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Burners for liquid and gaseous fuels
Zaidullina, Liliia ; Baláš, Marek (referee) ; Kracík, Petr (advisor)
This Bachelor’s thesis is focused on the burners for liquid and gaseous fuels, primarily on the ones that are used in industrial technological equipment. This is a detailed research of available sources including publications and websites in order to describe the classification and construction of burners and their operation and also standards that must be observed. Three main objectives were defined for the paper. The first one is to describe the different types of burners, the basic construction concept of the burners on liquid and gaseous fuels. Usually, the construction of the burner depends on technological conditions of their application. The second objective is to describe the legal standards and basic parameters of the burners. These standards are applicable to industrial burners for gaseous and liquid fuels, which burn with mixture air and fuel. The standards cannot be applied to the burners, in which the additives such as electric or acoustic energy and oxygen. The third objective is to describe the method of offering and calculating burners.
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Balancing Rotors of Steam Turbines
Filip, Patrik ; Šnajdárek, Ladislav (referee) ; Kracík, Petr (advisor)
This bachelor’s thesis is a technical research dealing with issues of balancing turbine rotors and generally describing international standarts commonly used for balancing rotors. The first part is about unbalance in general context. The next part classifies types of rotors, standarts for balancing rotors and balancing methods. Then there is a description of a balancing device. The last part of this thesis includes a step by step process of balancing a specific rotor.
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Turbochargers
Veleba, Lukáš ; Škorpík, Jiří (referee) ; Kracík, Petr (advisor)
This bachelor thesis describes the basic principles of turbocharger function with a focus on the causes and consequences of damage. In it’s four main parts, the thesis depicts the historical evolution of turbochargers, explains the basic principle of supercharging, offers a general classification of superchargers and introduces some of the lines of turbochargers being produced by manufacturers today. The key part is focused on the types of turbocharger damage dealt with at TurboCar, s.r.o.
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The long-term accumulation of solar collectors and the subsequent use of the heat
Litera, Jiří ; Fiedler, Jan (referee) ; Kracík, Petr (advisor)
The aim of the thesis is the design and evaluation of the long-term accumulation of solar collectors and the subsequent use of the heat. The basic principles of the use of solar energy are introduced in the theoretical part as well as the list of available heat pumps, solar collectors moreover options for the accumulation of heat are evaluated. In the practical part the system of a long-term heat accumulation for a partially restored family house is designed, where accumulation into water or gravel are the two presented options. Solar energy is collected by solar collectors and accumulated in the long term storage. The system involves water to water or ground to water heat pump that reduces the temperature of the reservoir in order to increase the temperature difference of the system. Both options require a large volume of heat collecting, including large surface of solar collectors. Because of the high cost and spatial requirements the system shows to be hardly realistic in practice. For this reason an alternative solution of a family house heating system more suitable from the economic point of view is described. As a result it was proved that system of the long-term accumulation is not an appropriate solution for heating system of family houses and it is used in places with enough space for the accumulation such as high capacity trays or flooded mines. For existing family houses (partly insulated and with a heat source such as natural gas) the usage of the heat pump eventually supported by solar collectors appears as the most sensible solution. Such solution shows a return of investment from 14 to 25 years, and contributes to sustainable development and to reduction of non-renewable primary energy.
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Steam turbine start-up
Jelínek, Tomáš ; Kracík, Petr (referee) ; Šnajdárek, Ladislav (advisor)
This bachelor thesis focuses on steam turbine start-up process. The first part of this thesis describes in general terms the basic practices and principles of start-up. The second part deals with the general description of thermal stress on the rotor and stator part. There is also simplified calculation of start-up duration and admissible temperature difference. The last part is a calculation of heat transfer coefficient using inverse heat transfer analysis. There is a comparison of models and measurement data of thermal stress.
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Daily launches steam turbines and their impact on the life of the turbine
Štěpánová, Lenka ; Kracík, Petr (referee) ; Fiedler, Jan (advisor)
This thesis concentrates on the problem of steam turbines, which require daily cycling by reason of an unstable nature of the energy source. The first part focuses on the current trends which have caused still increasing demand for steam turbines designed for every day start-ups. There is a description of the steam turbine start-up procedure and the heat transfer theory thanks to which the list of the critical parts of the steam turbine has been selected and with respect to these critical points has been created the draft of technical measures for the turbine. The thesis is finished with an evaluation of the life of the steam turbine casing as one of the critical parts and with a proposal for a calculation of a start-up time of the steam turbine.
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Risk analysis of energy storage
Albert, Tomáš ; Kracík, Petr (referee) ; Baláš, Marek (advisor)
This bachelor thesis analyzes the risk of accumulation of electrical energy and problems with its storage. The first part describes the various storage systems of electricity and are given their advantages and disadvantages. In the second part systems are compared against each other. The final section is intended suitability of each system and its use for application in the vicinity of Brno.
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Gas turbines
Bukáček, Miroslav ; Kracík, Petr (referee) ; Pospíšil, Jiří (advisor)
The aim of this Bachelor thesis is create a summary of gas turbines and their comparison with internal combustion piston engines. This thesis deals with work cycles of gas turbines, internal combustion piston engines and their effectiveness. It contains a description of the basic components necessary for the operation of gas turbines. In conclusion is comparing of gas turbines and internal combustion piston engine.
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Solar collectors
Telecký, Vojtěch ; Baláš, Marek (referee) ; Kracík, Petr (advisor)
This thesis deals with using of solar energy. Thesis shows different varieties of construction types of collectors for domestic hot water, heating, connection options and their usebility. Fist chapter is about various types of collectors you can buy on European market. Next chapter is about designing collector for apartment building and enviromental impact of manufacturing and using collector.
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