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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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Optimization of combined heat pump and solar PV system for family house
Bojanovský, Jan ; Hudák, Igor (referee) ; Skryja, Pavel (advisor)
The aim of this work is to propose the optimization of a family house system heated by a heat pump in combination with a small photovoltaic power plant and a battery. The research part of the work describes the principle of operation and types of heat pumps, photovoltaic power plants and energy storage from the perspective of their use in a family house. The practical part of the work further focuses on the evaluation and optimization of the system that was newly installed in the family house. Because in this particular case the system was recently put into operation and it was not possible to obtain data continuously for the entire year of use, the missing data were supplemented by simulation or approximation. Based on a combination of measured and simulated data, the system was subsequently optimized for the most economically efficient use of electrical and thermal energy. Based on the outputs of this work, it is possible to assess the economics of operating the heat pump and photovoltaic power plant and the suitability of installing this system in an older family house.
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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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Heat storage technology with subsequent electricity production
Procházka, Artuš ; Preisler, Lukáš (referee) ; Pospíšil, Jiří (advisor)
This thesis concerns itself with problematics of accumulation of electric energy, especially with one of the future technologies and that is the Carnot batteries. Focus will be directed towards different types of charging the batteries, by charging the batteries is meant transformation of electric energy into a heat energy, and towards technologies of heat accumulators, in which the heat will be stored. Different realizations and future projects of Carnot batteries will also be included in this thesis, same goes for the comparison with other technologies for accumulation and for comparison between diverse Carnot battery technologies. The simple calculation of Carnot battery will be done on the end of thesis.
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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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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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Accumulation of energy from renewable sources
Charvátová, Marie ; Bajko, Jaroslav (referee) ; Fišer, Jan (advisor)
This bachelor’s thesis deals with the issue of accumulation of energy from renewable sources with a closer focus on electricity storage in the "small/home" scale. Delivering energy from renewable sources is highly variable and, in order to cover the time shift between production and consumption, energy must be stored. In the paper are described individual types of energy used in residential housing, sources of renewable energy are presented and various ways of energy accumulation are analyzed. The greatest attention is paid to chemical accumulators, because they are the most suitable solution for home use due to their practicality. At the end of the thesis, operational data from a small demonstration photovoltaic power plant with accumulation of electric energy in chemical accumulators are processed and evaluated.
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