|
|
Black coal position in the Czech energy sector
Kolarčík, Vojtěch ; Škvařil, Jan (referee) ; Pospíšil, Jiří (advisor)
This bachelor‘s thesis describes role of coal (especially the black) on the energy industry of Czech Republic. It attends to present sort of reserves in the Word and by us. Next it evaluates actual sort of energy industry. Closely analyses the power station Dětmarovice. It looks for possibilities enjoyment of coal in the future not only in the energy sector.
|
|
|
Electromobility, today and vision
Valíček, Roman ; Kracík, Petr (referee) ; Milčák, Pavel (advisor)
The main target of this bachelor thesis is to create an overview of current and future status of electromobility in the Czech Republic, including an analysis of possible impacts of this developing field to other sectors, especially energy industry and ecology. This work is divided into several sections. The first part is research and it deals with general knowledge related to electromobility at first and then it analyzes the current situation in our country. The electric vehicle charging and electromobility support are discussed in detail. The second part of the thesis focuses on the influence of electromobility growth on the power system and on the electromobile emission footprint. These chapters are based on self calculations and the results are evaluated at the end. The conclusion summarizes the findings and there is a comment about upcoming development of electromobility in the future.
|
|
|
An assessment of fracture behaviour of weld joints used in the power industry
Rádsetoulal, Milan ; Šiška, Filip (referee) ; Stratil, Luděk (advisor)
This thesis is focused on assessment of fracture behaviour of heterogeneous welded joint. The goal is to determine fracture behaviour at the interface of ferritic base metal and austenitic weld metal at temperature of 255°C. This kind of weld is widely used at energy industry. Fracture toughness was evaluated using CT specimens with size 0,5T in order to determine the initiation values of stable crack propagation. Fracture behaviour of the weld is correlated with results of metallography and fractography analysis. Both light and scanning electron microscopy is used for fractography analysis. An assessment of fracture behaviour of the interface of the weld joint is first of all connected with a need of suitable location of cycled crack to the interface of metals. In the case of well-prepared crack the lowest values of J-integral are observed. In other cases of slight crack deviation from the notch plane fracture values increase. Due to a large scatter of mechanical properties of heterogeneous weld joints an increased number of test specimens is needed to obtain relevant and conservative fracture toughness values. Correlation of fracture toughness with the results of fractography analysis leads to clarification of the crack trajectory and to description of fracture mechanism.
|
|
|
Energy and environmental assessment of buildings
Kubínek, Tomáš ; Baroň, Alexandr (referee) ; Hirš, Jiří (advisor)
The aim of this thesis is to give a general idea of energy; what it is, how it is created (rather transformed), how it is distributed and used in many of its forms. In detail it describes how buildings are evaluated in terms of energy consumption, how can we lower this consumption and how it affects the environment. Part A, theory, gives a general idea of the theory surounding transformations, losses and uses of energy. It describes processes of assessment of buildings. Part B, calculation methods, give an idea how current CZ/EU regulations describe optimal calculation methods. These methods include: energetic, enviromental and economic evaluation of buildings or energy-saving measures. Part C, project, describes an exact measuring in Elementary School Svážná-Brno. It describes the means of obtaining information. Includes graphically processed monthly energy consumptions. It also includes list of used sensors (measuring air temperature, humidity and surface temperatures), schemes of sensors placements, schemes of building and technical systems. The main part of this project are graphs of measured data made in EXCEL with descriptions.
|
|
|
Energy and environmental assessment of buildings
Kubínek, Tomáš ; Baroň, Alexandr (referee) ; Hirš, Jiří (advisor)
The aim of this thesis is to give a general idea of energy; what it is, how it is created (rather transformed), how it is distributed and used in many of its forms. In detail it describes how buildings are evaluated in terms of energy consumption, how can we lower this consumption and how it affects the environment. Part A, theory, gives a general idea of the theory surounding transformations, losses and uses of energy. It describes processes of assessment of buildings. Part B, calculation methods, give an idea how current CZ/EU regulations describe optimal calculation methods. These methods include: energetic, enviromental and economic evaluation of buildings or energy-saving measures. Part C, project, describes an exact measuring in Elementary School Svážná-Brno. It describes the means of obtaining information. Includes graphically processed monthly energy consumptions. It also includes list of used sensors (measuring air temperature, humidity and surface temperatures), schemes of sensors placements, schemes of building and technical systems. The main part of this project are graphs of measured data made in EXCEL with descriptions.
|
|
|
An assessment of fracture behaviour of weld joints used in the power industry
Rádsetoulal, Milan ; Šiška, Filip (referee) ; Stratil, Luděk (advisor)
This thesis is focused on assessment of fracture behaviour of heterogeneous welded joint. The goal is to determine fracture behaviour at the interface of ferritic base metal and austenitic weld metal at temperature of 255°C. This kind of weld is widely used at energy industry. Fracture toughness was evaluated using CT specimens with size 0,5T in order to determine the initiation values of stable crack propagation. Fracture behaviour of the weld is correlated with results of metallography and fractography analysis. Both light and scanning electron microscopy is used for fractography analysis. An assessment of fracture behaviour of the interface of the weld joint is first of all connected with a need of suitable location of cycled crack to the interface of metals. In the case of well-prepared crack the lowest values of J-integral are observed. In other cases of slight crack deviation from the notch plane fracture values increase. Due to a large scatter of mechanical properties of heterogeneous weld joints an increased number of test specimens is needed to obtain relevant and conservative fracture toughness values. Correlation of fracture toughness with the results of fractography analysis leads to clarification of the crack trajectory and to description of fracture mechanism.
