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Prof. Jarosław Brodny
Faculty of Organization and Management, Silesian University of Technology, Str. Roosevelta 26-28, 41-800 Zabrze, Poland

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0 Environmental Engineering
0 Mechanical Engineering
0 Mining
0 Production Engineering
0 Safety Engineering

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Industrial automation system
Industry 4.0
Operation and construction of machines

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Journal article
Published: 21 August 2021 in Science of The Total Environment
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The growing social awareness of environmental protection entails that the assumptions of the sustainable development idea are being implemented in various economic sectors at an increasingly fast pace. One of them is the power industry, the sustainable development of which is now becoming a priority in economic policy for many countries. The paper refers to this issue by developing methodology for both studying and assessing the level of sustainable energy development in the Central and Eastern European Countries. The study involved 21 indicators characterizing the sustainable energy development of these countries in the areas of energy, environmental, economic, and social security for 2008 and 2018. When considering the complexity of the subject matter and the wide scope of the research, four methods of multi-criteria data analysis (TOPSIS, VIKOR, MOORA and COPRAS) were used. For each of them, based on the adopted criteria, synthetic indicators were determined, which allowed for the assessment of the level of sustainable energy development in the CEE countries. Weights for the adopted indicators were identified based on the Shanon's Entropy method. Afterwards, an unambiguous assessment of the level of sustainable energy development of the CEE countries was performed. The results showed that in 2008 and 2018, the best ranking position was held by Latvia and Croatia, and the worst ranking position was held by Poland and Bulgaria. The method of multidimensional scaling made it possible to determine the positions of studied countries on scatter plots in two-dimensional space, which showed differences between individual CEE countries. All in all, the applied methods allowed for a considerably broad assessment of the level of sustainable energy development of the CEE countries.

ACS Style

Jarosław Brodny; Magdalena Tutak. Assessing sustainable energy development in the central and eastern European countries and analyzing its diversity. Science of The Total Environment 2021, 801, 149745 .

AMA Style

Jarosław Brodny, Magdalena Tutak. Assessing sustainable energy development in the central and eastern European countries and analyzing its diversity. Science of The Total Environment. 2021; 801 ():149745.

Chicago/Turabian Style

Jarosław Brodny; Magdalena Tutak. 2021. "Assessing sustainable energy development in the central and eastern European countries and analyzing its diversity." Science of The Total Environment 801, no. : 149745.

Journal article
Published: 23 July 2021 in Journal of Cleaner Production
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Sustainable energy security is an absolute priority in the European Union (EU) policy. Therefore, the issue of ensuring climate-neutral energy security is of great importance, especially in the “New” EU countries, where the energy transition began later than in the rest of the countries (the so-called Old EU). This group includes the Visegrad (V4) countries (Poland, the Czech Republic, Slovakia, and Hungary), which joined the EU in 2004. Their level of sustainable energy development differs significantly from other member states. However, in order to achieve the objectives of the EU climate strategy, these countries also need to meet the adopted requirements. Therefore, the aim of the study was to assess sustainable energy security in these countries, taking into account energy, climate, economic and social aspects (dimensions) over the period of 11 years (2008–2018). The analysis was based on the selected set of 14 indicators characterizing the adopted dimensions. The entropy-weight and TOPSIS methodology was utilized to perform very precise analyses for the years and dimensions in question. The broadly conducted analyses showed that the V4 countries are highly differentiated, practically in every examined area. The results showed that in the studied period, the highest level of sustainable energy security was reported for the Czech Republic, and the lowest level for Poland. The findings are an exceptionally valuable source of information about the studied countries and should be used for future activities to ensure their energy security in, at least, an environmentally neutral manner.

ACS Style

Jarosław Brodny; Magdalena Tutak. The comparative assessment of sustainable energy security in the Visegrad countries. A 10-year perspective. Journal of Cleaner Production 2021, 317, 128427 .

AMA Style

Jarosław Brodny, Magdalena Tutak. The comparative assessment of sustainable energy security in the Visegrad countries. A 10-year perspective. Journal of Cleaner Production. 2021; 317 ():128427.

Chicago/Turabian Style

Jarosław Brodny; Magdalena Tutak. 2021. "The comparative assessment of sustainable energy security in the Visegrad countries. A 10-year perspective." Journal of Cleaner Production 317, no. : 128427.

Journal article
Published: 23 June 2021 in Energies
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The global economic development is, to a great extent, dependent on access to large amounts of cheap energy sources. The growing social awareness of ecology and the enormous damage to the Earth’s ecosystem due to the production of energy from conventional sources have forced fundamental changes in the energy sector. Renewable energy is considered to be an opportunity for such changes. The current state of the art allows such changes to be made without restricting economic development. Therefore, activities related to the energy transition are being taken all over the world. The European Union has definitely managed to achieve the most tangible effects in this regard. This article presents the findings of the research aimed at presenting the current state of renewable energy in the European Union and analyzing the changes reported in this sector in the last decade. The research was carried out using a selected set of 11 indicators characterizing renewable energy in individual countries. These indicators were selected on the basis of literature review and own studies of the state of renewable energy and its development prospects. Based on these indicators, changes in the energy structure of individual European Union countries between 2008–2018 were determined. The study is divided into two main stages. The principal components analysis (PCA) was used for the first analysis. In turn, the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) was adopted to assess the level of renewable energy development in the European Union countries. Both these methods and the extended statistical analysis were applied to determine the state of renewable energy development in the European Union countries in the studied period and to divide the Member States into classes with different levels of development. The results of the study showed that the EU countries are characterized by significant differences in the development of RES during the period in question. The unquestionable leaders in this respect are Sweden, Austria, Finland, and Latvia. Based on the findings, it is possible to evaluate the effects of activities related to renewable energy development and to prepare assumptions for future activities. Additionally, both the research and its findings broaden the knowledge of the directions of renewable energy development in individual European Union countries. This is particularly important in the context of changes related to the need to reduce harmful substance emissions and the implementation of the European Green Deal idea.

