Lighting Engineering & Power Engineering
https://lepe.kname.edu.ua/index.php/lepe
<table style="text-align: left; width: 574px; height: 212px;" border="0" cellspacing="2" cellpadding="2"> <tbody> <tr> <td style="vertical-align: top; width: 170px;"> <p><a href="https://lepe.kname.edu.ua" target="_blank" rel="noopener"><img src="https://lepe.kname.edu.ua/public/site/images/vladyslav_pliuhin/lepe-logo-en.png" alt="" width="160" height="160" /></a></p> </td> <td style="vertical-align: top; width: 769px; text-align: justify;"><strong>International scientific journal "<em>Lighting Engineering & Power Engineering</em>" (LEPE)</strong> is not a for profit organisation. LEPE is a quarterly published, open source journal and operates an online submission with the peer review system allowing authors to submit articles online and track their progress via its web interface.</td> </tr> </tbody> </table> <p> </p> <p>LEPE seeks to promote and disseminate knowledge of the various topics and technologies of lighting engineering, energy resources and electrical engineering. The journal aims to present to the international community important results of work in the fields of renewable energy research, development, application or design. The journal also aims to help researchers, scientists, manufacturers, institutions, world agencies, societies, etc. to keep up with new developments in theory and applications and to provide alternative energy solutions to current issues such as the greenhouse effect, sustainable and clean energy issues.</p> <p style="font-weight: 400;">The LEPE journal aims for a publication speed of 60 days from submission until final publication.</p> <p><strong>Publisher: <a title="Beketov" href="https://en.kname.edu.ua/" target="_blank" rel="noopener">O.M. Beketov National University of Urban Economy in Kharkiv</a></strong></p> <p><strong>Published from</strong> 2002.</p> <p><strong>Periodically:</strong> 3 issues per year.</p> <p><strong>Publishing language:</strong> English.</p> <p><strong>The coverage</strong> of LEPE includes the following areas, but not limited to:</p> <ul> <li class="show">Creating of new light sources</li> <li class="show">Studies of the light effect on humans</li> <li class="show">Energy-saving technologies in lighting and power engineering</li> <li class="show">The use of computer-aided design in lighting and power engineering</li> <li class="show">Artistic and architectural lighting</li> <li class="show">Power quality</li> <li class="show">Automation of lighting and power supply processes</li> <li class="show">Standardization and certification in lighting and power industry</li> <li class="show">Renewable Energy</li> <li class="show">New technologies in power supply systems</li> <li class="show">Power generation</li> <li class="show">Power conversion systems</li> <li class="show">The use of artificial intelligence in the field of renewable energy sources</li> <li class="show">Electric generators</li> <li class="show">Electrical apparatuses in power supply systems</li> <li class="show">Power saving</li> <li class="show">Smart grids in electric power industry</li> <li class="show">Cybersecurity in the power industry</li> <li class="show">Thermoelectric energy</li> <li class="show">Environmental issues in lighting and power engineering</li> <li class="show">Trends in the development of lighting and power engineering</li> </ul> <p><strong>Target</strong> <strong>audience</strong><strong>:</strong> scientists, engineers, technologists who publish original scientific and professional articles, review articles and research.</p> <p><strong>License terms:</strong> authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a <strong><a href="http://creativecommons.org/licenses/by/4.0/" target="_blank" rel="noopener">Creative Commons Attribution License International CC-BY</a></strong> that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal. </p> <p><a title="Open Access" href="https://lepe.kname.edu.ua/index.php/lepe/OpenAccess" target="_blank" rel="noopener"><img src="https://lepe.kname.edu.ua/public/site/images/vladyslav_pliuhin/oa.png" /></a></p> <p><strong>Open Access: </strong> International journal "Lighting Engineering & Power Engineering" provides immediate <a title="Open Access" href="https://lepe.kname.edu.ua/index.php/lepe/OpenAccess" target="_blank" rel="noopener"><strong>open access </strong></a> to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge. Full-text access to scientific articles of the journal is presented on the official website in the <strong><a title="Archive" href="https://lepe.kname.edu.ua/index.php/lepe/issue/archive" target="_blank" rel="noopener">Archives</a></strong> section.