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Type design and flowchart of a steam turbine for a specific location
Kalina, Leoš ; Pospíšil, Jiří (referee) ; Škorpík, Jiří (advisor)
This master's thesis is deals with type designing and implementing the steam turbine to the machine part of heat plant in reconstruction. The thesis consists of two parts. First part is theoretical explanation of the heating industry, steam turbines, thermal cycles and components of thermal power plants. Second part of the thesis describes the design and calculation of thermal diagrams based on turbine parameters, which were provided from Tenza, a.s. tender. There is a simplified calculation of technical-economic study in the conclusion of the thesis. The thesis output is recommendation of single final implementation solution for customer.
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Ideal cycles of combustion engines
Kertész, Tibor ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
The main subject of this bachelor´s thesis is to summarize basic theoretical knowledge of ideal thermodynamic cycles and to develop their mathematical models in Matlab to calculate and draw diagrams of each cycle. Based on the calculated values, it was possible to compare the cycles with each other.
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progressive trends in energy exploitation of fossile fuels
Horák, Pavel ; Přibil, Rudolf (advisor) ; Matějíček, Luboš (referee)
This paper, as literature retrieval, evaluates progressive trends in development of technologies for energetic use of fossil fuels. The introduction is focused on reasons for increase of energetic efficiency of combustion processes, especially reasons for using of fossil fuels and their consumption over the world and in Czech Republic. Next chapter focuses on mainly used fossil fuels, which means coal, crude oil and its derivatives and natural gas. Those are evaluated in term of quality and historical progress, too. Fundamental chapter analyses particular improvements but also complex technologies used in energetic, for example using of gas turbines, assets of Kalina cycle, complex technology of Integrated Gasification Combined Cycle (IGCC), combined heat and power production (CHP), combined cycle gas turbine (CCGT) or pressurised fluid bed combustion (PFBC).
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Absorption heat pumps for small applications
Pejcl, Jiří ; Novotný, Jan (referee) ; Mastný, Petr (advisor)
This bachelor work is focused on absorption heat pumps for small applications. The aim of this work is to compile the basic differences between compression heat pumps and absorption heat pums. And also to propose the system with absorption heat pump, which is energeticly classified in the end of the work. In the opening part there is the constructional description of these heat pumps, there are explained basic principles of these mechanisms. Then you will find the comparison of absorption heat pumps and compression heat pumps. Next fraction is concerned with design of the system with absorption heat pump. There is the system with absorption unit designed - this unit enables to heat and to cool. And also with solar system, which will support the heating process of supply water. Final part is applied to energetic evaluation of designed system, for purpose of this evaluation are made basic counts of required energy.
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Steam Turbine for fossil power plant
Třináctý, Jiří ; Fichtl, Richard (referee) ; Fiedler, Jan (advisor)
This thesis deals with design is condensing steam turbines burning fossil fuels with nominal capacity of the generator of 250 MW with steam reheating and regenerative eight uncontrolled extraction points. The turbine consists of two bodies: a combined high-intermediate pressure section and low pressure parts with dual way outlet down into the water-cooled condenser. Work includes calculating thermal scheme for 100% and 75% capacity, specific heat consumption calculation and design of the flow HP-MP body. Further strength control and basic engineering design of high-medium- work completed by longitudinal section. Achievements are at the end of work compared with work 3a and the conclusion summarizes the advantages and disadvantages of the concept.
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Design of small jet engine to 1kN thrust
Gongol, Jakub ; Fiedler, Jan (referee) ; Škorpík, Jiří (advisor)
This work will be focused on issue of a jet engine. The thesis will be divided into search retrieval part and computational part. In the search retrieval part it will focus on different configurations of jet engines as well as areas of their use. The main part of the thesis will however focus on a calculations where a turbine, compressor and an exhaust nozzle will be designed in order to give a thrust of approximately 1kN. Next step will be determination of an engine charcteristic that will give us a preview on how the engine performance will look like in off-design modes.
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Thermodynamic cycle hot engine
Matuška, Petr ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
The aim of this work was to summarize basic theoretical knowledge of ideal thermodynamic cycles of heat machines and to develop their mathematical models to calculate and draw diagrams of each cycle. Based on the information found and calculations made, it was then possible to compare the individual cycles with each other.
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Solar production of electricity
Špiláček, Michal ; Hejčík, Jiří (referee) ; Charvát, Pavel (advisor)
In this bachelor’s thesis are mentioned basic methods how to convert solar radiation into electric energy. Shortly introducing the origin of solar radiation and its subsequent lightening of the Earth surface. Then is here the history of photovoltaic and principle of function of photovoltaic cells. In next chapters are mentioned a variety of cells, construction of photovoltaic panels and methods, how to increase their productivity. In the following chapters are mentioned basic thermal cycles used for indirect conversion of solar radiation into electric energy, their usage in various applications. At last, here are mentioned ways of using the gained electric energy both from direct and indirect conversion.
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Domestic heat pumps
Housírek, Jiří ; Baláš, Marek (referee) ; Pospíšil, Jiří (advisor)
The Bachelor´s thesis “Pump Heats for Heating Residential Buidings“ is divided into three parts. The first part explains the principle of pump heads, characterizes individual parts, describes interconnected relations, analyses theoretical diagram of the Carnot Cycle and division of pump heads according to sources of getting heat. The second part deals with particular type of heat consumption – water – which should be suggested for chosen residential building. Then follows a brief description of a chosen object, principal parameters of the object and interconnected summary of calculating figures and particular calculation of energetic demand of the building. The third part deals with economic analysis of a chosen system of heating and its financial return (return on investment) when two systems of heating are compared. The first one uses only gas boiler and the second one heat pump. The conclusion gives a particular evaluation of advantage of a suggested solution.
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