Innovations in Advanced Electromagnetic Devices, Materials and Processes for Environmental Protection and Energy Applications

Dear Colleagues,

The development of modern science and technology is based, among other things, on the design, production and in-depth understanding of advanced materials, technologies and electromagnetic processes. This engineering basis should be constantly improved upon as global problems persist everyday in strategic industries such as the environmental, energy, medical, specialized electronics, emission-free automotive and arms industries. Techniques and technologies pertaining to cold atmospheric plasma, superconducting, renewable energy sources and functional materials, as well as biomedical, mechatronic and space nanotechnologies allow us to solve these problems, to a significant extent.

Therefore, this Special Issue focuses on the theory of, research on and search for practical applications of electromagnetic materials, processes and phenomena in the Environmental Protection and Energy sectors.

Issues of interest for publication include, but are not limited to, the following:

• Plasma and ozone technologies for the treatment of air, water, soil, crop and pest control; syngas production; and biofuel production;
• Energy-saving superconducting devices (cables, magnets, fault current limiter SFCLs, magnetic energy storage SMESs, transformers, bearings, machines and SQUIDs) and their applications;
• Electromagnetic technologies in the agriculture and food industry;
• All aspects of electromagnetic compatibility, the influence of electromagnetic fields, noise and vibration on living organisms, and environment monitoring;
• Renewable energy generation and storage facilities, quality, monitoring, consumption and management aspects for green energy;
• The computer-aided design of electromagnetic devices and processes;
• Novel micro- and macro-materials, electromagnetic materials and properties, dielectrics, ferroelectrics, and their applicability in environment protection and energy technologies;
• Biomedical, mechatronic, robotic and space technologies for the energy sector;
• Advanced nanotechnologies and nanomaterials that rely on electromagnetic phenomena and their properties, energy-effective nanostructures, nanofluids for heat and energy applications, and functional materials.

Dr. Oleksandr Boiko
Guest Editor

Manuscript Submission Information

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• cold atmospheric plasma technologies
• superconducting materials and devices
• nanotechnology
• electromagnetic phenomena
• modelling
• design
• renewable energy
• energy storage
• biomedical applications

Title: Electrical percolation in advanced granular metal-dielectric nanostructures: from basics to applications in novel electro-technologies
Authors: Oleksandr Boiko
Affiliation: Poland

Title: Study on Recovery Time of a Conduction Cooled Resistive Superconducting Fault Current Limiter
Authors: Janusz Kozak
Affiliation: Faculty of Electrical Engineering and Computer Science, Department of Electrical Engineering and Superconducting Technology, Lublin University of Technology, 38A Nadbystrzycka St., 20-618 Lublin, Poland
Abstract: The paper presents the influence of the superconducting tape insulation on superconducting fault current limiter recovery time. The analysis is based on experimental results of short circuit tests. The reduction of thermal and dynamic effects of the passage of a fault current can be realized by limitation of short-circuit time and limitation of the value of surge current. The ideal fault current limiter is required to have almost zero impedance at work currents and substantial impedance in fault conditions. Superconducting fault current limiter (SFCL) meets these requirements under certain conditions. The recovery time the very important parameter is showing the ability of the limiter to back to the superconducting state to be ready to limit the following short-circuit. The experimental results shown significant improvement on recovery time by application of thin layer insulation and appropriate design of conduction cooling of HTS tape.

Title: Effect of plasma gas type on the operation characteristics of a three-phase plasma reactor with gliding arc discharge
Authors: Grzegorz Komarzyniec; Henryka Danuta Stryczewska; Oleksandr Boiko
Affiliation: Department of Electrical Engineering and Superconductivity Technologies, Faculty of Electrical Engineering and Computer Science, Lublin University of Technology, Nadbystrzycka 38A, 20-618 Lublin, Poland
Abstract: Three-phase gliding arc discharge reactors are devices in which it is difficult to maintain stable plasma parameters, both electrically, physically and chemically. The main cause of plasma instability is its source, which is freely burning arcs in a three-phase system. In addition, these arcs burn at low currents and are intensively cooled, further increasing their instability. These instabilities translate into the electrical characteristics of the plasma reactor. The analysis for the three gases nitrogen, argon and helium shows that the type of plasma-generating gas and its physical parameters have a strong influence on the operational characteristics of the plasma reactor. Current-voltage characteristics, power and efficiency characteristics of the plasma reactor, as well as characteristics of harmonic content in current and voltage of arcs were plotted experimentally. Characteristics obtained in this way make it possible to determine the areas of effective operation of the plasma reactor and to estimate the quality of the generated plasma.