Browsing by Author "Hilorme, Tetiana"
Now showing 1 - 6 of 6
Results Per Page
Sort Options
Item Assessment of Energy Security of Ukraine in the Implementation of Renewable Energy Technologies(Національний університет «Полтавська політехніка імені Юрія Кондратюка», 2022) Hilorme, Tetiana; Nakashydze, Liliya V.; Liashenko, IrynaENG: The article investigates the definition of indicators of effective assessment of energy security of Ukraine in the implementation of renewable energy technologies based on SWOT analysis. Priority of implementation of technologies using energy of renewable sources on leveling of threats to energy supply of the country is defined. The scientific and methodological approach to assessment of innovative development of Ukraine in the system of energy security using a modified model of SWOT analysis is substantiated. The advantage of the model is compactness of development due to the use of a single platform and efficiency of use due to the absence of the need to reload data into a specialized system. With the help of fractal analysis, a graphical interpretation of the comparison of SWOT analysis components in the innovative development of Ukraine in the system of energy security is built. The peculiarity of the proposed model lies in the fact that the data, having both qualitative and quantitative characteristics, are subject to analysis. As a conclusion, it is proposed to carry out an economic analysis of the factors influencing the prioritization of key technologies in the Ukrainian industry.Item Enhancement of Operational Reliability of Renewable Energy Conversion Equipment Within the Framework of Smart Grid Concept(Oktan Print, Praha, 2022) Hilorme, Tetiana; Nakashydze, Liliya; Liashenko, IrynaENG: Smart Grid technology is characterized by several innovative attributes that meet the innovative needs of the energy market. The performed content analysis allows to form a sequence of stages of development and design of the concept “Smart Grid”. Building a model of energy management system based on the use of Blockchain technology contributes to the decentralization of production and supply of energy based on renewable and traditional sources. Prospects for the use of Blockchain technology in the energy sector have significant potential: this technology is gradually expanding in related industries – a global energy network is being formed.Item Management of Innovative Energy Efficient Technologies in the Conditions of Sustainable Development(Ljubljana School of Business, Ljubljana, Slovenia, 2022) Hilorme, Tetiana; Nakashydze, Liliya; Liashenko, IrynaENG: Irreversible depletion of the world's hydrocarbon reserves, rising energy prices, environmental pollution problems – all this is forcing most developed countries to set their own energy trategies aimed at developing alternative energy. Thus, there is need to develop theoretical principles and practical recommendations for the formation of the concept of energy saving technology management in view of compliance with the conceptual principles of sustainable development, namely focusing on carbon-free energy technologies. The analysis and prospects of development of the state’s energy platform on the basis of postulates of sustainable development are carried out. It is proved that the introduction of models for the development of energy efficient technologies "Energy Efficiency +" and "New Paradigm - Power Market" will allow Ukraine to make a technological breakthrough. The scientific and methodological approach to improving the management system of energy resources distribution in accordance with the requirements of alpha stakeholders, especially industrial enterprises, according to certain parameters at the stage of Industry 4.0 in the conditions of communication environment constraints energy saving.Item The Model for Forecasting Sales of Energy Supply Systems Based on Renewable Energy Sources(Сумський державний університет, 2023) Hilorme, Tetiana; Nakashydze, Liliya V.; Liashenko, IrynaENG: Building an effective model for forecasting sales of products (works, services) allows enterprises to achieve the desired level of competitiveness. It is determined that the most relevant for industrial enterprises, engaged in the sale of energy supply systems based on renewable energy sources, are economic and mathematical methods that take into account the seasonality factor. The purpose of the article is to build a model for forecasting sales of energy supply systems based on renewable energy sources. The main research method is correlation and regression analysis. The article substantiates a model for forecasting the sale of energy supply systems to economic agents by industrial enterprises, which is based on determining the functional relationship between the seasonality factor (seasonal component, harmonic component of the model) and the objective function of ensuring an effective time sequence of management decisions/measures and which, unlike the existing ones, takes into account the duration of the seasonality factor, which increases the efficiency of management decisions by optimizing the time lag between their adoption and implementation. As a conclusion, the elasticity coefficient for energy saving costs in order to ensure the competitiveness of industrial enterprise products reaches 100 times the value.Item Substantiating the Criteria of Choosing Project Solutions for Climate Control Systems Based on Renewable Energy Sources(ПП «Технологічний Центр», Харків, 2020) Nakashydze, Liliya; Hilorme, Tetiana; Nakashydze, IrynaENG: The choice of project solutions for systems of providing climatic conditions in premises, based on different types of renewable energy sources, was substantiated. The means proposed to solve project tasks, imply the use of the interaction between different stakeholders, the number of subsystems necessary for effective functioning in the open system, that is taking into account the synergetic effect. It was proved that the introduction of complex climate control and energy supply system will allow uniting the functions inherent to disparate engineering systems, and ensure the transformation and redistribution of various types of energy flows, which will minimize operating costs. The hierarchical structure of the problem of approval of alternative project solutions of the climatic systems based on the Analytic Hierarchy Process method was constructed, which allows obtaining a set of optimal variants. The application of the corresponding tool apparatus of Data Envelopment Analysis enables constructing a system of evaluation of the energy efficiency of projects of complex climatic control and power supply systems using different types of renewable energy sources. The functional intended to select the optimum variant of a project solution of the climate control and energy supply system was constructed. The proposed project solutions were examined from the position of determining the minimization of the total consumption of energy resources and operating costs of three alpha-stakeholders. The proposed indicator of relative integrated energy efficiency allows making an optimum choice of complex systems with disparate input and output characteristicsItem Substantiation for the Selection of Parameters for Ensuring Electrothermal Protection of Solar Batteries in Spacecraft Power Systems(РС Тесhnology Сеntеr, Kharkiv, Ukraine, 2022) Hilorme, Tetiana; Nakashydze, Liliya V.; Mazurik, Stanislav; Gabrіnets, Volodymyr O.; Kolbunov, Vadim; Gomilko, IgorENG: A relevant scientific-practical issue related to the sustainable development of outer space is the selection of optimal parameters of solar panels for the uninterrupted supply of energy in the power plants of spacecraft. It has been determined that advancing energy-efficient technologies is a prerequisite for ensuring stable space activities. The decision-making process regarding the choice of alternative options for ensuring the electrothermal protection of solar panels in the power plants of spacecraft occurs under the conditions of uncertainty and various risks. A methodical approach to assessing the effectiveness of options for building electrothermal protection systems for solar panels in the power plants of spacecraft has been devised. The hierarchical structure of the problem about approving of the choice of electrothermal protection of solar panels has been constructed on the basis of the method of analytical hierarchical process, which makes it possible to derive a set of optimal options. Five alternative options for electrothermal protection of solar panels have been chosen, which, unlike existing ones, take into consideration the phases of the life cycle, namely, the period of active operation. The selection of criteria for choosing the parameters of ectrothermal protection of solar panels in the power installations of spacecraft has been substantiated: ensuring the smooth operation of solar panels; availability of service in emergencies; the life cycle of solar panels; the cost of solar panels; technical safety; mass-size indicators. It is argued that the chosen optimal alternative “Solar panels with protection on the basis of self-resetting fuses” could prolong the active life cycle and, as a result, reduce the number of repairs (current and overhaul) of solar panels in space activities. Owing to the use of this option, positive results could be achieved such an increase in the active life cycle by 20 %, as well as an increase in technical safety by 24 %.