</p> <p>The journal's Editorial Board has taken measures to ensure high ethical and professional standards based on <a href="https://doaj.org/bestpractice" target="_blank" rel="noopener">Principles of Transparency and Best Practice in Scholarly Publishing</a>. </p> <p><a href="https://lepe.kname.edu.ua/index.php/lepe/Ethics" target="_blank" rel="noopener"><strong>Publication Ethics and Requirements to Prevent Abuse of Publications</strong></a></p>O.M. Beketov National University of Urban Economy in Kharkiven-USLighting Engineering & Power Engineering2079-424X<p><span style="font-size: medium;"> The authors that are published in this journal agree with the following terms:<br><br></span></p> <ul> <li class="show"><span style="font-size: medium;">The authors reserve the right of authorship of his work and pass to the journal the right of first publication of this work is licensed under a <a href="http://creativecommons.org/licenses/by/3.0/" target="_new">Creative Commons Attribution License</a>, which allows others to freely distribute published work with reference to authors of original works and works first published in this journal.</span></li> </ul> <ul> <li class="show"><span style="font-size: medium;">The authors have the right to enter into a separate additional agreement for non-exclusive distribution of work in the form in which it was published in the magazine (for example, to place work in electronic storage agencies or publish as part of the monograph), providing the reference to the first publication in this journal.</span></li> </ul> <ul> <li class="show"><span style="font-size: medium;"> Journal policy allows and encourages the placement by the authors on the Internet (eg, in storage facilities or personal websites) the manuscript of the works before the submission of the manuscript to the editor as well as during its editorial processing, as it contributes to productive scientific discussion and has a positive impact on efficiency and dynamics citing published work (see. <a href="http://opcit.eprints.org/oacitation-biblio.html" target="_new">The Effect of Open Access</a>).</span></li> </ul>Worn Power Transformers Influence on the Rural Electrical Networks Electrical Supply Reliability
https://lepe.kname.edu.ua/index.php/lepe/article/view/508
<p>The energy supply of agricultural enterprises is characterized by a number of significant problems, the solution of which has been an urgent task for several decades. Characteristic problems are widely known and considered in the scientific and educational literature: the location of agricultural objects on a large territory, their remoteness from central substations, remoteness from the road network, which makes it difficult for emergency teams to access in case of accidents, a high degree of operation of substation equipment and air lines At the same time, the re-equipment of the park of technological equipment of agricultural enterprises makes it necessary to look at the quality of energy supply in a new way - the microprocessor technology used in modern agricultural production makes high demands on the reliability of energy supply. Also, the issue related to emergency modes in the energy supply system, which lead to millions of losses due to product spoilage due to the termination of the technological process, does not lose its relevance. As you know, the energy supply system should be a model of high reliability, but upon inspection, the situation looks a little different: due to various reasons (including both the power deficit and the wear and tear of the equipment in use), the energy supply does not always meet the expectations of consumers in terms of the quality of the services provided. In the case of interruptions in the energy supply of enterprises (including agricultural ones), interruptions in the energy supply cause much more serious consequences, related to spoilage and underproduction of products and millions of losses.</p>Vitaliy Perepechenyi
Copyright (c) 2023 Lighting Engineering & Power Engineering
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2023-12-252023-12-25623717810.33042/2079-424X.2023.62.3.01Mathematical Modeling State Analysis of Multifunctional Energy Converters with a Solid Rotor
https://lepe.kname.edu.ua/index.php/lepe/article/view/509
