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Number of results: 11
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Abstract

The article presents a synthetic analysis of the crude oil market in Poland. As of today, this safety is provided mainly on the basis of native lignite and hard coal resources. However, the analysis of the hard coal market conducted by the authors indicates that the carried out mining restructuring (among others) led to an excessive reduction of mining volume and employment level in the hard coal mining sector. This led to a precedent situation when Poland became an importer of this energy carrier. In addition, the European Union’s requirements for greenhouse gas emissions must be taken into account. In connection with the above, it is necessary to search for new energy sources or technologies that enable hard coal to meet the requirements. It is possible to apply the so-called clean coal technologies that allow the greenhouse gas emissions generated during coal combustion to be reduced. As of today, they are not used on a mass scale, because the use of this type of technology involves additional financial expenses. However, taking into account that technologies have been growing faster and faster, are modernized in a shorter time, making a breakthrough discovery took hundreds of years, now it is often a few months, clean coal technologies can become the optimal solution in the near future. It is also necessary to diversify the sources of obtaining imported energy carriers.

The article describes coal and crude oil in terms of their mutual substitution. The article is a continuation of research conducted by the authors. Previous publications presented considerations on analogous topics related to natural gas and renewable energy sources. The crude oil market in Poland was analyzed and forecasts for oil extraction and the demand in the world and Poland by 2023 were presented. The SARIMA model was also created. The model made it possible to obtain oil an prices forecast.

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Authors and Affiliations

Aurelia Rybak
ORCID: ORCID
Anna Manowska
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Abstract

Current practice of waste generation and management in Ukraine has led to an increase in the area of landfills and a loss of the beneficial potential of waste. Today, territorial communities in Ukraine have received enormous new powers within the framework of decentralization, in particular, waste management is now under their jurisdiction. In order to implement the National Waste Management Strategy in Ukraine 2030 and the National Waste Management Plan 2030, communities need to activate the areas of effective disposal of household solid waste (HSW), and for this purpose it is necessary to take into account European norms and standards in this area, as well as share successful Ukrainian and foreign experience. The aim of the study is to analyze a successful case of waste management of a separate community in Ukraine (Illintsi United Territorial Community) as an example for other communities, as well as to develop guidelines for bioenergy recycling of waste in the community under the study with the production of RDF fuel and biogas in order to provide energy resources and improve the condition of the environment. To achieve this goal, there were used the following methods: monographic, deductive, inductive, analysis and synthesis, economic analysis, graphic and tabular, statistical, as well as the case-study method. The conducted research confirmed the growth of waste generation volumes in Ukraine and their limited beneficial use. The developed recommendations on the improvement of the household solid waste management based on the successful case of Illintsi Territorial Community and proposals for organizing the production of RDF fuel and biogas can become a strong basis for the development of communities on the basis of sustainability.
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Authors and Affiliations

Inna Honcharuk
1
ORCID: ORCID
Dina Tokarchuk
1
ORCID: ORCID
Yaroslav Gontaruk
1
ORCID: ORCID
Halyna Hreshchuk
2
ORCID: ORCID

  1. Vinnytsia National Agrarian University, Ukraine
  2. Lviv National University of Nature Management, Ukraine
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Abstract

The article aims to evaluate the Portuguese building stock energy policies and strategy for energy saving in buildings among the EU members. It was found out the average heat transfer coefficients of the main structural elements of Portuguese Buildings and analyzed the U-values of this elements considering different time periods.

The fundamentals of this study were funded by the Agency for Development and Innovation (ADI) and co-financed by the European Regional Development Fund (FEDER) through the Operational Program for Competitiveness Factors (POFC) assigned to the Building Physics and Construction Technology Laboratory with the reference SB Tool SPT_2011_4.

