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State of photovoltaic in the Czech Republic
Lukášek, Kamil ; Bača, Petr (referee) ; Vaněk, Jiří (advisor)
Photovoltaic in the Czech Republic has gone through significant development during last few years. The thesis describes physical principle of converting solar energy into electrical energy using photovoltaic cells. Photovoltaic power plant is a set of technologic components connected together to utilize solar energy and convert it into electric energy that could be distributed to electric power network. Review of the photovoltaic development in the Czech Republic and the list of the biggest operational photovoltaic power plants present important data for assessment of the current status of photovoltaic technology in the Czech Republic. Chapter operations and maintenance of photovoltaic power plants summarizes the most common causes of failures and presents diagnostic tools for service requests. Due to legislative changes, hybrid photovoltaic power plants construction has been prioritized as it is economically more efficient now. Construction of new hybrid photovoltaic power plant was assessed analytically using SWOT analysis that evaluates strong and weak sides of the projects in comparison with opportunities and threats of construction. After evaluation of obtained data the next steps of the hybrid photovoltaic power plant’s construction plan are proposed. The first part of hybrid photovoltaic power plant design contains PVGIS program's data evaluation, which provides sunlight intensity information for specified area. Obtained data were used in the second part of the design to determine proper components selection for family house hybrid photovoltaic power plant. Finally the economic view of the design and return of investments were assessed.
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CIP Safety
Šmoldas, Michal ; Stibor, Karel (referee) ; Štohl, Radek (advisor)
This master´s thesis deals with the analysis of CIP technology and the creation of laboratory tasks from components based on this technology. The aim of the thesis is to create a literary research on CIP technology and its individual extensions focusing on CIP Safety. Further, a functional laboratory panel is assembled from the available components in the FEKT VUT Brno laboratory supporting this technology CIP Safety, specifying the assignment of the laboratory task. Functionality of the panel has been verified by the SW solution of the laboratory task with visualization and control of the virtual production line. The result of the work is literary research on CIP technology, functional laboratory panel, specification of assignment of laboratory task and SW solution of task with visualization and control of virtual production line.
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Improving of reliability for NPP
Dubovský, Dávid ; Šen, Hugo (referee) ; Nerud, Pavel (advisor)
The aim of this paper is to describe and evaluate the reliability of nuclear plants at Bohunice (EBO). Then illuminate the methods for increasing the reliability and specify one of them (INPO AP 913). After describing the methods, summarize the work results of this method and proposes the way of application.
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Wireless model 802.11 in NS2
Botta, Miroslav ; Kubánková, Anna (referee) ; Šimek, Milan (advisor)
Theme of this work is simple wireless simulation Network Simulation 2 tool. The work consists of more parts. In the first section is basic theory about Wi-Fi networks, they types and standards and describes how useful can it be in practical life. In the second section there is a short annotation for programming in TCL language and possibilities of NS2 for simulating wireless networks. In the end there is a complex simulation of this network. In the third part there are two complex tasks where the information’s are drawn from the previous two parts.
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Wireless 802.11 IP Networks and their models in the OMNeT++ simulation tool
Jakúbek, Peter ; Burda, Karel (referee) ; Růčka, Lukáš (advisor)
The bachelor work concentrates on familiarization with the standard IEEE 802.11. The work summarises the advantages, disadvantages, history and grouping of this standard according to norms. The great attention is paid to a user’s familiarization with the stimulating tool OMNeT++ and its extension Inet Framework. This extension helps to amplify the simulator for a supporting modelling of wireless nets. It supports models of a few protocols such as IP, UDP/TCP, Ethernet, PPP, IPV6, OSPF, RIP, and MPLS. It includes already programmed API modules from which is possible to create easily a wireless IP net.Programmes needed for a proper functioning of the OMNeT++ are described in corresponding paragraphs. A part of work deals with an installation and setting of programmes for accurate functioning of a compiler surrounding. Our work analyzes possibilities and manners of simulation of wireless IP nets which helps to create basic simulation model represented by standard 802.11. There are also included laboratory works in our bachelor work, which includes theoretical introduction to studied issues. Tasks are concentrated on ad-hoc and infrastructure mode. These tasks comprise of theory of problematic, detailed instructions for creating together with explanations, processed results and output of simulation
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A Component Design Framework in Nette Environment
Kvita, Michal ; Milička, Martin (referee) ; Burget, Radek (advisor)
This bachelor thesis describes the design and implementation of framework for simplification of creating, managing and using of components in Czech PHP framework Nette and its template language Latte. Project is realized as a library with help of the system of extensions in Nette. The library respectively uses markup language XML and internal configuration format of Nette called NEON. Text also contains analysis of that parts of Nette, which are relevant for this topic. Final solution is demonstrated on simple application and in conclusion future possible expansion is discussed.