<p>Multifunctional energy converters (MFEC) are induction motors with an external hollow solid rotor. Structurally, the MFEC is an electric machine in which the stator has the appearance of a conventional winding rotor and is located in a steel tube, which performs the functions of the rotor. In normal use for an electric motor, this design is inefficient due to significant losses in the solid rotor due to eddy currents. In the case of the MFEC, all losses go to the heating of the loose material that moves along the surface of the solid rotor, so the efficiency of the MFEC is very high. The non-standard design of the MFEC raises a number of questions regarding the calculation of such an electric machine and the mathematical modeling of transient modes: start-up in idle mode, start-up under load, operation during long-term parking under current, random load change during operation, etc. The complexity is caused by taking into account the given parameters of the solid rotor during the change of slip and currents. On the one hand, the currents in the rotor affect the parameters of the solid rotor, on the other hand, these currents cannot be calculated without determining the parameters of the rotor. In this regard, this paper aims to reveal problematic issues in mathematical modeling of transient modes of MFEC with a solid rotor and create a basis for further research in this direction.</p>Mykola ZablodskiyVladyslav PliuhinVitaliy TietierievOleg Synelnykov
Copyright (c) 2023 Lighting Engineering & Power Engineering
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2023-12-252023-12-25623798510.33042/2079-424X.2023.62.3.02Remote Determination of Wool Color
https://lepe.kname.edu.ua/index.php/lepe/article/view/511
<p>Analysis of the financial condition of the sheep industry is partly due to the low color purity of sheared wool, in the absence of animal selection to form sheep flocks with the same stripe color and the creation of conditions that would make it impossible to mix animals in flocks with different colors. To enable the above objectives to be achieved, theoretical studies of the conditions of reflection and absorption of optical radiation by the wool coat of animals were carried out, for which purpose the model of the incident ray interacting with the surface of sheep wool was improved and studied. The role of the reflected flux in diffuse scattering on individual wool layers is determined and a model of the reflected flux in the presence of local internal inhomogeneities is developed. The obtained functional dependences characterizing both the reflected and scattered light made it possible to formulate the requirements regarding technical implementation of the proposed method of flock formation by wool color.</p>Andrii TsybukhMykolai LysychenkoViktor Kharchenko
Copyright (c) 2023 Lighting Engineering & Power Engineering
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2023-12-252023-12-25623869210.33042/2079-424X.2023.62.3.03Mathematical Modeling of a Screw Electromechanical Energy Converter Hydrodynamic Processes under Variable Load Conditions
https://lepe.kname.edu.ua/index.php/lepe/article/view/510
<p>This paper examines a multifunctional energy converter (MFEC), which is an induction motor with a solid (ferromagnetic) hollow rotor of external design. The functional purpose of the MFEC is the mixing and heating of loose or low-melting materials that move along the outer surface of the solid rotor. At the same time, the rotor is heated due to eddy currents excited by the inner stator winding. When calculating the dynamic modes of the MFEC - start-up, rotation at a constant speed, braking - it is necessary to know the magnitude of the moment of resistance to the rotation of the rotor. For the MFEC, which mixes the material in a closed limited space, this moment is not constant, but is determined by the viscosity of the medium; the diameter of the mixing channel; the amount of material captured in the mixing process; speed of rotation of the rotor, etc. In order to take into account main factors that are affecting on the moment of resistance, it is necessary to make a mathematical model of the behavior of the device in a fluid or viscous medium. This model will make it possible to find the functional dependence of the moment of resistance on all the above factors and to calculate the power spent on overcoming the resistance forces of the environment. In further calculations, modeling or design of the MFEC, this power will be part of the total capacity of the MFEC. This paper will be useful not only for the specific application under consideration, but also for any other processes related to the dynamic loading of electric motors.</p>Vladyslav PliuhinOleksandr AksonovYurii Trubai
Copyright (c) 2023 Lighting Engineering & Power Engineering
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2023-12-252023-12-25623939910.33042/2079-424X.2023.62.3.04