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Authors and Affiliations

J. Sousa
L. Bragança
M. Almeida
P. Silva
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Abstract

The main objective of this paper is (і) to determinate the energy sector as an important part of the resource economy in conditions of increasing epidemiological risks, and (іі) to present the potential of crisis management instruments to influence and strengthen the energy sector in Ukraine. This study uses expert assessments and monographic methods (for the assessment of crisis-management instruments) graphical methods Practical measures aimed at improving and reshaping the energy sector in Ukraine are defined by means of synthesis and economic analysis; statistical and interstate comparisons are used to analyze the Spanish experience of anti-crisis management measures in the post-COVID energy sector.
The study of the world electricity distribution issue shows its direct connection with the energy production source, including renewable energy use, which increased under the impact of COVID-19. The analysis of developed crisis-management systems provides the basis to propose measures to improve and reshape the energy sector in Ukraine. Thus, the results section represents findings to strengthen the energy sector, supporting crisis-management-system development in Ukraine.
The study is a part of a research cycle on energy-sector development, its management and financing. The proposed measures to improve and reshape the energy sector in Ukraine can be applied to specific energy-sector projects, the optimization of investments in the energy sector, as well as being used for the modeling of complex crisis-management systems of various spheres of the economy.
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Authors and Affiliations

Iuliia Gernego
1
Olena Liakhova
1
Mykhailo Dyba
1

  1. Kyiv National Economic University named after Vadym Hetman, Ukraine
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Abstract

The potential of wind energy in Ukraine is examined in this article. Possibilities of its use are analyzed, an analytical assessment of the potential for its use is performed, and prospects for the use of energy resources for the development of the wind energy market is substantiated. Reasons are provided for the advantages and disadvantages of wind energy, which should be combined into the following components.
The natural resource potential of Ukraine for the development of wind energy is analyzed. It has been confirmed that the wind energy potential of different territories of Ukraine is characterized by average annual wind speeds at the level of 7.0–8.5 m/s (on the continent – at heights of about 100 m, in water areas – about 50 m), which allows using megawatt-class wind turbines with annual coefficients of capacity utilization at the level of 0.3–0.4, which is quite efficient. The specific energy potential of wind energy in Ukraine is established, according to which, the territories of the country were grouped. It has been specified that the best places for locating wind power plants are areas with strong and constant winds, which can be found on the coast of the seas and in mountainous areas.
The situation with the production of energy resources in Ukraine is analyzed based on wind sources and means before the war. The advantages of wind energy development based on the improvement of legislative framework and promoting production of equipment for the operation of wind power plants in Ukraine are proven. The reasons for the potential of the wind energy market are stated and the main consumers of wind energy in Ukraine are outlined. The development of wind energy is considered as a method for energy independence of the national economy of Ukraine.
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Authors and Affiliations

Nataliia Antoniuk
1
ORCID: ORCID
Maryna Baldzhy
2
ORCID: ORCID
Oksana Perkhach
3
ORCID: ORCID

  1. Department of Philosophy, Economics and Management of Education, Rivne Regional Institute of Postgraduate Pedagogical Education, Rivne, Ukraine
  2. Department of Entrepreneurship and Tourism, Odessa National Maritime University, Ukraine
  3. Department of Administrative and Financial Management, Lviv Polytechnic National University, Ukraine
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Abstract

Increasing energy security in the face of rising energy demand and declining funding for fossil fuels has necessitated the diversification of energy supply and the shift to renewable energy. Sustainable management of energy supply is aimed at achieving a low-carbon intensity of production, especially in energy-intensive industries, including the mechanical-engineering industry. The article examines the possibility of shifting the current mechanical-engineering enterprise system and the technical, environmental and economic indicators of production to the new concept of the green economy, which will be an alternative to the further sustainable development of the industry. This article analyzes key approaches to energy conservation. An analytical model has been developed for calculating the energy risk of the mechanical-engineering enterprise and has built a context diagram of mechanical-engineering production, taking into account the environmental impact and the possibility of energy modernization, which allows the setting of strategic goals to ensure the sustainability of energy supply in the mechanical-engineering industry and develop the main principles of efficient enterprise activities in the context of increased risk. It has been proven that one of the criteria for increasing the profitability indicator is the adaptability of enterprises to external conditions and increasing alternative options for obtaining energy from our own autonomous sources.
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Authors and Affiliations

