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Thermal simulation for space applications
Kostelník, Tomáš ; Maxa, Jiří (referee) ; Vyroubal, Petr (advisor)
This master´s thesis is focused on the problem of modelling heat transfer in Earth orbit. In the theoretical part, the main types of standard orbits are described, including terminology related to this issue. Furthermore, the subsystems of space probes are described with a focus on a specific description of their functions. The thesis also includes a discussion of the issues related to thermal management of space satellites, with a focus on multilayer insulation and thermal surface finishes. The work also includes a description of the various mechanisms of heat transfer in space, with a deeper focus on thermal radiation heat transfer, which is key in the context of this thesis. The experimental part is focused on the design of a calculator focused on the computation of radiation boundary conditions for different orbits of a space vehicle and their verification using a CFD solver on a model example of a cubesat.
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Sample preparation and their measurement by EDS methods
Kostelník, Tomáš ; Jaššo, Kamil (referee) ; Čudek, Pavel (advisor)
This bachelor´s thesis is focused on preparation and analysis of samples by energy dispersive spectroscopy using scanning electron microscopy. In the theoretical the main differences between environmental scanning electron microscopy and scanning electron microscopy are described. There is also a description of basic knowledge regarding energy dispersive spectroscopy. The generation and detection of signals arising from the interaction of a beam of primary electrons with a sample is also explained, with emphasis on the description, generation and distribution of these signals. The experimental part is focused on sample preparation and analysis.
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Sample preparation and their measurement by EDS methods
Kostelník, Tomáš ; Jaššo, Kamil (referee) ; Čudek, Pavel (advisor)
This bachelor´s thesis is focused on preparation and analysis of samples by energy dispersive spectroscopy using scanning electron microscopy. In the theoretical the main differences between environmental scanning electron microscopy and scanning electron microscopy are described. There is also a description of basic knowledge regarding energy dispersive spectroscopy. The generation and detection of signals arising from the interaction of a beam of primary electrons with a sample is also explained, with emphasis on the description, generation and distribution of these signals. The experimental part is focused on sample preparation and analysis.
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