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Legal regulation of beekeeping
Vaněk, Jindřich ; Damohorský, Milan (advisor) ; Fabšíková, Tereza (referee)
Legal regulation of beekeeping Abstract This diploma thesis focuses on the western honey bee, beekeeping and its legal regulation and its history. Considering the fragmentation of Czech legal regulation of beekeeping among numerous acts, the goal of this thesis is to describe it in a logical and comprehensible manner and provide its analysis. Furthemore, the thesis aims to provide a comparison between Czech regulation and regulation abroad as well as evaluate the quality and level of our legislation, eventually suggesting possible adjustments. The thesis mostly uses descriptive and comparative methods as well as the method of analysis and synthesis. When it comes to the interpretation of legal provisions, the textual, logical and systematic methods are prevalently used with the occasional usage of historical and comparative methods. The thesis is divided into eight chapters which are further expanded upon in subchapters and paragraphs. The first chapter focuses on the western honey bee from biological and legal standpoint, distinguishing between the point of view of public law and private law. The second chapter serves as a brief excursion into the history of beekeeping and its legal regulation, mostly in Europe, spanning from prehistoric to contemporary times. The third chapter unravels the importance and...
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Solar irrigation design for a tropical greenhouse
Straňák, Rastislav ; Vaněk, Jiří (referee) ; Jandová, Kristýna (advisor)
The aim of this master’s thesis is to create a solar irrigation system for a tropical greenhouse under the organization Lužánky – středisko volného času. The work initially focuses on examining the current state of the greenhouse as well as various possibilities for its automation in relation to generating electricity from renewable sources. The proposed device, consisting of an integrated circuit board, is powered by a solar panel and includes external peripherals such as artificial lighting and mist irrigation. The thesis also includes testing the functionality of individual electrical circuits, the complete device in the greenhouse, as well as its impact on climatic conditions.
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Analyses of properties of photovoltaic inverters
Melichařík, Martin ; Vyroubal, Petr (referee) ; Vaněk, Jiří (advisor)
The thesis deals with photovoltaic systems with a focus on photovoltaic inverters. Solinteg, a company with a growing clientele, needs to set up a workstation to analyse PV inverters and systems at their branch in Brno for the European market. There are different types of system using different inverters and so the analysis for a particular system or inverter may be different. For a thorough analysis of these systems, special laboratory equipment is required, such as special power supplies and loads to simulate fault or operating conditions, complemented by measurement tools such as a power analyzer.
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Determination of climatic factor on the degradation of various solar cells types
Peroutka, Tomáš ; Jandová, Kristýna (referee) ; Vaněk, Jiří (advisor)
In this work are discussed photovoltaic cells. There are also discussed basic concepts of radiation source for solar cells. Also mentioned the issue of semiconductors and even the history and evolution of the solar cells. A large part deals with possibilities of photovoltaic cells degradation. In one chapter is an attempt to bring some types of photovoltaic cells and a description of the production of these modules.The practical part deals with photovoltaic modules degradation and its evaluation. Following part compares measured values with the values provided by producer of photovoltaic modules.
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Degradation of Photovoltaic Modules
Poledník, Tomáš ; Křivík, Petr (referee) ; Vaněk, Jiří (advisor)
The bachelor diploma thesis is focused on the constructional technology of the solar modules as well as on the problems of the induced degradation under the influence of the potential. It specifies the key issues and possible elements that influence the effect of environment with regard to possible causes of the origin of degeneration. The thesis includes the description of measuring of the polycrystalline and monocrystalline technologies that are resistant to the leading potential. Furthemore, the measuring was carried out on the chosen testing pieces that had been affected by the degradation of the output
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Analyse of photovoltaic solar cells by the photoluminescence method
Baura, Tomáš ; Bača, Petr (referee) ; Vaněk, Jiří (advisor)
This thesis deals with the analysis of solar cells by photoluminescence method. Photoluminescence method is based on the excitation of luminescence radiation of the solar cell material by an external excitation light source. This method can detect various types of defects in the material solar cells. The main objective is the design and realization of a measuring system defects of solar cells, which is based on this method. For excitation of luminescence is used LED array. For the detection of luminescence is used CCD camera with IR optical filter. To filter out the excitation light radiation is used disc screen and optical interrupter. The parameters and options of this measuring system are verified and characterized by test measuring for example the achievable rotation speed of screen and response of optical interrupter. At the end is tested detection of luminescence radiation of solar cells in the measuring system. The measured images are compared with the method of electroluminescence.
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Concentrator photovoltaic systems
Straškraba, Vojtěch ; Solčanský, Marek (referee) ; Vaněk, Jiří (advisor)
The subject of this bachelor´s thesis is to introduce concentrator photovoltaic systems, history of their foundation, evolution and application, principles of function and description of technology including its construction, optics, special photovoltaic cells and their cooling. The practical part of thesis describes the experimental concentrator photovoltaic system build in cooperation with Solartec s.r.o. company. The system is used to test hypotheses and study the behavior during its operation. The aim is to measure concentration ratio, temperature and electrical characteristics and to compare advantages of active and passive cooling of photovoltaic cells.
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Thermovision of photovoltaic modules automatic analysis
Repko, Ilia ; Křivík, Petr (referee) ; Vaněk, Jiří (advisor)
This work deals with the automatic evaluation of thermographic images of photovoltaic modules. In theoretical part of work described main principles of sun's battery work and methods for detection defects, that affecting the quality work, including method thermography, which is based on principle of contactless measuring the surface temperature the observed object. Practical part dedicated to creation of algorithms for detection defects, result is a source code for the program MATLAB.
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