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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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Design of turbine engine inlet in NACA-duct configuration
Babinec, Viktor ; Navrátil, Jan (referee) ; Doupník, Petr (advisor)
This master thesis is focused on design and aerodynamic analysis of subsonic turbine engine inlet in NACA duct configuration for unmanned aircraft. The first part of this paper is methodics for design considerations for NACA duct, which is based on theoretical analysis of this type of inlet. The acquired knowledge is used to design an inlet for the specified unmanned aircraft that is subject of CFD analysis. The impact of deflectors is considered in the evaluation and the solution is compared to the S-duct inlet. The proposed inlet with deflectors meets DC60 distortion criterion for all specified cases and the pressure losses requirements are met for lower velocities. Based on the results, the recommended application is for aircraft that flies in optimal design conditions for most of the mission.
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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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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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Design of turbine engine inlet in NACA-duct configuration
Babinec, Viktor ; Navrátil, Jan (referee) ; Doupník, Petr (advisor)
This master thesis is focused on design and aerodynamic analysis of subsonic turbine engine inlet in NACA duct configuration for unmanned aircraft. The first part of this paper is methodics for design considerations for NACA duct, which is based on theoretical analysis of this type of inlet. The acquired knowledge is used to design an inlet for the specified unmanned aircraft that is subject of CFD analysis. The impact of deflectors is considered in the evaluation and the solution is compared to the S-duct inlet. The proposed inlet with deflectors meets DC60 distortion criterion for all specified cases and the pressure losses requirements are met for lower velocities. Based on the results, the recommended application is for aircraft that flies in optimal design conditions for most of the mission.
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Aircrafts auxiliary power units
Baran, Jan ; Klement, Josef (referee) ; Šplíchal, Miroslav (advisor)
This bachelors thesis describes concepts used airborne auxiliary power units (APU) with respect to the determination of the main advantages and difficultes in the construction of individual concepts. It also defines the trends in this area. Part of the thesis describes the possibility of using fuel cells as an energy source on board the airplane.
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Aircrafts auxiliary power units
Baran, Jan ; Klement, Josef (referee) ; Šplíchal, Miroslav (advisor)
This bachelors thesis describes concepts used airborne auxiliary power units (APU) with respect to the determination of the main advantages and difficultes in the construction of individual concepts. It also defines the trends in this area. Part of the thesis describes the possibility of using fuel cells as an energy source on board the airplane.
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Aircrafts auxiliary power units
Baran, Jan ; Klement, Josef (referee) ; Šplíchal, Miroslav (advisor)
This bachelors thesis describes concepts used airborne auxiliary power units (APU) with respect to the determination of the main advantages and difficultes in the construction of individual concepts. It also defines the trends in this area. Part of the thesis describes the possibility of using fuel cells as an energy source on board the airplane.
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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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