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Design of Self-Propelled Sprayer
Sovják, Richard ; Paliatka, Peter (referee) ; Zvonek, Miroslav (advisor)
The main aim of this master's thesis is innovative approach to design of self propelled sprayer with technical, esthetic, ergonomic and economic demands. The final design with it's modern and functional look should be an attractive element of agrotechnics. Another aim is also to fulfill social and psychological functions and address the public about protection of cultivated crops with emphasis on alternative energy and other uses of agricultural machinery.
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Design of a combi cycle for heating plant
Rovný, Jan ; Kracík, Petr (referee) ; Milčák, Pavel (advisor)
Nowadays, European power production has to meet requirements than ever before. Environmentally oriented efforts end of coal mining and burning of coal, on which economies of a great number of countries depend. The main objective of these efforts is primarily the production of green energy from renewable energy sources and reduction of dependence on fossil fuels. However, the disadvantage of renewable sources (photovoltaics, wind farms) is their dependence on the weather conditions. As a result, there might be delays in supply of electricity, which must be compensated. One of the solutions is the launch of a combi cycle plant, which has the possibility of almost prompt start-up and electricity production. The combustion of gas and liquid fuels also ensures almost emission-free operation. In addition, thanks to the use of waste heat energy from the gas turbine, it is possible to operate the combi cycle unit with the character of a power plant and as a heating plant. The aim of this thesis is to search for combi cycles and balance calculation of the combi cycle heating plant under given conditions. In the last point, the approximate dimensions of the calculated heating plant are given.
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Gas turbine closed cycle
Kovář, Radim ; Šen, Hugo (referee) ; Fiedler, Jan (advisor)
Diploma thesis deals with the gas turbine closed cycle. The first part concerns the maximum of theoretical efficiency and practical excutable efficiency for the cycles without regeneration, cycles with regeneration and cycles with regeneration with split compression. The second part concerns the optimalization of the recuperator towards the speed of gas flow in the pipes of the recuperator. The third part includes weight and size design of two kinds of recuperators for different levels of regeneration.
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Preparation of Operating Gas Turbine Combustion
Trtík, Jan ; Tvrdík, Josef (referee) ; Mastný, Petr (advisor)
Master thesis is concerned with gas turbines from Siemens company. The thesis consists of two main parts. In the first part describes the different types of turbines, their characteristics and use in practice. The following is a detailed description of components and systems the biggest industrial gas turbine SGT-800. The second part discusses about the necessary steps for commissioning turbine. These particulars are managing software, testing, commissioning and phasing of the turbine generator to the distribution network. The conclusion is devoted to the example of calculating return investment on the overall gas turbine project.
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Heat exchanger design for closed gas turbine cycle
Sklenář, Oldřich ; Bogdálek, Jan (referee) ; Šen, Hugo (advisor)
This bachelor’s thesis deals with determination of parameters of an experimental high temperature gas-cooled nuclear reactor cycle and a project of a regenerative heat exchanger designed to this cycle. The first part is dedicated to thermal cycles. This part includes an actual summary of high temperature reactors, an analysis of their cycles, a theory of closed gas turbine cycle and a calculation of elected cycle. The second part concerns a review of heat exchangers and gas coolers used for nuclear energy purposes and heat transfer theory. The main objective of this part is a calculation of heat exchanger from the conceptual, thermal, hydraulic and strength point of view including inclusion of analysis of this solution.
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Thermal turbines
Tota, Lukáš ; Štelcl, Otakar (referee) ; Fiedler, Jan (advisor)
The bachelor thesis deals with thermal turbines. The first chapter contain history, with regard to the machines that preceded the turbines and the typical problems with the production of turbines. Then there is typology of steam and gas turbines. At the end of thesis there are examples illustrating the use of turbines in energy facilities.
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Optimalization and calculation of transition duct design
Havlíček, Tomáš ; Náhlík, Luboš (referee) ; Paloušek, David (advisor)
The goal of this thesis is to create a methodic and a system, which would involve customized computing and consequent design of the transition duct using input and applied data effectively and would achieve optimized set of parameters. The methodic described in the thesis is applied on transition duct within air main ducting between the filter and gas turbine. Transition duct is a huge mounted assembly consisting of welded parts. NX 5 application was chosen as system environment of the thesis. Master model is a root for both design model and computing model. Weight and material optimization is a desired result which will serve as basis for designing. It is not the goal of this thesis to create one perfect computation model BUT to create a methodic, which would be manageable by any designer equipped by basic knowledge of engineering.
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Cogeneration unit with output 200 kWe
Tuček, Jan ; Moskalík, Jiří (referee) ; Lisý, Martin (advisor)
In this diploma thesis "Cogeneration unit with output 200 kWe" the first part describes the properties, drying and combustion of biomass. The next section deals with the description of the combined production of electricity and thermal energy and gas turbines. In the last part of the diploma thesis is devoted to the design and calculations of thermal cycle in order to achieve maximum efficiency.
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Combustion of a mixture of hydrogen and natural gas in the combustion chambers of boilers and gas turbines
Honzíček, Štěpán ; Kracík, Petr (referee) ; Milčák, Pavel (advisor)
Master‘s thesis specifically deals with very current topic of blending (low-emission) hydrogen and natural gas. A key view focus on combustion of a mixture hydrogen and natural gas. Preliminary part describes combustion of fuel gases in general and is followed by a technical search on construction of combustion chambers of boilers and gas turbines. It’s added information about current development and utilization of hydrogen. New projects of hydrogen combustion technologies are also introduced. Practical part shows a calculation of a gas mixture combustion balance in real conditions. It‘s extended by proposal and construction of a blending technology of hydrogen and natural gas with subsequent combustion in an uncooled combustion chamber. Concluding part includes a program for operating states calculating when the variables of introduced technology are changing.
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