ACS Style

Jarosław Brodny; Magdalena Tutak; Peter Bindzár. Assessing the Level of Renewable Energy Development in the European Union Member States. A 10-Year Perspective. Energies 2021, 14, 3765 .

AMA Style

Jarosław Brodny, Magdalena Tutak, Peter Bindzár. Assessing the Level of Renewable Energy Development in the European Union Member States. A 10-Year Perspective. Energies. 2021; 14 (13):3765.

Chicago/Turabian Style

Jarosław Brodny; Magdalena Tutak; Peter Bindzár. 2021. "Assessing the Level of Renewable Energy Development in the European Union Member States. A 10-Year Perspective." Energies 14, no. 13: 3765.

Journal article
Published: 28 May 2021 in Applied Sciences
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This article evaluates changes in the organization of transport on urban roads through the transport model in the OmniTRANS program. The selected location for the case study in this article is the internal traffic circuit of Kosice, which borders the historic core of the city. Currently, the proposal is being prepared to change the organization of transport in the town’s monument reserve and its protection zone. The transition to a one-way road around the historic center is being considered. Before introducing the new proposed change in traffic, it is necessary to test this proposed change and determine how it will affect the traffic situation. The aim of this article is to compare the current transport organization with the proposed change in transport organization in terms of traffic intensity. The use of transport models in the world is not a new concept, but it is often not used in the conditions of the Slovak Republic. However, traffic and simulation models can save money and time and avoid possible unexpected problems before putting the proposed changes into practice. Solving the given problem is an excellent benefit for transport planning and traffic engineering for Kosice and other places with a similar arrangement of the historical center and a similar number of inhabitants. The proposed changes can be tested by modelling traffic and then to adjust them when the cons are identified. Thanks to the traffic simulation model, it is possible to compare the capacity load of the inner traffic circuit of the city before and after the introduction of the one-way circuit.

ACS Style

Peter Bindzar; Janka Saderova; Marian Sofranko; Peter Kacmary; Jaroslaw Brodny; Magdalena Tutak. A Case Study: Simulation Traffic Model as a Tool to Assess One-Way vs. Two-Way Traffic on Urban Roads around the City Center. Applied Sciences 2021, 11, 5018 .

AMA Style

Peter Bindzar, Janka Saderova, Marian Sofranko, Peter Kacmary, Jaroslaw Brodny, Magdalena Tutak. A Case Study: Simulation Traffic Model as a Tool to Assess One-Way vs. Two-Way Traffic on Urban Roads around the City Center. Applied Sciences. 2021; 11 (11):5018.

Chicago/Turabian Style

Peter Bindzar; Janka Saderova; Marian Sofranko; Peter Kacmary; Jaroslaw Brodny; Magdalena Tutak. 2021. "A Case Study: Simulation Traffic Model as a Tool to Assess One-Way vs. Two-Way Traffic on Urban Roads around the City Center." Applied Sciences 11, no. 11: 5018.

Review article
Published: 26 May 2021 in Process Safety and Environmental Protection
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The safety of the coal production process, which in the coming years will continue to be one of the basic energy resources in many countries worldwide, has a significant impact on its efficiency. The random character of many hazardous phenomena accompanying this process requires the application of both modern and safe methods to study these phenomena. Model studies based on the Computational Fluid Dynamics (CFD) method are known to have such features. They enable the analysis of very complex and hazardous phenomena, which are hard or even impossible to investigate with the use of other methods. Therefore, this article focuses on the analysis of the state of the art in terms of the Computational Fluid Dynamics application in research on ventilation safety during underground hard coal mining. It was assumed that CFD-based studies may significantly improve the safety of the mining production process. For this purpose, a systematic literature review was carried out, which – according to the adopted methodology – involved four research questions. The review included scientific publications (articles) contained in the two most prestigious databases, i.e., the Web of Science and the Scopus. In accordance with the adopted search criteria, articles that used the Computational Fluid Dynamics method and focused on ventilation safety during underground coal mining were selected. The meta-analysis of these data made it possible to identify seven thematic areas undertaken in these publications. The following paper presents a list of articles assigned to these groups with selected items being discussed. On the basis of the conducted research, comprehensive answers to the research questions were provided. The results systematize the knowledge of CFD application in research on ventilation safety in mining. Also, they are a valuable source of information for future researchers and engineers concerned with the safety of the mining production process. Moreover, potential directions of further research in the field of possible Computational Fluid Dynamics applications were indicated to improve the safety of the process in question.

ACS Style

Jarosław Brodny; Magdalena Tutak. Applying computational fluid dynamics in research on ventilation safety during underground hard coal mining: A systematic literature review. Process Safety and Environmental Protection 2021, 151, 373 -400.

AMA Style

Jarosław Brodny, Magdalena Tutak. Applying computational fluid dynamics in research on ventilation safety during underground hard coal mining: A systematic literature review. Process Safety and Environmental Protection. 2021; 151 ():373-400.

Chicago/Turabian Style

Jarosław Brodny; Magdalena Tutak. 2021. "Applying computational fluid dynamics in research on ventilation safety during underground hard coal mining: A systematic literature review." Process Safety and Environmental Protection 151, no. : 373-400.