Inesa Mikhno
1
Oksana Redkva
2
ORCID: ORCID
Viktoriia Udovychenko
3
ORCID: ORCID
Oksana Tsimoshynska
4
ORCID: ORCID
Viktor Koval
5
ORCID: ORCID
Michał Kopacz
6
ORCID: ORCID

  1. National Aviation University, Kyiv, Ukraine
  2. Technical College of Ternopil Ivan Pul’uj National Technical University Ternopil, Ukraine
  3. Taras Shevchenko National University of Kyiv, Ukraine
  4. Interregional Academy of Personnel Management, Kyiv, Ukraine
  5. National Academy of Sciences of Ukraine, Ukraine
  6. Mineral and Energy Economy Research Institute of the Polish Academy of Sciences, Kraków, Poland
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Abstract

The article analyzes the structure of energy resources, as a result of which the reasons for their irrational use in the Ukrainian economy are revealed. It has been established that during 2014–2018 there was a decrease in demand for traditional types of fuel and energy resources (FER), except for coal. The components of the process of supply and consumption of fuel and energy resources have been formed and detailed, and an integrated approach to their rational use has been developed, which will reduce the loss of energy resources and increase their efficiency. The author’s approach is used in the form of visualized schemes for organizing the process of the rational use of energy resources, which will contribute to the implementation of an effective energy saving policy of the state, ensuring the competitive advantages of domestic enterprises, increasing their competitiveness, improving the economic and energy security of Ukraine. The expediency of constructing deterministic economic models for providing the Ukrainian economy according to different (adaptive and multiplicative) convolutions was substantiated and proved, on the basis of which a forecast and assessment of the energy independence of the Ukrainian economy until 2035, taking into account fuel and energy resources, was proposed. Based on the calculations, it was established that the state of energy independence of Ukraine is insufficient.
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Authors and Affiliations

Uliana Andrusiv
1
ORCID: ORCID
Halyna Zelinska
2
ORCID: ORCID
Olga Galtsova
3
ORCID: ORCID
Halyna Kupalova
4
ORCID: ORCID
Nataliia Goncharenkо
4
ORCID: ORCID

  1. Department of Economics Theory and Management, Ivano-Frankivsk National Technical University of Oil and Gas, Ukraine
  2. Ivano-Frankivsk National Technical University of Oil and Gas, Ukraine
  3. Classical Private University, Ukraine
  4. Taras Shevchenko National University of Kyiv, Ukraine
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Abstract

Cellular mobile communication networks are experiencing an important evolution with the emerging deployment of 5G networks and the successive decline in the use of previous generations in the years to come. In parallel, policies promoting ecological transition are gaining social impact and economic interest and this seems to be the trend in the near future. In the telecommunications market, the shift between two dominant generations could be an important opportunity to introduce renewable energy sources to green the sector, reducing the carbon footprint of the world-wide extended activity. This work analyses the current situation and provides an insight into the possibilities to incorporate renewable energy supplies, specifically photovoltaics (as it seems to be the most promising among clean electric sources), perhaps combined with small wind turbines in off-grid systems. Paper also compares the characteristics of standard facilities in Spain and Poland, two different European countries in terms of weather and insolation hours.
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Authors and Affiliations

Iñigo Cuiñas
1
ORCID: ORCID
Katarzyna Znajdek
2
ORCID: ORCID
Maciej Sibiński
2
ORCID: ORCID

  1. Dept. of Signal Theory and Communications, Universidade de Vigo, atlanTTic Research Center, 36310 Vigo, Spain
  2. Dept. of Semiconductor and Optoelectronic Devices, Lodz University of Technology, Wólczańska 211–215, 90-001 Lodz, Poland
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Abstract

