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Inovation of a photovoltaic power system with battery storage
Pallová, Ivana ; Jandová, Kristýna (referee) ; Vaněk, Jiří (advisor)
This diploma thesis is focused on the Innovation of the existing power plant with battery storage. In the theoretical part, the individual parts of the photovoltaic power plant are introduced, the principle of operation of the photovoltaic cell and the individual types of these cells are desribed. The work also deals with the description of the existing photovoltaic power plant and their components. Subsequently, a battery systém and otherpossibilities of Innovation with the possibility of a subsidy and without it are designed. In the final part, the most advantageous solution is evaluated according to the performes simulations.
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Solar irrigation
Straňák, Rastislav ; Jaššo, Kamil (referee) ; Jandová, Kristýna (advisor)
This bachelor thesis deals with the issue of solar irrigation system together with the design and manufacture of the owner´s solution. The beginning of the thesis deals with the analysis of commercial equipment, determining its possible innovations. It continues with the analysis and selection of individual components for author´s solution. Newly designed device has a microcontroller that evaluates data from the relevant components, thus controlling the system processes. Thanks to the protection against self-destruction caused by running out of water or clogged hoses, the protection of plants against overwatering and the additive function of fertilization, i tis a compact solar irrigation system. The last part deals with the testing of the created equipment and the analysis of the achieved results.
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Simulation of solar cells using
Frydrych, Michal ; Vaněk, Jiří (referee) ; Jandová, Kristýna (advisor)
This thesis deals with problems of production of an electric energy by the help of photovoltaic panels. There is mentioned an analysis of problems at calculation of solar system for “island” operation of house, description of all partial segments needed for photovoltaic system and analysis of final costs on purchase of this system. A point of this thesis was making a model of house which used the photovoltaic panels for its function. On this created model was made a measuration during a common day at laboratory conditions and determination the important parameters of solar panel.
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Diagnostic of photovoltaic cells by LBIV
Sládek, František ; Jandová, Kristýna (referee) ; Vaněk, Jiří (advisor)
This dissertation main point is to take up with fotovoltanic cells metering methods. Dissertation work dwells with the most common defects rising during the fotovoltanic cells manufacturing. Also, there is a diagnosis workshop proposal and realisation. Workshop uses the Light Beam Inducted Voltages (LBIV) method. By the help of this method, fotovoltanic cells structures are analised and compared to the Light Beam Inducted Current (LBIC).
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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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Creation of laboratory exercises for Renewable sources of energy
Bajgl, Tomáš ; Jandová, Kristýna (referee) ; Křivík, Petr (advisor)
This diploma thesis deals with the transformation of solar and wind energy into electrical energy by using a photovoltaic panel and a wind turbine. The work gives insight into the Czech Republic’s issue of energetics in the context of historical development, the current state, and the expected future development. The primary attention is given to the renewable sources - the solar energy and wind energy. Basic principles of creation and manipulation of solar and wind energy are described in this work. Two laboratory tasks are created for the Renewable Energy Sources' class as a part of the practical part.
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The influence of environmental conditions of the recycling of solar modules
Langer, Filip ; Vaněk, Jiří (referee) ; Jandová, Kristýna (advisor)
This thesis is focused on experiments, goal of which is to separate protective glass apart from thin layer solar panel. This could lead to less expensive and more efficient recycling. We try to achieve the separation of the glass by thawing ethylene vinyl acetate layer, which serves as insulant and bonding material. Experiments are concluded in high temperature dryer and high temperature vacuum oven on samples of thin layer solar panel, which is for the purposes of experiments cut into same pieces by water jet cutting machine. The initiatory experiments in dryer and oven are to determine value of ethylene vinyl acetate thaw point in tested samples of panel. The thaw point is determined to be 340 °C. When exposed to this temperature, the ethylene vinyl acetate thaws enough for glass to be able to be extracted with minimal physical strength. The process is accompanied by fire destruction of tedlar layer and creation of exhaust gases. Following experiments in vacuum and nitrogen environment are to test their influence on thawing process. Exposing sample to temperature of 340 °C in vacuum led to no new results. Exposing sample to temperature of 340 °C in nitrogen environment prevented fire and achieved same level of thawing of ethylene vinyl acetate while creating less exhaust gases. Even though the fire was prevented, tedlar layer was still destroyed by the high temperature. Furthermore, particles of evaporated ethylene vinyl acetate condensed on surface of module in form of dust. Following experiments studied absorption of panel and influence of accessible solvents on thawing process. It was determined that panel is able to absorb approximately 2 % of acetone, 0,4 % of isopropyl alcohol and 0,11 % of distilled water in its own weight. Experiments with modules soaked in these solvents proved no new results in thawing process. By observing samples of ethylene vinyl acetate taken from module, thawed out of module after experiment in vacuum oven and dust condensed on surface of module after experiment in nitrogen environment, it was proven that the condensed dust is indeed ethylene vinyl acetate.
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Workplace for testing of solar cells using LBIC method
Harašta, Tomáš ; Jandová, Kristýna (referee) ; Fořt, Tomáš (advisor)
Subject this diploma thesis is introduction to solar problems, with folow-up focus on solar elements and reflection about their defects. The next part is dedicated diagnostic method LBIC (Light Beam Induced Current) that help to detect defects of solar elements. The work is concerned with aplication this method in general view, from construction of workplace, throuhg hardware to software. The last part is focused on results processing and analysis.
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