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Topic Review
Land Use Potential in Energy System Optimization Models
In energy system optimization models (ESOMs), land use aspects can be integrated at the cost of a finer spatial resolution and a more detailed characterization of land, tailored to regional constraints and specificities. 
  • 490
  • 04 Mar 2024
Topic Review
Heat Transfer Characteristics of Natural Gas Hydrate
As a typical unconventional energy reservoir, natural gas hydrate is believed to be the most promising alternative for conventional resources in future energy patterns. The exploitation process of natural gas hydrate comprises a hydrate phase state, heat and mass transfer, and multi-phase seepage. Therefore, the study of heat transfer characteristics of gas hydrate is of great significance for an efficient exploitation of gas hydrate.
  • 485
  • 20 Feb 2024
Topic Review
Biotechnological Valorization of Waste Glycerol into Gaseous Biofuels
The supply of waste glycerol is rising steadily, partially due to the increased global production of biodiesel. Global biodiesel production totals about 47.1 billion liters and is a process that involves the co-production of waste glycerol, which accounts for over 12% of total esters produced. Waste glycerol is also generated during bioethanol production and is estimated to account for 10% of the total sugar consumed on average. Therefore, there is a real need to seek new technologies for reusing and neutralizing glycerol waste, as well as refining the existing ones. Biotechnological means of valorizing waste glycerol include converting it into gas biofuels via anaerobic fermentation processes. Glycerol-to-bioenergy conversion can be improved through the implementation of new technologies, the use of carefully selected or genetically modified microbial strains, the improvement of their metabolic efficiency, and the synthesis of new enzymes.
  • 481
  • 23 Jan 2024
Topic Review Peer Reviewed
Limaçon Technology in Power Generation
Limaçon rotary machines are the heart of power generation systems, especially small- and micro-scale ones. These machines are the prime movers that play the main role in converting the potential energy to other useful forms of work, such as mechanical and/or electrical; the generated energy can also be stored in batteries or in the form of hydrogen. The focus of this paper is on the working of this limaçon technology, and the embodiments and mechanical drives to produce the unique motion of these machines. This paper will also discuss the related power-generating cycles and control schemes.
  • 457
  • 19 Dec 2024
Topic Review
Energy Management for Techno-Economic Hybrid Microgrid Optimization
Integrating energy management techniques into renewable energy systems (RESs) improves microgrids’ energy efficiency and stability. This implementation reduces peak loads and energy costs by aligning consumption patterns with producing renewable energy sources.
  • 456
  • 29 Dec 2023
Topic Review
Production Risks of Forest Biomass for Energy Purposes
Risks threatening human health and safety during work in the process of production and storage of forest biomass can also be divided according to individual production phases: establishment and cultivation of plantations of fast-growing trees and intensive stands; production of forest chips from various forms of forest biomass; transport of biomass; and storage of forest biomass for energy purposes.
  • 421
  • 04 Mar 2024
Topic Review
Digital Twin for Heat Transition
The heat transition is a central pillar of the energy transition, aiming to decarbonize and improve the energy efficiency of the heat supply in both the private and industrial sectors. On the one hand, this is achieved by substituting fossil fuels with renewable energy. On the other hand, it involves reducing overall heat consumption and associated transmission and ventilation losses. In addition to refurbishment, digitalization contributes significantly. Despite substantial research on Digital Twins (DTs) for heat transition at different scales, a cross-scale perspective on heat optimization still needs to be developed. DTs can across various scales, from individual buildings to entire urban areas, intending to advance the transition to sustainable heating.
  • 409
  • 22 Nov 2023
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