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Immediate diagnostics of aircraft jet engines
Valuch, Tomáš ; Molčan, Anton (referee) ; Šplíchal, Miroslav (advisor)
In this diploma thesis is elaborated design of diagnostic system for small jet engines. The aim is to describe the types of possible failures of jet engines, to determine important parameters characterizing the immediate state of engine and define methods for measurement of selected parameters. The first part is devoted to a description of selected types of small turbojet engines, followed by a summary of the most widely used diagnostic methods for assessing the health condition of the engine during operation. The next chapter contains calculation of the engine thermal cycle with characteristics of construction components. Then there is analysis of small jet engine failures with a description of their causes and possibilities of identification by diagnostic system. Thesis continues with a description of measurement methods and selection of the required sensors. Next chapter is focused on the proposed diagnostic system for condition monitoring of the engine. The last part is devoted to an excursion in laboratory for jet engine testing at the Technical University in Košice.
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The history of civil aviation 1950-1970
Bednář, Ondřej ; Kaddour, Mirvat (referee) ; Chlebek, Jiří (advisor)
This bachelor's thesis creates an overwiev of the history od civil aviation from 1950 to 1970. After World War II civilian transport aircraft was not common. At the end of the above two decades has become an essential part of traveling on long distance. Attention is given to important events in the history of aviation from transitiv from turboprop to turbofan engine. The highlight of this period was the construction of transport aircraft capable of overcoming supersonic speed.This thesis describes the development of helicopter construction. Attention is also given to the large construction offices in Europe, Asia and North America. Part of the work dealth with a development of aviation in Czechoslovakia.
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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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Testing of Aircraft Jet Engines
Trusík, Vojtěch ; Klement, Josef (referee) ; Šplíchal, Miroslav (advisor)
This bachelor final project is composed from two main parts. The first part is focused on describing of aviation agencies, function of jet engine, testing bed and desribing of testing of jet engines. The second part devote to application of CS-E prescription on the jet engine TJ-100 C.
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Aircraft jet engines with adaptive cycle
Heczko, Nikodem ; Šplíchal, Miroslav (referee) ; Klement, Josef (advisor)
In this final bachelor thesis is a basic overview and distribution of gas turbine engines, including a brief description of their function. The work is focused on jet engines with adaptive cycle. It introduces benefits of their use as aviation fuel units in terms of efficiency and description of possible ways to design solutions. Secondly, it analyzes the very principle of adaptive cycle and its implementation on the engine YF120. In conclusion are presented research programs dealing with adaptive cycle.
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Temperature measurement of jet engine exhaust gas
Tunkr, Pavel ; Beneš, Petr (referee) ; Havránek, Zdeněk (advisor)
In this bachelor`s thesis are preliminary shortly described turbojet engine, their principle and method exhaust gas temperature measurement. Are here mentioned possible to sorts sensors temperature and chosen fit type sensor for given to application. Is here buckthorn connection sensor temperature and inverter. In next parts is processed proposal electronic inverter temperature/voltage and his simulation by the help of programme NI Multisim. After realization functional sample and measured his parameters are here publicize measuring data and achieved record.
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Aircraft Power Units
Koutník, Tomáš ; Šplíchal, Miroslav (referee) ; Šošovička, Róbert (advisor)
This bachelor’s thesis deals with review of today most used aircraft power units. Briefly explains their purpose, working principle and most important influences on their function. Voluminous passage informs about main parts of aircraft power units and their functions. At the end of this thesis the directions of aircraft power units development are presented.
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Noise of Aircraft Jet Engines
Szelke, Ludvík ; Vacula, Jiří (referee) ; Novotný, Pavel (advisor)
In my bachelor's thesis I try to present the noise sources of aero-jet engines. First, I introduce the reader to a brief history of the development of jet engines and the principle of jet engine function. Then I continue with general knowledge about noise itself, what it is measured by and what effects it has on our lives. This is followed by an analysis of the sources of jet engine noise, both theoretical and using a computer model. At the end of my thesis, I mainly discuss the possibilities of noise reduction for the sources, and also possible future developments.
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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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Design of hydrogen jet engine to 1kN thrust
Mikulenka, Karel ; Šnajdárek, Ladislav (referee) ; Škorpík, Jiří (advisor)
This thesis includes a brief history of jet engines using hydrogen as fuel. Calculation of thermodynamics of small engine with thrust up to 1 kN which is in modern day used in practice drones or ballistic missiles will be conducted. Given initial parameters compressor selected is of radial type. Calculation of radial compressor and its verification in EES software. Issue of combustion chambers is presented and calculation of chamber balance is carried out. Computation of turbine and blading layout. Proposal of jet for expansion into atmosphere and engine thrust. Comparison of contemporary projects researching hydrogen propulsion in aerospace with their conventional counterparts and assessing their feasibility compared to other types of renewable fuels.
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