Journal article
Published: 22 April 2021 in Energies
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Rational decision-making requires assessing the advantages and disadvantages of options, including nonmarket effects (such as environmental effects). This also applies to strategic decision-making in the industrial sector to select alternative renewable energy source (RES). Often, a variety of criteria can be used to select a renewable energy source, whereas no ideal family of criteria for renewable energy selection for industry has been defined in the literature. It was concluded that there is a need to support the actions of industrial development based on RES, which will contribute significantly to overcoming the limitations of the negative effect on the environment in terms of greenhouse gas emissions. There is a clear need for a systematic and polyvalent multicriteria approach to planning in industry. Therefore, a method for choosing the preferred renewable source of electricity for industry has been developed, which considers key criteria of RES choice: Expert opinions, the costs of obtaining the energy and maintaining energy installations, and the volume of electricity from RES. This article offers a modified multicriteria selection method based on a fuzzy analytic hierarchy process (fuzzy AHP) and the technique for preference by similarity to an ideal solution (TOPSIS), integrated with a qualitative price analysis (ACJ). This new method was tested through a case study on selecting a preferred RES in Polish industrial conditions. The research results indicate that the proposed method of choosing the preferred renewable energy source can be used in industrial enterprises that strive to meet their energy needs in accordance with the principles of social responsibility.

ACS Style

Robert Ulewicz; Dominika Siwiec; Andrzej Pacana; Magdalena Tutak; Jarosław Brodny. Multi-Criteria Method for the Selection of Renewable Energy Sources in the Polish Industrial Sector. Energies 2021, 14, 2386 .

AMA Style

Robert Ulewicz, Dominika Siwiec, Andrzej Pacana, Magdalena Tutak, Jarosław Brodny. Multi-Criteria Method for the Selection of Renewable Energy Sources in the Polish Industrial Sector. Energies. 2021; 14 (9):2386.

Chicago/Turabian Style

Robert Ulewicz; Dominika Siwiec; Andrzej Pacana; Magdalena Tutak; Jarosław Brodny. 2021. "Multi-Criteria Method for the Selection of Renewable Energy Sources in the Polish Industrial Sector." Energies 14, no. 9: 2386.

Journal article
Published: 22 March 2021 in Energies
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The concept of sustainable development integrates activities in the economic, environmental and social areas. Energy policy, which is very closely linked to climate protection, is of key importance for achieving the goals of the concept in question. All these elements are connected by the European Green Deal strategy and Agenda 2030. Their implementation requires the evaluation of previous actions undertaken within the framework of sustainable development and the diagnosis of the current state. Therefore, this article presents the results of such research in relation to the key industry connected with this process, which is the energy sector. The research methodology was based on the analysis of 14 indicators that characterize four basic areas (dimensions) related to energy and climate sustainability. These indicators concern energy and climate as well as social and economic issues. This approach makes it possible to comprehensively assess the actions taken so far in the implementation of sustainable economic development in the energy and climate area in the European Union (EU) countries. The entropy-complex-proportional-assessment (COPRAS) methodologies, which belong to the group of multiple criteria decision-making methods, were used for this study. The conducted research allowed for the assessment of the changes in the EU countries in terms of energy and climate sustainability between 2009–2018. In addition, the effects of the introduced changes in individual years and in relation to the studied areas (dimensions) were also evaluated. Based on the results, considering the adopted criteria, the EU countries were divided into groups similar to the level of energy and climate sustainability. The results constitute a valuable set of data, which allows for a wide and in-depth multicriteria analysis. This allows for a very objective and broad assessment of the effects of sustainable development policies in the EU countries and the current state in the context of the European Green Deal strategy and Agenda 2030.

ACS Style

Magdalena Tutak; Jarosław Brodny; Peter Bindzár. Assessing the Level of Energy and Climate Sustainability in the European Union Countries in the Context of the European Green Deal Strategy and Agenda 2030. Energies 2021, 14, 1767 .

AMA Style

Magdalena Tutak, Jarosław Brodny, Peter Bindzár. Assessing the Level of Energy and Climate Sustainability in the European Union Countries in the Context of the European Green Deal Strategy and Agenda 2030. Energies. 2021; 14 (6):1767.

Chicago/Turabian Style

Magdalena Tutak; Jarosław Brodny; Peter Bindzár. 2021. "Assessing the Level of Energy and Climate Sustainability in the European Union Countries in the Context of the European Green Deal Strategy and Agenda 2030." Energies 14, no. 6: 1767.

Journal article
Published: 16 December 2020 in Energies
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The concept of sustainable economic development takes into account economic, social and environmental aspects and strives to achieve balance between them. One of the basic areas where it is required to revalue the current views on sustainable development is energy. The growing public awareness of environmental protection forces changes in this industry. Despite the global nature of this problem, its solution is perceived differently in various regions of the world. The unquestionable leader in introducing the idea of sustainable development economy is the European Union, where the energy sector is of key importance for the effectiveness of this process. In order to assess the sustainable energy development of the European Union countries, studies were conducted based on 13 selected indicators characterizing this sector in terms of energy, economy and environment. In order to assess the specificity of the European Union countries, these indicators were additionally compared to the gross domestic product value and the number of inhabitants of individual countries. For these cases, multi-criteria analyses were carried out using the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method. It allowed the authors to rank the European Union countries in terms of their adaptation to a sustainable energy economy. Based on the determined values of indicators versus the gross domestic product and the number of inhabitants of the countries in question, these countries were also divided into similar groups with the use of the Kohonen artificial neural networks. These groups can pursue a common energy policy in the field of sustainable development. The aim of the research was to present a new approach to the assessment of sustainable energy development of the European Union countries. The extensive ratio analysis (13 indicators of the sustainable energy development), including the economic and demographic potential of individual countries, and the use of modern tools made it possible to acquire new knowledge in the field of sustainable energy development in the European Union countries. The results should be utilized for more effective sustainable energy development of the European Union countries.

