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Influence of RES to power system in Czech Republic
Vánišová, Michaela ; Bartošík, Tomáš (referee) ; Mastný, Petr (advisor)
This text deals with renewable energy sources in terms of working on the electricity network of the Czech Republic. There is the definition of renewable energy sources in the work. Next there are discussed the basic information about connecting to the distribution network. In two parts, there is mentioned and discussed the issue of operation of renewable energy resources and their effects in terms of the electricity network. The last chapter is focused on the possibility of further utilization of renewable energy sources because of their natural energy.
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Simulation of power supply from wind power stations
Bartošík, Tomáš ; Mendl, Tomáš (referee) ; Haluzík, Evžen (advisor)
Theme Master’s thesis was studying of wind energy power supply. Comparison of character of wind power supply in Czech Republic to power supply abroad. Thesis begins with short introduction of historical wind applications. It continues by theory of wind engines, the wind engines construction and its facilities. Next part describes wind energy characteristics and physics. It describes wind speed influence to power supply of wind turbine, a physical limits of wind engines efficiency. Later, meteorological forecast possibilities are mentioned. Following chapter classifies wind power plants by geographical locations and characterizes them. It presents and explains individual cases of wind energy business growth in Czech Republic and other countries. There are also mentioned many suitable locations for wind parks in Czech Republic. There are described data analysis methods in chapter number 5. Analysis results of day period graph and year period graphs are shown. Unsophisticated forecast model is sketched out and created in following chapter. Here the regressive analysis methods are described, such as Autoregressive moving average model (ARMA), which can bring satisfactory results. Another example is Markov switching autoregressive model (MSAR). Next step from statistic forecast models is to sophisticated large forecasting systems. Those systems require meteorological forecast data and historical wind power data. Data are analyzed by statistical models. They have been developed recently and they are ordinary used nowadays.
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Low potential heat for electrical power generation
Dobiáš, Jiří ; Radil, Lukáš (referee) ; Bartošík, Tomáš (advisor)
This bachelor’s thesis deals with low potential heat sources for electrical power generation. It mentions primarily low potential heat sources, their distribution by origin and where you can find such resources. Another part deals with the technology that uses low potential heat to heat production of higher temperature level and power generation. These are discussed here with a heat pump, regenerative heating, Stirling engine, solar collectors, Peltier cells, etc. In addition is to their use in practice. The last chapter deals with the replacement of the heater in the regeneration heating coil from the solar collectors. It is thus the use of renewable energy sources. Carry out technical and economic calculations for the real utility of such a plan.
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Usage of gasification units for electrical power generation
Kučera, Michal ; Mastný, Petr (referee) ; Bartošík, Tomáš (advisor)
The Bachelor's thesis deals with gasification and possibilities of its utilization for electric power generation. It begins with brief historical introduction of gasification and comparison of gasification with combustion. The thesis is particularly focused on coal gasification. Hence the actual role of coal in power engineering is described and some basic coal properties are discussed. In the next part the coal gasification technologies are mentioned. The thesis also deals with cooling a cleaning of the gas. Next to the utilizing of gained gas for power generation, there are other application where gasification can be used. But more attention is paid to the possibility of using gasification for power generation in power plants working with integrated gasification (so-called IGCC) and in consequence, the actual world situation is reviewed. At the end of the Bachelor´s thesis, the power
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Small hydro power plant restoration project
Morávek, Jan ; Bartošík, Tomáš (referee) ; Radil, Lukáš (advisor)
This thesis summarizes the basic theoretical knowledge concerning of small hydro power plants. It describes the current state of small hydro power plant, analyzes the current solution and its drawbacks. The thesis further decribes options of possible improvement using suitable expansion. The last part of the work deals with an estimated production of electricity after the reconstruction, the approximate investment costs and the estimated time of the investments return.
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Household heating systems
Ševčík, Ondřej ; Bok, Jaromír (referee) ; Bartošík, Tomáš (advisor)
Main goals of this bachelor thesis are economic evaluation of four chosen technologies of heating, and heating system design. Introduction deals with problem of heating in a family house, types of heating systems and main influences affecting the choice of heating system. The third chapter discusses main components of heating systems. Each component of the system is characterized and described. The most important parts include heating source, which are divided by type of fuel. The fourth chapter describes other possibilities of austerity meassures, which reduce heat loss and heating costs. There is a mention about government subsidies. The fifth chapter shows the shares of different heating sources, that are used in residential houses. In the last chapter, the computation of heat loss in the particular object is done. Based on the heat loss computation floor and radiator heating system is proposed. Four heat sources are chosen for the object (gas boiler, heat pump, biomass boiler and electric boiler with acumulation tank) and the purchase and the operating costs are computed. Conclusion of the chapter is devoted to the economic balance of the four heat sources and their comparison in the return of investment.
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Utilization of local systems for power system regulation
Kostov, Jiří ; Geschwinder, Lukáš (referee) ; Bartošík, Tomáš (advisor)
Bachelor’s Thesis deals general information about methods of regulation of elektrification systems, including basic principles of regulation of frequency, regulation of voltage and regulation of reactive and active power. Work includes information about aggregate remote control system, power plants that participate on regulation and self device for regulation and controlling of reactive power. Work engages on new options in section of regulation and his requirements for distribution sites. Part of work deals information about renewable natural energy sources and his requirements for distribution sites.
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Comparison and classification of ecological impacts of different types of power stations
Kunc, Dominik ; Bartošík, Tomáš (referee) ; Mastný, Petr (advisor)
The main subject of this work is to compare the ecological impacts of different types of power stations, to describe the possibilities how to reduce some of their harmful effects, and to design a cleaner electricity production process. Firstly the summary of this paper structure is introduced and the choice of its subject is explained. The second part describes the structure of energy mix in the Czech Republic in 2009 and in the following subheads there are defined basic principles of the particular power stations’ functioning, harmful effects rising during their operating and their impacts on people and the environment. There is the evalution of the power plants that created the indispensable amount of electric energy in 2009, which are: thermal power stations (mainly coal-fired ones but also the power plants burning biomass and the gas power plants), nuclear power plants, water power plants, wind power plants and solar power plants. Further there is mentioned the economical demand of energy generation from various sources and thein potential in our country in the next years. In the following part is focused on the possibility of reducing harmfulness in present electricity production, to the reduction of carbon dioxide emissions. It briefly describes the influence of this greenhouse gas on warming of our planet, what methods of capture carbon dioxide are recently available, what are the principles of these methods and what are the possibilities of carbon dioxide storage and transportation. Then we sum up economic demands of power production in the relation to useage of these technologies in various types of power plants. Likewise the possibilities of their realization in the Czech Republic are discussed. At the end of the second chapter we estimate the change of energy mix in the Czech Republic as a possible reduction of detrimental effects created by electric power production. In the third part we classify and compare these harmful impacts. Last chapter is focused on the evaluation of our energy mix estimation.
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