by 333
Abstract
Bio-oil energy use in agricultural systems provides sustainable solutions for powering machinery operations and heating and cooling environments in facilities. However, its potential in South Africa is constrained by the limited availability of energy substrate that does not compromise food production, land use, [...] Read more.
Bio-oil energy use in agricultural systems provides sustainable solutions for powering machinery operations and heating and cooling environments in facilities. However, its potential in South Africa is constrained by the limited availability of energy substrate that does not compromise food production, land use, and water resources. This study investigated the physical and chemical properties of six invasive alien plant species (IAPs), three woody species (Acacia mearnsii, Eucalyptus grandis, and Pinus patula), and three nonwoody species (Lantana camara, Chromolaena odorata, and Solanum mauritianum) to assess their suitability for bio-oil production. Key analyses included structural, elemental, proximate, atomic ratio, higher heating value (HHV), and thermogravimetric analysis (TGA) analyses. The results showed that woody IAPs had a significantly higher structural composition (p < 0.05), improving bio-oil yield. The bio-oil can be blended with diesel for agricultural use, while lignin-derived biochar serves as a soil amendment. Higher carbon and hydrogen contents enhanced HHV and combustion, while lower nitrogen and sulfur levels reduced emissions. Despite oxygen hindering pyrolysis, its bioactive properties support crop protection. Compared to South African coal, IAP-derived bio-oil shares similarities with peat coal and could be used for greenhouse heating. This study promotes energy efficiency in agriculture, reduces fossil fuel dependence, and supports environmental sustainability by repurposing IAPs. Additional studies should focus on lignin pretreatment and bio-oil upgrading to reduce oxygenated compounds. Full article
(This article belongs to the Special Issue Renewable Energy Integration into Agricultural and Food Engineering)
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