ACS Style

Magdalena Tutak; Jarosław Brodny; Dominika Siwiec; Robert Ulewicz; Peter Bindzár. Studying the Level of Sustainable Energy Development of the European Union Countries and Their Similarity Based on the Economic and Demographic Potential. Energies 2020, 13, 6643 .

AMA Style

Magdalena Tutak, Jarosław Brodny, Dominika Siwiec, Robert Ulewicz, Peter Bindzár. Studying the Level of Sustainable Energy Development of the European Union Countries and Their Similarity Based on the Economic and Demographic Potential. Energies. 2020; 13 (24):6643.

Chicago/Turabian Style

Magdalena Tutak; Jarosław Brodny; Dominika Siwiec; Robert Ulewicz; Peter Bindzár. 2020. "Studying the Level of Sustainable Energy Development of the European Union Countries and Their Similarity Based on the Economic and Demographic Potential." Energies 13, no. 24: 6643.

Journal article
Published: 18 September 2020 in Energies
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Various types of natural hazards are inextricably linked to the process of underground hard coal mining. Ventilation hazards—methane and spontaneous combustion of coal—are the most dangerous; they pose a major threat to the safety of the workers and decrease the effectiveness of the whole coal production process. One of the methods designed to limit the consequences of such hazards is based on the selection of a ventilation system that will be suitable for the given mining area. The article presents a case study of an active longwall area, where—due to increasing ventilation hazard (methane and spontaneous combusting of coal)—the whole system was rebuilt. The U-type ventilation system was used in the initial stage of the extraction process, however, it often generated methane in amounts that exceeded the allowable values. Consequently, such conditions forced the change of the ventilation system from a U–type to Y–type system. The new system was installed during the ongoing mining process, unlike the usual practice. The article presents the results of tests on mine gas concentrations and descriptive statistics for both types of ventilation system. The results clearly demonstrate that the U-type longwall ventilation system, in the case of high methane release hazard, prevents safe and effective operation. At the same time, the use of this system limits the carbon oxidation reactions in the goaf, leading to spontaneous heating and combustion, which is confirmed by the low concentrations of gases—by-products of these reactions. In turn, the use of the Y-type longwall ventilation system ensures safe and effective operation in areas with high methane release hazard, but at the same time deteriorates the safety associated with the spontaneous combusting of coal. The presented case—both from a scientific and practical perspective—is quite interesting and greatly broadens the knowledge in the scope of an efficient ventilation system for underground workings.

ACS Style

Magdalena Tutak; Jarosław Brodny; Dawid Szurgacz; Leszek Sobik; Sergey Zhironkin. The Impact of the Ventilation System on the Methane Release Hazard and Spontaneous Combustion of Coal in the Area of Exploitation—A Case Study. Energies 2020, 13, 4891 .

AMA Style

Magdalena Tutak, Jarosław Brodny, Dawid Szurgacz, Leszek Sobik, Sergey Zhironkin. The Impact of the Ventilation System on the Methane Release Hazard and Spontaneous Combustion of Coal in the Area of Exploitation—A Case Study. Energies. 2020; 13 (18):4891.

Chicago/Turabian Style

Magdalena Tutak; Jarosław Brodny; Dawid Szurgacz; Leszek Sobik; Sergey Zhironkin. 2020. "The Impact of the Ventilation System on the Methane Release Hazard and Spontaneous Combustion of Coal in the Area of Exploitation—A Case Study." Energies 13, no. 18: 4891.

Journal article
Published: 02 September 2020 in Energies
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One of the major natural hazards occurring during the process of mining exploitation are endogenous fires. They cause very large material losses and constitute a threat to the health and life of the workers. Such fires usually start and develop in the goafs. The remaining coal and the oxygen-containing air flowing at a certain rate may lead to endogenous fires. The basic element of the assessment of the occurrence of an endogenous fire and the degree of its development is the chemical composition of the air flowing out of the longwall and the goafs. The monitoring of this composition also makes it possible to assess the severity of such a fire. The damage that can be caused by the endogenous fire requires scientific and experimental research being carried out on a wide scale in order to limit its occurrence and development. All papers and research mentioned in the paper aim to find a tool that will help to control the fires. The paper discusses the development of a new and original method of combating the threat of endogenous fires. It is based on the installation designed to feed an ash and water mixture or an ash and water mixture with carbon dioxide to goafs. The foundation of the paper is a method based on a vast depth of expertise and knowledge gained by the authors in the field of combating endogenous fires. The developed installation prepares and transports ash and water mixtures together with carbon dioxide to the zones with high probability of endogenous fires. The mixture is a preparation of the surface of a mine, and later, it is transported underground by pipelines to the goafs where a high level of the fire hazard was identified. The construction of the system and the composition of the mixture used are both original solutions; their practical application limited the process of spontaneous heating of coal. Monitoring the chemical composition of gases in the air of the goafs made it possible to control the effects of applied measures; it proved that carbon dioxide used as an inert gas disturbs the process of carbon oxidation, and the water and ash mixture limits the inflow of the air with oxygen. The advantage of the method is particularly evident in the case of the exploitation of deposits where coal has a short incubation time. This original approach allows for a better and more effective response to endogenous fires.