This article discusses the advantages of using renewable energy resources (RES), analyzes the resource potential of Ukraine in terms of energy production and substantiates the benefits of using RES for energy security. It explores the potential of the existing technological infrastructure for the sustainable development of the energy industry in Ukraine. It also identifies the structure of energy capacities and the technically achievable potential of energy production from RES and alternative fuels as a basis for different scenarios for the prospective development of alternative energy in Ukraine.
The development of solar, wind and bioenergy is analyzed in line with policy recommendation traced with the dynamics of the final volume of energy consumption in Ukraine.
This enables improvements to the methodology for determining the target parameters of energy security with the available resource potential, which forms the basis for the dynamics models of integral indices of components of energy security. These models demonstrate the current state of energy security of Ukraine in terms of resource potential, economic sufficiency, and institutional and organizational support for the use of energy resources.
The article suggests the key management directions of energy policy in Ukraine and the mechanism of emergency response to the shortage of energy supply. The development of alternative energy is considered as a path to the energy independence of the national economy of Ukraine and Europe.
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Authors and Affiliations

Nataliia Antoniuk
1
ORCID: ORCID
Joanna Kulczycka
2
ORCID: ORCID

  1. Department of Philosophy, Economics and Management of Education, Rivne Regional Institute of Postgraduate Pedagogical Education, Ukraine
  2. Mineral and Energy Economy Research Institute, Polish Academy of Sciences, AGH University of Science and Technology, Kraków, Poland
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Abstract

Blockchain is a technology, which could revolutionize many industries in the future. A system like that is based on a chain of blocks that is used for storing and transferring various data, forming a decentralized ledger. Although various fundamental projects based on the blockchain system in the energy industry are in their early stage of development, as well as other solutions, applications of blockchain technology in the broadly understood power engineering sector are considered to have a very large potential. This paper presents a brief description of the blockchain technology, its general operating principle and the possibilities it brings. The next section of the article contains a characterization of two exemplary and possible blockchain technology applications, which in the perspective of time may have a significant impact on the power engineering sector. The first solution is related to carrying out energy transactions, which could be conducted in an easy way directly between energy producers and consumers. Thanks to blockchain technology, this could lead to a partial decentralization in that area. The second proposed example concerns energy resources origin tracking, which would allow fixed origin attributes and parameters affecting the environment to be assigned to the generated energy. By implementing that solution, it would be possible to construct a fuel footprint of individual generating units. The article also mentions examples of other potential applications of blockchain technology in the power engineering sector.

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Authors and Affiliations

Daniel Mrowiec
Michał Sołtysik
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Abstract

This paper introduces a fractional-order PD approach (F-oPD) designed to control a large class of dynamical systems known as fractional-order chaotic systems (F-oCSs). The design process involves formulating an optimization problem to determine the parameters of the developed controller while satisfying the desired performance criteria. The stability of the control loop is initially assessed using the Lyapunov’s direct method and the latest stability assumptions for fractional-order systems. Additionally, an optimization algorithm inspired by the flight skills and foraging behavior of hummingbirds, known as the Artificial Hummingbird Algorithm (AHA), is employed as a tool for optimization. To evaluate the effectiveness of the proposed design approach, the fractional-order energy resources demand-supply (Fo-ERDS) hyperchaotic system is utilized as an illustrative example.
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Authors and Affiliations

Ammar Soukkou
1
Yassine Soukkou
2
Sofiane Haddad
1
Mohamed Benghanem
3
Abdelhamid Rabhi
4

  1. Renewable Energy Laboratory, Faculty of Science and Technology, Department of Electronics, University of MSBY Jijel, BP. 98, Ouled Aissa, Jijel, Algeria
  2. Research Center in Industrial Technologies CRTI, P. O. Box. 64, Cheraga 16014, Algiers, Algeria
  3. Physics Department, Faculty of Science, Islamic University of Madinah, Madinah, KSA
  4. Modeling, Information and Systems Laboratory, University of Picardie Jules Verne, Amiens, France.

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