|
|
|
Electromobility, today and vision
Valíček, Roman ; Kracík, Petr (referee) ; Milčák, Pavel (advisor)
The main target of this bachelor thesis is to create an overview of current and future status of electromobility in the Czech Republic, including an analysis of possible impacts of this developing field to other sectors, especially energy industry and ecology. This work is divided into several sections. The first part is research and it deals with general knowledge related to electromobility at first and then it analyzes the current situation in our country. The electric vehicle charging and electromobility support are discussed in detail. The second part of the thesis focuses on the influence of electromobility growth on the power system and on the electromobile emission footprint. These chapters are based on self calculations and the results are evaluated at the end. The conclusion summarizes the findings and there is a comment about upcoming development of electromobility in the future.
|
|
|
Safety Study of Electricity Blackouts in the municipality České Budějovice
ŠARVAIC, Miroslav
Electrical energy is a very important part of our society. Every household needs electrical energy for its daily routine, every company needs it for its production, our entire society can not do without electrical energy, it is literally the spine, the alpha and omega of everything. Modern products, such as mobile phones, storage media, computer sets, but also light, all of this is possible thanks to electrical energy, which is an integral part of life and no one can imagine a life without it anymore. Electrical energy is very important for the operation of a country, it is integrated in critical infrastructure and an electrical power blackout will endanger everything across our society. It is for this reason that society should learn to use electricity sparingly, and it also should ready itself for the possibility of a blackout coming at any moment, hitting anyone. The topic of this thesis is electrical energy. The thesis explores the question whether the Police of the Czech Republic is capable of an appropriate response in the event of a blackout in the wider area (ORP) of České Budějovice and whether the readiness for such an event is high. The goal of the work is the creation of a safety study on possible risks in the wider area (ORP) of České Budějovice. The research question of the thesis has been articulated as "In what manner will the wider area (ORP) of České Budějovice be secured in the event of a electrical power blackout?" In its theoretical part, the thesis discusses crisis control in general, the terms Crisis Situation, Regional Crisis Plan, Crisis Command are explained, components of the integrated rescue services (IZS) and their main activities are listed, the definition of responsibilities of the hetman and the scope of his authority within the IZS, his conduct during threat periods, the explanation of terms such as infrastructure and critical infrastructure. The current legislature in all the mentioned fields is listed here. The next part deals with electrical energy, how it is created, what types of power plants produce electricity, electric power transmission and distribution networks, what companies produce and distribute electrical energy, the activity of the Ministry of Industry and Trade, regulatory authority and state energy inspection activities, the activity of energy producers in the event of an electrical power failure during a crisis threat period or when a crisis situation arises, the activity of electrical energy operators when a crises situation arises, the activity territorial administration authorities during crisis situation threat periods and when crises arise. The practical part of the thesis discusses police procedures in extraordinary events, the number of district departments in the wider area (ORP) of České Budějovice, approximate numbers of police officers in the district departments, the definition of basic procedures within Police Law. The research part of the thesis focuses on the wider area (ORP) of České Budějovice, which contains various companies, selected for this thesis, which are compared using multiple-criteria assessment, with regards to possible safety risks in the extraordinary event of an electrical power blackout. The next point of the research was the approaching of experts from the ranks of the Police of the Czech Republic, Regional Section České Budějovice, who were then asked about police readiness, police material supplies, possible reinforcements which could secure buildings in the wider area (ORP) of České Budějovice, in the event of an electrical power blackout. The conclusion of this thesis focuses on the research question, which was to the effect of "Safety Study for the Event of an Electrical Power Blackout on the Wider Area Municipality of České Budějovice".
|
|
|
Public awareness about the oil shortage in the South Bohemian region
VACEK, Jan
The diploma thesis is focused on the assessment of the level of public awareness on the issue of oil shortage in the territory of the South Bohemian Region and the comparsion of the obtained data with the results obtained in the region of Pilsen. The results of this research are linked to the second objective of proposing measures to improve the information system on the given issue. For the needs of the thesis, quantitative research was chosen as a questionnaire survey. The questionnaire itself consists of 17 semi closed questions, with 3 filtering questions in the introduction, ranking respondents by sex, age and municipality, followed by 14 specific questions. The purpose of the research is to determine the level of public awareness of possible regulatory measures related to the declaration of the state of oil shortage, focusing on fuel shortages, powers of state administration and self-government authorities and a general overview of the oil security of the Czech Republic. The data obtained suggest that the average knowledge of the correct answers averages around 65 % on average, but succes rates vary from 30 to 94 %. Questions with a low average success of the right answers are potential topics for improving awareness, for example through short TV spots, training courses, or information brochures. The diploma thesis can be used for educational purposes as a starting material for follow-up research, or it can serve as an inspiration for finding a suitable way of communicating with the public in the field of crisis management.
|
|
|
Specifics of consumer protection in the field of energy industry
Vojtajová, Kateřina ; Elischer, David (advisor) ; Dvořák, Jan (referee)
The name of the thesis: Specifics of consumer protection in the field of energy industry The thesis deals with the specific consumer protection in the field of energy industry - in the market with electricity, gas, and thermal energy. The goal of the thesis is a detailed analysis of the legal regulation of the most important consumers' rights and related obligations of the license holders and eventual problems of consumers occurring in the market with energy commodities, followed by an analysis of relevant jurisdiction. The first part is focused on the definition of primary participants entering the energetic market where the attention is focused on the customer - consumer and energy supplier. The second part defines relevant customers' rights, besides the right to connection to the power system it also closely analyses especially the so-called some measures to protect a customer, as regulated in Section 11a of the Energy Act, including the right of withdrawal, termination of contract, right of withdrawal when the price is increased or other contract conditions are changed. It is followed by an analysis of some obligations of license holders. Besides the obligation of information, the so-called institute of continuation of licensed activity execution, the institute of obligation beyond the license...
|
guest ::