ACS Style

Dawid Szurgacz; Magdalena Tutak; Jarosław Brodny; Leszek Sobik; Olga Zhironkina. The Method of Combating Coal Spontaneous Combustion Hazard in Goafs—A Case Study. Energies 2020, 13, 4538 .

AMA Style

Dawid Szurgacz, Magdalena Tutak, Jarosław Brodny, Leszek Sobik, Olga Zhironkina. The Method of Combating Coal Spontaneous Combustion Hazard in Goafs—A Case Study. Energies. 2020; 13 (17):4538.

Chicago/Turabian Style

Dawid Szurgacz; Magdalena Tutak; Jarosław Brodny; Leszek Sobik; Olga Zhironkina. 2020. "The Method of Combating Coal Spontaneous Combustion Hazard in Goafs—A Case Study." Energies 13, no. 17: 4538.

Journal article
Published: 20 August 2020 in Multidisciplinary Aspects of Production Engineering
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The article examines the influence of migration processes on the formation and development of production capacities of countries. It is emphasized that population migration significantly affects the social and economic indicators of the country; under such influence, they can have both positive and negative trends. The article presents the main positive and negative consequences of population migration for donor countries, recipient countries, and for migrants themselves. It is proved that one of the most popular and promising is educational migration, which, under certain favorable circumstances, makes it possible to form highly qualified personnel, deepen international cooperation between higher education institutions of different countries, and strengthen the joint use of educational and scientific potential. The attention is focused on the fact that Ukraine today acts as a donor country and a leader in the number of young people who travel to study in Poland. It is indicated that in order to effectively regulate migration processes by the state, it is appropriate to ensure interaction between higher education institutions of different countries, namely, in the sphere of: a double-degree program, foreign internships, and holding joint international conferences. Using the example of Ivano-Frankivsk National Technical University of Oil and Gas and Ternopil National Economic University, it is shown how such interaction is implemented in practice and its consequences. The conclusions are based on the fact that educational migration is one of the most favorable types of migration. With its proper control by the state, it is possible to stimulate the development of the production industry in countries and improve social and economic indicators.

ACS Style

Larysa Mosora; Vitalii Tolubyak; Jarosław Brodny; Liubomyr Romanyshyn; Yurii Mosora. Migration Factor of Stimuling the Development of the Production Industry in Ukraine and Poland. Multidisciplinary Aspects of Production Engineering 2020, 3, 732 -744.

AMA Style

Larysa Mosora, Vitalii Tolubyak, Jarosław Brodny, Liubomyr Romanyshyn, Yurii Mosora. Migration Factor of Stimuling the Development of the Production Industry in Ukraine and Poland. Multidisciplinary Aspects of Production Engineering. 2020; 3 (1):732-744.

Chicago/Turabian Style

Larysa Mosora; Vitalii Tolubyak; Jarosław Brodny; Liubomyr Romanyshyn; Yurii Mosora. 2020. "Migration Factor of Stimuling the Development of the Production Industry in Ukraine and Poland." Multidisciplinary Aspects of Production Engineering 3, no. 1: 732-744.

Journal article
Published: 13 August 2020 in Journal of Cleaner Production
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Based on the newly adopted strategy “The European Green Deal”, by 2050, the European Union should become the first climate neutral region worldwide. This very ambitious goal will require many political, social and economic activities. Huge financial resources will also be needed to change the economy in order to reduce the emissions of harmful substances into the environment. The implementation of such an ambitious climate policy requires the development of a very reasonable economic plan, backed by many analyses, to ensure adequate financing of this idea. One of the basic objectives of such a plan should be to appropriately target aid funds to a group of countries with a similar structure of the emissions in question. The identification of the groups of similar countries in terms of the structure of harmful substance emissions requires the development of both appropriate methodology and applicable studies. Such methodology is presented in this paper, namely the Kohonen’s artificial neural network model. The main objective of the developed methodology was to divide the European Union countries into groups similar in terms of the emissions of selected gases and dusts into the atmosphere. In addition to the division of the European Union countries into similar groups by the total volume of the emissions of studied substances, completely new division criteria were introduced. It was assumed that in order for the results of this study to be practically used, it is necessary to broaden the scope of the analysis. Therefore, an additional division of the European Union countries was made in relation to the volume of the emissions per capita, the value of gross domestic product and the area of a given country. This new approach was intended to show the diversity of the European Union countries in economic, demographic and geographical terms. The grouping results should be regarded as additional information to be utilized when preparing specific action plans to improve the state of the environment. Definitely, these plans need to be dedicated both to the groups of countries and the entire sectors in these groups. This will enable the efficient use of financial resources and can be a huge impetus for the European Union economic development. It will also allow smaller and less prosperous countries to achieve their goals. Undoubtedly, the developed methodology and conducted research allowed the authors to solve a significant research problem, and the results can be successfully used in practice.

ACS Style

Jarosław Brodny; Magdalena Tutak. The analysis of similarities between the European Union countries in terms of the level and structure of the emissions of selected gases and air pollutants into the atmosphere. Journal of Cleaner Production 2020, 279, 123641 -123641.

AMA Style

Jarosław Brodny, Magdalena Tutak. The analysis of similarities between the European Union countries in terms of the level and structure of the emissions of selected gases and air pollutants into the atmosphere. Journal of Cleaner Production. 2020; 279 ():123641-123641.