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FACTORS LIMITING LIFE TIME OF NUCLEAR POWER PLANTS WITH PRESSURIZED-WATER REACTORS
Křivánek, Robert ; Kolat, Pavel (referee) ; Liszka, Ervin (referee) ; Fiedler, Jan (advisor)
The aim of the thesis is to analyze the state of preparedness of nuclear power plants (NPP) for long term operation (LTO) based on the IAEA SALTO (Safety Aspects of Long Term Operation) peer review service, analysis of the most significant failures, accidents and operational experience with type reactors PWR/VVER focusing on cases caused by equipment ageing and identification of major structures and components limiting life time of PWR/VVER-type nuclear power plants, and possible measures to ensure their required service life. Based on the results of the IAEA SALTO peer review service, an analysis of the main deficiencies and measures of NPPs in preparation for a safe LTO was performed, focusing on topics whose deeper knowledge is important for the future more precise determination of technical factors limiting the lifetime of NPPs. The main deficiencies and measures in the preparatory phase for LTO and the most important technical measures are summarized in chapter 4.5. The main deficiencies and the most important technical corrective measures in the area of ageing management of structures and components are discussed separately. The history of major failures and operational experience of nuclear power plants with PWR/VVER reactors from the point of view of ageing of structures and components is analyzed in chapter 6.2. The result is a statistic analysis of ageing-related events, an overview of the most significant PWR/VVER reactor failures with an impact on their service life, a statistical overview and discussion of the most important degradation mechanisms, and other important findings from the history of major failures and operational experience. Chapter 6.3 analyzes factors limiting the operation of nuclear power plants with PWR/VVER reactors with focus on structures and components potentially limiting the life of PWR/VVER reactors and possible measures to ensure their required life. In conclusion, the main reasons of permanent shut down of NPPs (actual and potential) for 40, 60 and 80 years of operation and the measures to ensure their required life are summarized.
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Information System with Interpreter for Measured Data Processing and Visualisation
Šifra, Martin ; Skála, František (referee) ; Szőke, Igor (advisor)
This thesis describes the design and implementation of web-based information system for performance tests of Czech Mountaineering Association's sport climbers management. The system is implemented in PHP using frameworks Nette and Doctrine 2 with an emphasis on easy extensibility and maintainability. Beside basic operations allows integrated interpreter to execute extensive calculations with the data. Build solution keeps features of the spreadsheet and makes data available from the Internet. Its usage accelerates orientation in data with posibility of their visualization in order to improve the training of athletes.
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Graphical Visualization of Incident Handling
Markovičová, Veronika ; Holkovič, Martin (referee) ; Hynek, Jiří (advisor)
This bachelor thesis describes the proposal and implementation of components that visualize data on incidents and their states. These components aims to create a clear visualization of incidents and their states that would facilitate the search for information on incidents and thus streamlining their work. One of the components created shows a detailed description of individual states of incident. The second created component shows either one or more incidents as the sequence of their states on the timeline. As a suitable tool for visualization and demonstration of created components, dashboard has been chosen. Components were consulted and tested with Flowmon.
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