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Grate Boiler for Biomass and Coal Co-combustion
Baláži, Martin ; Ryšavý, Milan (referee) ; Skála, Zdeněk (advisor)
This thesis solves a design of a grate boiler burning wood chips or brown coal with a heat output of 160 MW. Stoichiometry flue gas is calculated according to the specified composition of each fuel. The dimensions of the individual heating surfaces are primarily calculated for burning wood chips and subsequently checked for the combustion of brown coal. Design of the boiler is completed by checking the overall heat output. Boiler design is accompanied by drawing documentation.
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Steam boiler with grate firing , burning coal or wood biomas 200 t/ h, 9,3 MPa 520°C
Čech, Jaroslav ; Hudeček, Mirko (referee) ; Skála, Zdeněk (advisor)
The aim of the work is the design of a grate boiler of 200 t . h-1 output, which will burn brown coal or wood chips. The work is divided into several parts. First, stoichiometric calculation and the calculations enthalpy of flue gases and air are performed. After calculating the heat balance and loss of the boiler was counted boiler efficiency. The design of individual heating surfaces is proposed and at the end are controlled the overall heat balance of the boiler. The calculation is supplemented by drawings.
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The proposal of measurements to fulfill emission limits for boiler of power unit 210 MW
Smokoň, Pavol ; Ing.Ondřej Nechvátal (referee) ; Baláš, Marek (advisor)
This master‘s thesis deals with denitrification of brown coal-fired boiler of electric power plant. First chapters describe technical characteristics of the boiler and possible measurements which would lead to lowering NOx emissions. In order for boiler to meet emission standards valid from 1.1.2016 flue gas treatment by selective catalytic reduction is proposed. Main part of the thesis is thermal calculation of the boiler with modifications necessary in order to apply SCR. The aim of calculation is to determine flue gas exit temperature and temperature at catalyst area in order to assess the suitability of proposed modifications.
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Stean boiler for sub bituminous coal, steam parametres 235 t/h, 14 MPa, 540°C
Horák, Stanislav ; Moskalík, Jiří (referee) ; Baláš, Marek (advisor)
The aim of the work is to design a brown coal combustion boiler of 235 t/h output. The work is divided into several parts. First, stechiometric calculations and calculations enthalpy of air and flue gas are performed. It is calculated heat balance of the boiler, the boiler losses and the thermal efficiency of the boiler is determined. After designing the combustion chamber thermal calculation is made. Then, individual heating surfaces are proposed and at the end of the calculations are controlling the overall energy balance of the boiler. For calculation was design documentation added.
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Adjustable belt conveyor
Drápalík, Martin ; Malach, František (referee) ; Malášek, Jiří (advisor)
The aim of this thesis is to design a conveyor belt readjustable to transport brown coal according to specific parameters. The introduction is focused on describing and dividing conveyor belts and characterizing their individual parts. The main part of the thesis is a description of selected components and design solutions, a functional computation carried out in accordance with the standard ČSN ISO 5048 and further an analysis of transported material's properties. The drafting documentation is attached to the thesis.
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Belt conveyor for brown coal
Babáček, Petr ; Jonák, Martin (referee) ; Malášek, Jiří (advisor)
The aim of this bachelor's thesis is to design of a belt conveyor for transport brown coal for the transport capacity of 140,000 kg per hour and the axial distance between the drums at the both ends of 30 m and height difference of 5 m. The thesis includes a brief description of the belt conveyor and its main parts. Functional calculation according to the current norm ČSN ISO 5048. Then a selection of the individual components was made from the company catalogues. Tensioning device, drive of conveyor and other necessary design solution of conveyor was also designed. Further, the stress analysis of the components of the tensioning device was done and the properties of the transported material are analysed in the final phase of the thesis. The thesis is extended by the required technical drawings.
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Fossil fuels use in Czech Republic
Trávníček, Tomáš ; Kracík, Petr (referee) ; Baláš, Marek (advisor)
The aim of the bachelor thesis is to collect facts about fossil fuels and their utilization in the Czech Republic. Firstly, the thesis discusses the fossil fuels and their division in general. The main part of the thesis is focused on mining and utilization of different kinds of fossil fuels in the Czech Republic with the emphasis being put on the brown coal, black coal and the natural gas. The oil and the lignite are briefly dealt with as well. The thesis includes the statistics of the fossil fuels‘ production of the mining companies, the summary of the big energy facilities in the Czech Republic and the mapping of their fuel bases.
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Brown Coal Power Plants in Czech Republic
Šperka, Radim ; Šnajdárek, Ladislav (referee) ; Špiláček, Michal (advisor)
The thesis describes brown-coal power plants in the Czech Republic. The first part discusses brown coal as a mineral raw material, its mining in the Czech Republic, the impact of mining on the environment and ecological territorial limits.. The second part deals with the Thermo-dynamic working cycles in the power plant. Also deals with various technological parts of brown-coal power plant, including equipment and procedures for the cleaning of exhaust gases. The last part describes the most important individual brown-coal power plants in the Czech Republic, their brief history, the technical parameters and the planned service life.
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Adjustable belt conveyor - conveyor frame
Huňka, Jan ; Kašpárek, Jaroslav (referee) ; Malášek, Jiří (advisor)
This bachelor thesis deals with the functional calculation of adjustable belt conveyor according to ISO 5048 with the required transport capacity 210 000 kg.h-1, axial distance 260 m and height difference 26 m. It includes analysis of the transported material, which is brown coal, including the list of alternative materials. The thesis also proposes designs of the conveyor frame for the required parameters.
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Fosil Fuels in Czech Republic
Ertelt, Tomáš ; Moskalík, Jiří (referee) ; Baláš, Marek (advisor)
The object of this bachelor thesis is to explore fossil fuels in the Czech Republic their kinds, qualities, occurrence, usage, extraction, import and export. Thesis focuses on black coal, brown coal, anthracite, lignite, peat, oil and natural gas. This thesis analyzes their availability, deposits, processing and usage in the Czech Republic. Production statistics of their extraction by 2011 are addend.
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