Chicago/Turabian Style

Jarosław Brodny; Magdalena Tutak. 2020. "The analysis of similarities between the European Union countries in terms of the level and structure of the emissions of selected gases and air pollutants into the atmosphere." Journal of Cleaner Production 279, no. : 123641-123641.

Journal article
Published: 01 August 2020 in New Trends in Production Engineering
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Methane is one of the most dangerous gases occurring in mining production. Being inseparably connected with the rock mass, it presents a serious risk to occupational safety and reduces the effectiveness of mining production. A particularly high methane hazard occurs directly during exploitation in longwall headings and the drivage of roadways. Exceeding the maximum allowable level of its concentration in these headings makes it necessary to disconnect all machines until this concentration level is reduced. This leads to unscheduled downtimes of such machines, thus increasing the costs of their operation and decreasing their effectiveness. The paper demonstrates the results from the analysis of machine downtimes in the drivage of roadways, caused by excessive methane concentration levels. The analyses were based on the indications from the system for automatic monitoring of the ventilation parameters in this heading. The results obtained clearly demonstrated that exceeded values of methane concentration caused a series of unexpected downtimes in the drivage process. As a result, the process was disturbed and its effectiveness reduced. The presented analyses are one of the first to address the issue of how methane emissions affect machine downtimes. However, this phenomenon represents a major problem that needs to be addressed comprehensively in order to minimise the losses arising out of the necessary disruptions to the exploitation process.

ACS Style

Jarosław Brodny; Magdalena Tutak; Dariusz Felka; Dorota Palka. Analysis of Stoppages in the Process of Roadway Drivage Caused by Exceeding the Maximum Allowable Level of Methane Concentration. New Trends in Production Engineering 2020, 3, 197 -210.

AMA Style

Jarosław Brodny, Magdalena Tutak, Dariusz Felka, Dorota Palka. Analysis of Stoppages in the Process of Roadway Drivage Caused by Exceeding the Maximum Allowable Level of Methane Concentration. New Trends in Production Engineering. 2020; 3 (1):197-210.

Chicago/Turabian Style

Jarosław Brodny; Magdalena Tutak; Dariusz Felka; Dorota Palka. 2020. "Analysis of Stoppages in the Process of Roadway Drivage Caused by Exceeding the Maximum Allowable Level of Methane Concentration." New Trends in Production Engineering 3, no. 1: 197-210.

Journal article
Published: 03 July 2020 in Sustainability
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A commonly used strategy in production enterprises is the idea of sustainable development. For an idea to be effectively implemented, it is essential to have competent and well-informed staff. This condition is necessary, but not sufficient. Still, the introduction of changes in the enterprise—including rational management of resources, as well as fair distribution of benefits and social development—requires acceptance on the part of employees. The implementation of this idea entails the need to introduce organizational changes, new technologies and innovative products. Currently, this direction in development is gradually beginning to determine the competitiveness of an enterprise. The present article discusses the results of a questionnaire survey in one production enterprise; the survey aimed at assessing work conditions. The research results were to show how the current changes related to the idea of sustainable development being implemented in this enterprise are assessed by the employees in the production sector. The obtained results are also to serve as a basis for developing a strategy for introducing further changes in this enterprise. The quantitative research included an evaluation of 24 research variables, which were divided into nine thematic groups relevant to work conditions in the enterprise. The research covered three basic groups of factors: work characteristics, human resource management policies and the social context of work. A global assessment of the enterprise’s performance was also undertaken. The research therefore focused on the practical aspects of the activity carried out by the enterprise. The results obtained should provide a basis for assessing the potential for introducing innovative solutions in line with the idea of sustainable development as well as improvements in human resource management. This basis is also particularly important for implementing such solutions in the enterprise which are in line with changes related to the concept of Industry 4.0.

ACS Style

Magdalena Tutak; Jarosław Brodny; Małgorzata Dobrowolska. Assessment of Work Conditions in a Production Enterprise—A Case Study. Sustainability 2020, 12, 5390 .

AMA Style

Magdalena Tutak, Jarosław Brodny, Małgorzata Dobrowolska. Assessment of Work Conditions in a Production Enterprise—A Case Study. Sustainability. 2020; 12 (13):5390.

Chicago/Turabian Style

Magdalena Tutak; Jarosław Brodny; Małgorzata Dobrowolska. 2020. "Assessment of Work Conditions in a Production Enterprise—A Case Study." Sustainability 12, no. 13: 5390.

Conference paper
Published: 18 June 2020 in E3S Web of Conferences
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Most of currently exploited hard coal seams has a very high degree of methane saturation. Consequently, the mining process of such deposits generates substantial amounts of methane. This in turn increases the risk of fire and/or explosion of this gas. Methane hazard is currently one of the most dangerous threats occurring in the process of underground mining exploitation. In particular, this applies to longwall excavations where the rock mass mining process generates the highest level of this gas. Commonly used high-performance longwall complexes cause an increase in the amount of coal output, which also causes an increase in the amount of methane released. In order to prevent hazardous concentrations, appropriate ventilation systems and atmosphere monitoring in mining excavations are used. The paper discusses currently used methods designed to limit risks caused by methane such as methane drainage. The paper presents an example of the use of an innovative method of analysing methane risk status and measures aimed at minimizing it. The developed method is based on air parameters in the actual mining area which were then used to create a method of ventilation for such excavations. The method combines advanced model analysis and experience of mine employees and integrates academic and practical knowledge. The main objective of the activities presented in the article was to improve the safety of mining operation

ACS Style

Leszek Sobik; Jarosław Brodny; Gennady Buyаlich; Pavel Strelnikov. Analysis of methane hazard in longwall working equipped with a powered longwall complex. E3S Web of Conferences 2020, 174, 1 .

