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Design of a photovoltaic power plant with battery storage for a family house
Hub, Michal ; Maule, Petr (referee) ; Vaněk, Jiří (advisor)
This diploma thesis deals with the design of a photovoltaic power plant with a battery storage for a family house. In the theoretical part at first the principle of photovoltaic cells is analysed together with the various types used in this branch. Furthermore, the thesis deals with the description of photovoltaic systems and its individual parts consisting of inverters and accumulators. This thesis analyses the object for the installation of a photovoltaic power plant, including legislative and subsidy conditions. In the final part, itself system is analysed with a price proposal.
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Characterization of the perovskit photovoltaic cells
Kaliyev, Alexey ; Jandová, Kristýna (referee) ; Novák, Vítězslav (advisor)
The work is focused on problems of perovskite photovoltaic cells. The theoretical part describes the properties of perovskite structure, its composition and use in solar cells. There is also a brief information on silicon-based solar cells, which is followed by a comparison of the two systems. The measurement methods, which this stated and described here are used to understand problematics photovoltaic, determination of efficiency, stability and durability of the solar cell. In the practical part will focus on the application of these methods, discussion and evaluation of results.
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Possibility of using alternative sources of energy in manufacturing facility
Malchar, Jakub ; Skála, Zdeněk (referee) ; Pospíšil, Jiří (advisor)
The Master’s Thesis prospects the suitability of installing a photovoltaic system and a cogeneration unit in the LIPOELASTIC manufacturing facility and proposes their actual realization. Theoretical part describes said facility, its current energy supply situation and presents the proposed realizations' principle of operation. Practical part contains concrete calculations needed for realizations' proposal and their economic evaluation both independently and jointly.
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Selection and development of educational materials for high school support webpage www.studiumchemie.cz
Zaspalová, Jana ; Šmejkal, Petr (advisor) ; Petrželová, Simona (referee)
This diploma thesis deals with selection, design and creation of new education materials for high school teacher supporting webpage www.studiumchemie.cz. The selection of the proper theme was done on the basis of research and evaluation of recent materials on the mentioned webpage and materials created at the Department of chemical education of Faculty of Science of Charles University in Prague. Preliminarily, the themes of synthetic macromolecular materials and new materials were selected. The convenience of the selected themes was confirmed by research and evaluation concerned to the preliminarily selected theme of recent high school textbooks and webpages. Consequently, educational materials in the form of PowerPoint presentations, websites, worksheets, tests, games and experiments focused on the themes of synthetic macromolecular substances and new materials were created. Materials were processed in accordance with the Framework Education Programme for Secondary General Education (Grammar Schools) as well as in accordance with the requirements of the Catalogue of graduation exam requirements from chemistry. The PowerPoint presentation and the webpage on synthetic macromolecular materials were roughly evaluated by group of teachers and the results of the evaluation are also part of the thesis....
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Backup power supply with solar panel charging
Křepela, Pavel ; Götthans, Tomáš (referee) ; Kubíček, Michal (advisor)
This project aims to create a backup power source with solar charging for small mobile devices (through USB connector). The charger should store power in a battery that is charged either from external power source or the solar panel. In the introduction, the work deals with the theory of solar cells and batteries. Furthermore, it described the selection of suitable components and design diagram.
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Measuring of the operational characteristics of PV systems
Jílek, Milan ; Radil, Lukáš (referee) ; Mastný, Petr (advisor)
The bachelor's thesis deals with the principle of the photoelectric effect, the composition of the photovoltaic cell and different types of solar panels. In this project there is also displayed the expected course of the operating characteristics. There are also discussed the parameters affecting this course. In next section describes the measurement system which is used to measure real operating characteristics. At the end of bachelor's thesis are listed results of real measurement.
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PV plant performance evaluation and optimization
Špinar, Marek ; Ptáček, Michal (referee) ; Morávek, Jan (advisor)
The Master´s thesis deals with issues of operational performance of two photovoltaic power plants. In the thesis is stated the history of photovoltaics, description of photovoltaic effect, used materials and production technology of the most used material in PV industry – Silicon. The basic parts and parameters of photovoltaic power plant are described. Thesis also solves, how could be done the first and periodically control due to relevant directives. The ways of diagnostics potentional failures, methods of measuring and the exam of monitoring system are stated. Practice part is focused on measuring and comparing operational performance of FVE Kurdějov and FVE Šakvice II. Operational performance was calculated from exported data for years 2014 and 2015. The thesis also contains measuring of each string connected to inventors, which are installed on the power plant. The result is an identification of strings with decreased operational performance. Based on that was created recommendations for optimalization and increase of the performance. The last part is software for simulation of photovoltaic power plant. This SW calculates potentional energy, which could be produced in a day with available data export. The calculation is defined by parameters, which are assigned.
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Draft methodology for processing and evaluation of long-term measurements on PV Panel
Žák, Tomáš ; Šlezingr, Jan (referee) ; Macháček, Jan (advisor)
This bachelor thesis aims to analyse the physical theory behind the photovoltaic cells and propose extension measurements for a modernised on-line laboratory. The first part of this thesis describes the theory of the photovoltaic conversion of solar energy into electricity. The p-n junction is described in detail because of its importance for a thorough understanding of the subject. The temperature dependence of a photovoltaic panel, i.e. the negative impact of rising temperature on the output power, is also described here. The contributions of this thesis include a summary of the current situation and the system of state subsidies for the current year as well as a proposal for an extension of measurements in an on-line laboratory, which is to be modernised, at the Department of Power Engineering. Therefore, the thesis includes some specific proposals of graphic dependence, which have a significant information value, and a possible further extension of the laboratory with new measuring and measured elements, which would be helpful for deeper understanding of the subject. In particular, it would be useful for understanding which factors influence the output power of a photovoltaic panel, both significantly and less significantly, which is undoubtedly the most important point.
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Organic semiconductors
Tebich, Ivan ; Macháček, Martin (referee) ; Boušek, Jaroslav (advisor)
My final thesis treats of usage photovoltaic phenomenon to production electric energy by solar cells. It inquires into this phenomenon in organic structures. Further it mentions basic types of constructions organic solar cells and evaluates their properties. In experimental part zhe thesis is focused on characterization thin-film structures made out of photoconductiv organic materials.
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