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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.
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Small wind turbines in urban enviroment
Ondráček, David ; Škorpík, Jiří (referee) ; Linda, Jakub (advisor)
This thesis is focused on the problematics of smaller wind turbines usage in the urban environment. The beginning of the thesis deals with the basic theory of wind, its origin, and specifics of air flow in the urban environment. Furthermore, a search of currently available wind turbines suitable for the urban built environment is performed, and regarding the specific air flow in this environment, possibilities are proposed to increase the efficiency of these turbines. The next part of the thesis analyses the experience from real world applications. At the end of the thesis, the energy gains generated by the selected turbine and photovoltaic panels in given locality are calculated, ending with a comparison of the suitability of these two sources of renewable energy.
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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.
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Technologies for electricity storage
Novák, Adam ; Lisý, Martin (referee) ; Škorpík, Jiří (advisor)
This project deals with description of individual ways of electric energy accumulation. Accumulation itself becomes an essential part of the electricity grid due to rising electricity fluctuations from renewable sources and uneven consumption from users. For each technology, the principle of functioning and the advantages or disadvantages are explained. Based on this informations, it is specified suitable application. At the end, the state-of-the-art technology and modern equipment for storing electricity are presented.
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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.
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Utilization of waste heat from combustion gases for power production
Rejnuš, Vojtěch ; Škorpík, Jiří (referee) ; Pospíšil, Jiří (advisor)
Methods of utilization waste heat are increasingly on the rise and can be applied in many technologies. One of the technologies is the manufacture of cement, which is focused issue of work. Within the solution, and for understanding the problem is outlined cement production process and the analysis of the waste heat from the process, on this basis are selected a suitable method using waste heat with a closer focus on ORC units. After following evaluation and selection of the most suitable unit is made design, calculation and construction of heat exchangers. The result is the evaluation of the entire proposal.
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Technological solution of biomass power station with steam engine.
Pleban, Jakub ; Lisý, Martin (referee) ; Škorpík, Jiří (advisor)
This work describes function and main parts of a heat plant burning biomass. The work is thematically divided into five parts. In the first part there are presented possible sorts of energy which are suitable for generating both electric and heat energy. The second part of the work describes basic principles of the plant functioning. The third part which relates to the second one is focused on the given technologic scheme of the plant. The fourth part closely analyses a function of a steam piston engine and its main components. In the last part there is assessed the actual situation in the field of heating plants in the Czech republic.
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Vortex tube
Chýlek, Radomír ; Škorpík, Jiří (referee) ; Pospíšil, Jiří (advisor)
The purpose of this diploma thesis was to find optimal operational parameters of Ranque–Hilsch vortex tube that would give the best results of temperature separation, and to create a numerical model of the device. Firstly, extensive research of current literature was done and analytical model of the tube was created. Then, the numerical model of the vortex tube was designed using Star-CCM+ software. Afterward, best fitting turbulence model was chosen to do the calculation and optimal geometrical parameters of the tube were obtained as a result of CFD simulation. Then, inlet nozzles for the tube were designed and manufactured. Experimental evaluation of the vortex tube and description of its optimal settings form a substantial part of the project. Finally, the data obtained from the experiment were compared to the results of numerical analysis and conclusions were deduced.
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Technologies for electricity storage
Pochylý, Jiří ; Kracík, Petr (referee) ; Škorpík, Jiří (advisor)
The point of this work is to compare and to describe basic types and principles of electric storage systems. With the increasing imbalance between consumption and generation of electric energy there is a need for integration of electric accumulators to the electric grid. Technologies for electric energy storage can be divided into several types, which differ in form and conversion of energy. These technologies are suitable for specific industrial applications.
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