National Repository of Grey Literature 138 records found  beginprevious31 - 40nextend  jump to record: Search took 0.00 seconds. 
Wind power plant in a chosen locality
Dohnal, Petr ; Škorpík, Jiří (referee) ; Martinec, Jiří (advisor)
This master thesis deals with problematic wind power plants. There are described advantages and disadvantages of wind power plants and their environmental impacts. Thesis include chosen locality for wind power plant, chosen fitting types of turbines and calculation which choosing turbine for chosen locality. There are accomplished parametric studies of main parameters. From this study is chosen best fitting model of wind turbine. In the end are adduced statistics from Czech Republic, Europe and world.
Utilization of wind energy for delivery of liquids
Červinková, Kateřina ; Moravec, Prokop (referee) ; Štigler, Jaroslav (advisor)
The aim of this bachelor is developing a deep search about uzilization of wind energy for delivery of luquids, which is transforming to mechanical or potential energy of the liquid. We can find history of wind pumps in this work. We can also read about pump overview, which are using for drive of wind energy, constructions and parameters. Finally they are advantages and disadvantages of transforming wind energy to mechanical energy or potential energy of the liquid against transforming to electrical energy.
Usability of small wind turbine at household
Veselý, Petr ; Kracík, Petr (referee) ; Škorpík, Jiří (advisor)
The topic of bachelor’s thesis are small wind turbines, which can be divided into five basic parts. A history of wind energy is described in the beginning. Second part is all about manufacturers of wind turbines. Legislative and operating conditoins are prescribed in next section. Penultimate section deals with construction and main components of small wind device. Last part contains aerodynamic design with technical calculations.
Aerodynamic design of wind turbine
Žabka, Marek ; Fiedler, Jan (referee) ; Škorpík, Jiří (advisor)
This Master’s thesis focuses on the wind turbines. It describes the basic attributes of the wind energy and the wind potential of Slovak Republic, as well as the environmental impact of this sector. Meteorological data for the selected location are processed according to the Weibull distribution and they are used for the aerodynamic design of the wind turbine blades. Aerodynamic design is processed by using two methods. The first is the blade cascade theory, which is used to design prismatic and twist blades. The second method is called the blade element momentum, which is used to design wind turbine but only twist blades are designed by using this theory. Calculated aerodynamic shapes are compared and the best economic solution for the selected location is chosen.
Domestic electricity production from renewable sources
Halamíček, Milan ; Fiedler, Jan (referee) ; Pospíšil, Jiří (advisor)
The present bachelor thesis describes utilization of renewable resources, which can be used for production of electric energy. It presents three ways, one of them is wind power plant, the second is photovoltaic system and the last one is water power plant. There are suggested two ways of electric energy supply to family houses including economic evaluation.
Wind energy
Král, Ondřej ; Brázdil, Marian (referee) ; Kracík, Petr (advisor)
This bachelor’s thesis discuss wind energy sector. The first chapter focuses on basic construction types of wind power plants, their classification and description of the main parts. Basic physical principles by which electrical energy is produced, presents the next section, which deals with the lifetime of wind turbines, too. The final chapter describes the development of wind power in history, wind energy is here compared with other energy sources, and finally it is dedicated to matter of wind turbines’ energy payback.
Alternative energy sources
Stránský, Jaroslav ; Moskalík, Jiří (referee) ; Škvařil, Jan (advisor)
In this work, I tried to summarize the current state of world energy resources that we use to convert into electrical energy. There is solved the question of compensation running short supplies of fossil fuels and reduce discharge of greenhouse gasses. I´m looking for suitable compensation in department of alternative energy sources, among which I included the power of the Sun, water, wind, geothermal energy, using heat pumps, combustion energy, nuclear energy, fuel cells and hydrogen use. About anyone of replacing sources you learn about its history, advantages and disadvantages, the principle of function energy transform devices, and compare the potential that is available in the CR and in the world.
Optimisation of the house heating by use of the renewable energy sources
Husák, Ondřej ; Frk, Martin (referee) ; Křivík, Petr (advisor)
The thesis contains is familiar with the issues of renewable energy and global warming. Assessing the use of these resources in households in the Czech Republic. The selected family house, perform measurements on the existing heating system. In conclusion, there is suggestions for optimalization system houses, the possibility of linking the with renewable energy sources and an assessment of economic turn.
Description and modification of a system producing electricity for domestic consumption
Bobek, Jan ; Křivík, Petr (referee) ; Vaněk, Jiří (advisor)
The master’s thesis deals with the description of a system that is producing electricity for home consumption and also deals with implementation of a small raft, on which several wind turbines are installed. The system consists of three photovoltaic plants and batteries, that are charged from the wind turbines. The thesis also includes a price calculation and economic feasibility of the implemented system.
Renewable energy use at the municipal level in Germany
Řezníček, Jakub ; Lizcová, Zuzana (advisor) ; Nigrin, Tomáš (referee)
This bachelor thesis is about the Energiewende process (energy transformation from fossil and nuclear energy sources to renewable resources) and the use of renewable energy resources in German municipalities - how they obtain it and use the funds they get from the operation of renewable sources. The first part of the thesis deals with the description of the Energiewende process - what strategy the current german government of the SPD, Greens and FDP (2022) presented in the coalition agreement, what are the German emission targets and energy mix and describes some problems that accompany this process. The second part deals with the use of renewable resources directly in individual German municipalities. The work builds on the research question "How do German municipalities obtain and use renewable energy?" The used method is a case study, which compares three German municipalities from different federal states - Feldheim (Brandenburg), Wildpoldsried (Bavaria) and Sprakebüll (Schleswig - Holstein). They have built renewable energy resources (wind and solar power plants and biogas stations) on their territory, thanks to which they can now be 100% energy independent. The finances that municipalities derive from fees and from renewable energy trading are invested in local development. These villages...

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