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Steam-gas turbine for emission-free storage power plant
Schubert, Vojtěch ; Kracík, Petr (referee) ; Fiedler, Jan (advisor)
The thesis addresses energy storage in the context of the ongoing energy transformation and the climate crisis. Therefore, the CCUS technologies and the possibilities of electrical energy storage are presented in the form of a literature review. In relation to these issues, the thesis also presents the concept of an emission-free storage power plant, based on a patent from SE Brno. In the subsequent parts of the thesis, an instrumentation diagram is constructed, and a conceptual design of a gas-steam turbine for the energy unit of this storage power plant is proposed.
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Trends in renewable sources and in modern energy
Kotas, Tomáš ; Preisler, Lukáš (referee) ; Kudela, Libor (advisor)
The bachelor thesis deals with the issue of renewable energy sources. Renewable energy sources are categorized and extensively described, including the principles of their functions and basic parameters. The thesis further focuses on the development of the position of renewable energy sources over the years compared to non-renewable energy sources worldwide and in the Czech Republic. This development is monitored in terms of both electricity and heat. Statistics indicate that the share of renewable energy sources in both forms of energy is increasing. The thesis also analyzes the origin and course of discussions related to this issue, including climate change and international cooperation. Possible predictions and specific scenarios related to the energy vision are provided for both the Czech Republic and on a global scale within the thesis. All scenarios agree on the same future trend – an increasing share of renewable energy sources at the expense of non-renewable sources. In conclusion, the thesis addresses current trends in technologies in modern energy, with the most significant technological progress in recent years observed in the fields of electromobility, hydrogen, and CCUS. The final chapter discusses methods of energy storage.
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Systems reducing the energy dependency of buildings
Mařák, David ; Köbölová, Klaudia (referee) ; Kudela, Libor (advisor)
This thesis focuses on systems that reduce the energy dependence of buildings, such as heat pumps, photovoltaics, heat recovery, and the utilization of geothermal energy. The main objective of this work is to analyze individual methods and technologies aimed at optimizing energy efficiency. The thesis explores the impact of these systems on the sustainability and ecological footprint of buildings, combining a theoretical overview with practical cases to provide a comprehensive perspective on the subject.
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Possibilities of powering a recreational facility using renewable energy sources
Křížová, Karolína ; Sitek, Tomáš (referee) ; Linda, Jakub (advisor)
This bachelor thesis deals with the design of possible energy sources for a selected recreational facility. The theoretical part contains the determination of the heat and electrical energy requirements for the use of the building, the design of individual systems with renewable sources along with the assessment of their suitability and economic evaluation. A photovoltaic system with battery, photothermal collectors for water heating, a wind turbine system and a heat pump are considered.
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Evaluation of alternative propulsion types for aviation applications
Franz, Jan ; Horpatzká, Michaela (referee) ; Koštial, Rostislav (advisor)
This bachelor’s thesis attempts to summarize different types of aircraft propulsion with special regard to alternative types of propulsion and their comparison to conventional types. The text is consists of an overview of conventional propulsion and fuels used with extension to sustainable aviation fuels. Electric propulsion including motors, batteries and fuel cells. Examples of aircraft that use alternative propulsion. Hybrid propulsion and hydrogen storage and a calculation for a reference aircraft.
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Photovoltaic system design for a family house
Vrážel, Matěj ; Zlevorová, Tereza (referee) ; Toman, Filip (advisor)
This bachelor thesis deals with the design of a suitable photovoltaic system for the selected house. The theoretical part of the thesis is devoted to an introduction to photovoltaics and the presentation of the photovoltaic system. It is important that the proposed system is not excessive but is designed for the needs of the specific house. When designing the system, the selection of components is justified based on the evaluation of the location and consumption of the house and the subsequently determined annual production of the PV system. In conclusion, an economic assessment with storage options is conducted, and the expected return on investment is displayed.
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Feasibility study pumped storage hydropower plant in a particular locality
Vaněk, Michal ; Štigler, Jaroslav (referee) ; Hudec, Martin (advisor)
Electric energy storage represents an area, which needs to be further developed in order to accommodate more installed capacity of wind and solar power plants in the electric grids. Pumped hydro energy storage still remains ahead of other storage technologies in terms of achievable storage capacity. However, environment protection which is one of the obstacles for further PHES development in Europe causes significant reduction of suitable sites. It is therefore useful to examine also those sites, which seem to be less favourable for PHES at the first glance. This thesis deals with a feasibility study of a PHES on place of a former graphite surface mine. The thesis includes computation of basic capacities, choice of a suitable machine arrangement and introduction into PHES feasibility issues in electric grids. Two possible solutions of a smaller PHES that differ in their capacities were suggested based on available materials about the site as well as on available materials from Francis pump turbine model research. In case of both solutions a binary machine set is used and the available capacities are in small tens of megawatts. However, there is a wide head variation at the site, which causes significant power variation. Concerning the feasibility of the PHES, it is very uncertain that the participation in the day-ahead electricity market, would provide enough revenue to cover operation and capital costs. A following economic analysis investigating the capital costs of this particular PHES would be beneficial, as well as more detailed design of the reservoirs.
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Analyses of the Compressed Air Energy Storage proces in Ansys Fluent system
Hájková, Věra ; Šabacká, Pavla (referee) ; Maxa, Jiří (advisor)
This bachelor thesis discusses different types of energy storage in the introduction. It describes the different technologies, their functions, advantages and disadvantages. It compares them on the basis of the ESOI ratio, which is the ratio of energy stored on invested. The main type of energy storage covered in the term paper is compressed air energy storage. The thesis describes the principle of a method of energy storage as well the companies and projects that are working on or using this technology. Furthermore, the issue of heat energy loss during air compression is outlined, which leads to a significant reduction in efficiency. The last part of the thesis is a practical part, which uses a model example to show the temperature and pressure evolution during the pumping of air into the storage tank.
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Proposal for house backup energy source
Ličman, Petr ; Morávek, Jan (referee) ; Baxant, Petr (advisor)
This master's thesis deals with a design of backup power system, which will be using renewable energy sources, particularly solar energy. The first part describes the potential of solar power plant in the Czech Republic. The next parts describe types of photovoltaic systems, their components, design of photovoltaic systems and possibilities of controlling power consumption. Due to the fluctuating supply from renewable energy sources the thesis also deals with possibilities of predicting of the production electricity from these sources. In the practical part the design of backup power system for the house is done, which will also be working in summer as an optimizer for own consumption. A financial evaluation was done for this proposal.
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Different use of the wind energy.
Sukup, Jan ; Houdková, Lucie (referee) ; Jícha, Jaroslav (advisor)
This thesis describe main kinds of wind turbines, principle of their functions and their usage to electricity generation. The second part deals with ways to storing wind energy. There is description of compressed air energy storage technology and their combination with combustion of biomass. Second mentioned energy storage technology is electrolysis of water and possibility of usage hydrogen.
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