AMA Style

Leszek Sobik, Jarosław Brodny, Gennady Buyаlich, Pavel Strelnikov. Analysis of methane hazard in longwall working equipped with a powered longwall complex. E3S Web of Conferences. 2020; 174 ():1.

Chicago/Turabian Style

Leszek Sobik; Jarosław Brodny; Gennady Buyаlich; Pavel Strelnikov. 2020. "Analysis of methane hazard in longwall working equipped with a powered longwall complex." E3S Web of Conferences 174, no. : 1.

Journal article
Published: 26 May 2020 in Management Systems in Production Engineering
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Dustiness of the mine atmosphere during carrying out exploitation is one of the most hazardous factors threaten to health and life of employees. Also it is large hazard for all type of mechanical and electrical devices operating in mining headings. Coal dust is also very dangerous due to its possibility of explosion. Currently applied technologies of rock mass mining process, entire transport process of output and applied ventilation system cause that rock and coal dust is presented practically in each of the mining heading. Practically, is impossible to eliminate dust from mining headings. However, one can determine its parameters and potential ways its displacement. In the paper there is presented modeling research methodology of dustiness state in a driven dog heading. Developed model is the basis for this methodology, including the diphase flow of mixture of air and dust in the mining heading. Analysis was performed for real driven dog heading. Based on performed analyses, distributions of particular fraction and movement trajectories of selected dust grains were determined. Developed methodology gives a lot of opportunities for analysis of dustiness state in mining headings and in other compartments. It enables to determine parameters of particular grains and their impact on ventilation parameters of the air stream in the tested headings. Obtained results can also be used to reduce dust hazard.

ACS Style

Jarosław Brodny; Magdalena Tutak. Analysis of Dustiness State in a Driven Underground Dog Heading Ventilating by Auxiliary Air-Duct. Management Systems in Production Engineering 2020, 28, 73 -77.

AMA Style

Jarosław Brodny, Magdalena Tutak. Analysis of Dustiness State in a Driven Underground Dog Heading Ventilating by Auxiliary Air-Duct. Management Systems in Production Engineering. 2020; 28 (2):73-77.

Chicago/Turabian Style

Jarosław Brodny; Magdalena Tutak. 2020. "Analysis of Dustiness State in a Driven Underground Dog Heading Ventilating by Auxiliary Air-Duct." Management Systems in Production Engineering 28, no. 2: 73-77.

Journal article
Published: 17 May 2020 in Energies
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The world’s economic development depends on access to cheap energy sources. So far, energy has been obtained mainly from conventional sources like coal, gas and oil. Negative climate changes related to the high emissions of the economy based on the combustion of hydrocarbons and the growing public awareness have made it necessary to look for new ecological energy sources. This condition can be met by renewable energy sources. Both social pressure and international activities force changes in the structure of sources from which energy is produced. This also applies to the European Union countries, including Poland. There are no scientific studies in the area of forecasting energy production from renewable energy sources for Poland. Therefore, it is reasonable to investigate this subject since such a forecast can have a significant impact on investment decisions in the energy sector. At the same time, it must be as reliable as possible. That is why a modern method was used for this purpose, which undoubtedly involves artificial neural networks. The following article presents the results of the analysis of energy production from renewable energy sources in Poland and the forecasts for this production until 2025. Artificial neural networks were used to make the forecast. The analysis covered eight main sources from which this energy is produced in Poland. Based on the production volume since 1990, predicted volumes of renewable energy sources until 2025 were determined. These forecasts were prepared for all studied renewable energy sources. Renewable energy production plans and their share in total energy consumption in Poland were also examined and included in climate plans. The research was carried out using artificial neural networks. The results should be an important source of information on the effects of implementing climate policies in Poland. They should also be utilized to develop action plans to achieve the objectives of the European Green Deal strategy.

ACS Style

Jarosław Brodny; Magdalena Tutak; Saqib Saki. Forecasting the Structure of Energy Production from Renewable Energy Sources and Biofuels in Poland. Energies 2020, 13, 2539 .

AMA Style

Jarosław Brodny, Magdalena Tutak, Saqib Saki. Forecasting the Structure of Energy Production from Renewable Energy Sources and Biofuels in Poland. Energies. 2020; 13 (10):2539.

Chicago/Turabian Style

Jarosław Brodny; Magdalena Tutak; Saqib Saki. 2020. "Forecasting the Structure of Energy Production from Renewable Energy Sources and Biofuels in Poland." Energies 13, no. 10: 2539.

Journal article
Published: 14 April 2020 in Energies
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The European Union (EU) is considered one of the most economically developed regions worldwide. It was driven by the mining industry for several decades. Despite certain changes in this area, a number of mineral and energy resources are still being mined in the EU. Nevertheless, mining activities are accompanied by many unfavorable phenomena, especially for the environment, such as greenhouse gas and air pollutant emissions. The great diversity of the EU countries in terms of the size of the “mining and quarrying” sector means that both the volume and structure of these emissions in individual countries varies. In order to assess the current state of affairs, research was conducted to look at the structure and volume of these emissions in individual EU countries. The aim of the study was to divide these countries into homogenous groups by structure and volume of studied emissions. In order to reflect both the specificity and diversity of the EU countries, this division was based on the seven most important gases (CO2, CH4, N2O, NH3, NMVOC, CO, NOx) and two types of particulate matter (PM 2.5, PM 10) emitted into the atmosphere from the sector in question. The volume of studied emissions was also compared to the number of inhabitants of each EU country and the gross value added (GVA) by the mining and quarrying sector. This approach enabled a new and broader view on the issue of gas and air pollutant emissions associated with mining activities. The artificial Kohonen’s neural networks were used for the analysis. The developed method, the analyses and the results constitute a new approach to studying such emissions in the EU. Research that looks only at the emission of harmful substances into the environment in relation to their absolute values fail to fully reflect the complexity of this problem in individual EU countries. The presented approach and the results should broaden the knowledge in the field of harmful substance emissions from the mining and quarrying sector, which should be utilized in the process of implementing the new European climate strategy referred to as “The European Green Deal”.

