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Risks and Impacts of Black-out in Czech Republic
Tomášková, Kateřina ; Poláčik, Ján (referee) ; Lisý, Martin (advisor)
Electricity is an integral part of our daily life. Only a small problem in the power system and a small current outflow can cause us a lot of inconvenience, let alone a wider outflow of elektricity. The aim of this thesis is to define the risks of black-out for the Czech republic. Then perform resers of foreign experience with the black-out and on the base of these experiances, outline the possible impacts for the Czech republic, in case that this situation would occur once in our country.
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Efficiency of hydrogen production by electrolysis
Pelán, Ondřej ; Špiláček, Michal (referee) ; Poláčik, Ján (advisor)
This thesis summarizes the basic information abouth hydrogen, its production, storage and energy utilization. The emphasis is put on alkaline electrolysis, the factors affecting its effeciency and the results of applying pulsating direct current. The end of the thesis attempts to experimentally prove the possibilities of regulating the performance of the alkaline electrolyzer.
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Impact of Operation Parameters on Fine Combustion Particles Concentration in the Flue Gas of Biomass Boilers
Poláčik, Ján ; Masaryk, Michal (referee) ; Adamec, Vladimír (referee) ; Pospíšil, Jiří (advisor)
This work deals with the impact of operating parameters on fine combustion particles formation in the flue gas of biomass combustion device. The research part of the work describes the properties of fine particles, its basic division, impact on human health and the environment. The basic knowledge of the influence of biomass combustion process on fine particles production up to 1 µm in size is summarized. The main part describes the experimental setup for evaluating the size distribution of fine particles. The following section describes the experimental setup with measured results for various combustion parameters in laboratory combustion, automatic boilers, as well as in the manual wood-burning combustion device. The main parameters which were tested were combustion temperature, oxygen amount, type of fuel and geometry of the burned biomass. The impact of individual parameters on the formation of the fine particles is evaluated. The final part of the thesis summarizes the ways in which it is possible to significantly influence the emissions of fine particles by the appropriate choice of combustion operating parameters.
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Environmental aspects heating
Vypušťáková, Veronika ; Poláčik, Ján (referee) ; Baláš, Marek (advisor)
The topic of this bachelor´s thesis is ecological impacts of heating. The first part contains information on selected pollutants that adversely affect the environment and human health. The second part is devoted to the comparison of pollutants in boilers for solid, liquid and gaseous fuels. The last third part focuses on proposals for measures to eliminate undesirable effects of pollutants.
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Fine combustion particles produced from real burning of biomass
Pažourek, Josef ; Poláčik, Ján (referee) ; Pospíšil, Jiří (advisor)
This bachelor’s thesis deals with fine combustion particles produced from real burning of biomass. The first chapter is about biomass, combustion devices in which biomass can be combusted and last but not least polluting substances, which are created during the combustion. In experimental part the measuring equipment that measures fine particles is presented. After that the results from measurement are evaluated.
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Heating of houses with solid fuels
Gerát, Mário ; Poláčik, Ján (referee) ; Baláš, Marek (advisor)
Bachelor thesis deals with the ways of heating houses with solid fuels. In the first chapter is visualized preview of solid fuels suitable for application in family houses, properties of solid fuels, their structure and modifiaction to proper form for heating. In the second chapter is preview of solid fuel heating techonologies for family houses, their division, principle of operation, advantages and disadvantages of each technology. In the last chaper is economical assessment and comparison of chosen types of comustion devices aplicated on standard house, integration of devices and their operation costs.
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Assessment of investment in heating houses
Kučera, Cyril ; Poláčik, Ján (referee) ; Baláš, Marek (advisor)
The bachelor thesis deals with using the appropriate system for reducing the primary thermal energy for heating in a family house. The components of the work is the calculation of heat losses of the house according to ČSN 06 0210. The main focus of the thesis is to compare various energy saving systems and calculation of their profitability.
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General ways for transformation aircraft jet engine to aeroderivative
Pokorný, Šimon ; Poláčik, Ján (referee) ; Škorpík, Jiří (advisor)
Purpose of these Bachelor thesis is to apprize the reader with the generals principles of transformation aircraft turbojet to aeroderivative. Part of the work are elementary functional principles and structural design of combustion turbine used for aircraft applications. They are connected to stationary power units designed to produce elektricity. The last chapter introduce separate transformation processes to change aircraft turbojet to aeroderivative.
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Autonomous energy systems
Dolinský, Filip ; Poláčik, Ján (referee) ; Pospíšil, Jiří (advisor)
Master thesis deals with usage issues of autonomous, self-sufficient and decentralized systems. In the first part convectional and experimental sources for autonomous systems are disclosed. Second chapter deals with accumulation of electrical and thermal energy and possibilities of applications. 3rd part is focused on pilot project realized for autonomous and smart systems, which were built in last years. In the 4th chapter electrical and thermal energy consumption curves are made on daily and monthly basis for 4 type objects. In the fifth part issue of autonomy is explained, and for type buildings solutions are made with additional return on investment. The last chapter is focused on calculation of thermal accumulator and briefly discloses small district heating.
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Solar Energy Applications in Houses
Jankůj, Tomáš ; Špiláček, Michal (referee) ; Poláčik, Ján (advisor)
This thesis is focused on photovoltaics and photothermics. Their source is solar radiation that belongs to the category of renewable sources. At present, great emphasis is placed on ecology and economics. For this reason, renewable sources are coming to the foreground. In the first part of the bachelor thesis, types of photovoltaic cells, technology and their efficiency are presented. Furthermore, the principle and construction of photovoltaic and photothermal systems are described. The second part describes the design of the energy solution of a family house using solar energy.
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