ACS Style

Jarosław Brodny; Magdalena Tutak. The Use of Artificial Neural Networks to Analyze Greenhouse Gas and Air Pollutant Emissions from the Mining and Quarrying Sector in the European Union. Energies 2020, 13, 1925 .

AMA Style

Jarosław Brodny, Magdalena Tutak. The Use of Artificial Neural Networks to Analyze Greenhouse Gas and Air Pollutant Emissions from the Mining and Quarrying Sector in the European Union. Energies. 2020; 13 (8):1925.

Chicago/Turabian Style

Jarosław Brodny; Magdalena Tutak. 2020. "The Use of Artificial Neural Networks to Analyze Greenhouse Gas and Air Pollutant Emissions from the Mining and Quarrying Sector in the European Union." Energies 13, no. 8: 1925.

Journal article
Published: 18 February 2020 in Energies
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The European Union (EU) countries, as one of the most economically developed regions in the world, are taking increasingly decisive actions to reduce the emission of harmful substances into the natural environment. This can be exemplified by a new climate strategy referred to as “The European Green Deal”. Its basic assumption is that the EU countries will have achieved climate neutrality by 2050. To do so, it is necessary to make an energy transition involving the widest possible use of renewable energy sources (RES) for energy production. However, activities in this area should be preceded by analyses due to the large diversity of the EU countries in terms of economic development, the number of inhabitants and their wealth as well as geographical location and area. The results of such analyses should support the implementation of adopted strategies. In order to assess the current state of the energy sector in the EU and indicate future directions of activities, research was carried out to analyze the structure and volume of energy production from RES in the EU countries. The aim of the study was to divide the EU countries into similar groups by the structure and volume of energy production from RES. This production was compared with the number of inhabitants of each EU country, its area and the value of Gross Domestic Product (GDP). This approach allows a new and broader view of the structure of energy production from RES and creates an opportunity to take into account additional factors when developing and implementing new climate strategies. The k-means algorithm was used for the analysis. The presented analyses and obtained results constitute a new approach to studying the diversified energy market in the EU. The results should be used for the development of a common energy and climate policy and economic integration of the EU countries.

ACS Style

Jarosław Brodny; Magdalena Tutak. Analyzing Similarities between the European Union Countries in Terms of the Structure and Volume of Energy Production from Renewable Energy Sources. Energies 2020, 13, 913 .

AMA Style

Jarosław Brodny, Magdalena Tutak. Analyzing Similarities between the European Union Countries in Terms of the Structure and Volume of Energy Production from Renewable Energy Sources. Energies. 2020; 13 (4):913.

Chicago/Turabian Style

Jarosław Brodny; Magdalena Tutak. 2020. "Analyzing Similarities between the European Union Countries in Terms of the Structure and Volume of Energy Production from Renewable Energy Sources." Energies 13, no. 4: 913.

Journal article
Published: 14 January 2020 in Energies
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A powered roof support is one of the most important machines of a longwall system. Its basic task is to ensure the safety and continuity of the mining process. The conditions of coal mining process are constantly changing and have significantly deteriorated in recent years, which in turn has also resulted in a significant increase in the requirements for mining support. As a result, it is necessary to develop an appropriate methodology that will facilitate the design and testing process of a power roof support as well as will help to select a roof support adjusted to given conditions. The article presents such a methodology. It is based on forecasted load impacting on a roof support, tests covering selected systems and elements of the section as well as legal conditions regarding the admission of the roof support to operation. This idea was developed in the form of a procedure that, by combining the three areas, should support the decision-making process in the case of different underground conditions. In terms of the expected load impacting on the support, the research team identified the most dangerous phenomena occurring in the rock mass that can generate these loads. Stand tests included impact load and permanent clamping of an excavation. The element that significantly impacts the safety of the support operation is a hydraulic leg, and therefore it was tested together with the safety system and the control system. Model tests were also carried out for the system with a safety valve. The developed concept takes into account legal conditions, which should include test results and different support operating conditions in a more flexible way. The main purpose of the work was to develop a comprehensive methodology for testing and assessing the possibility of using a powered roof support for given mining and geological conditions based on an analysis of safety and control systems. The presented approach is undoubtedly new and original, and can be widely used. It enables better adaptation of the support to given conditions. It also fits the research and activities designed to minimize the presence of miners or service workers in hazardous underground exploitation zones and to improve efficiency and boost sustainable development of the mining industry.

ACS Style

Dawid Szurgacz; Jarosław Brodny. Adapting the Powered Roof Support to Diverse Mining and Geological Conditions. Energies 2020, 13, 405 .

AMA Style

Dawid Szurgacz, Jarosław Brodny. Adapting the Powered Roof Support to Diverse Mining and Geological Conditions. Energies. 2020; 13 (2):405.

Chicago/Turabian Style

Dawid Szurgacz; Jarosław Brodny. 2020. "Adapting the Powered Roof Support to Diverse Mining and Geological Conditions." Energies 13, no. 2: 405.