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Supercritical Steam Boiler
Loucký, Matyáš ; Zlevorová, Tereza (referee) ; Lisý, Martin (advisor)
This bachelor‘s thesis is specialized research dealing with the construction of steam boilers focused on modern supercritical steam boilers. It processes an overview of individual concepts of steam boilers and more detailed description of the parts that steam boilers are made of. The next part of thesis is dedicated to the issue related to the operation of boilers capable of working with supercritical steam parametres. Final part deals with the application of this technology in coal–fired power plants.
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Advanced filaments for FDM/FFF 3D printing
Kučera, Jan ; Vespalec, Arnošt (referee) ; Koutecký, Tomáš (advisor)
The bachelor thesis deals with the issue of FDM/FFF 3D printing with a focus on rapidly evolving new filaments and their use in industry. The aim of this work is to display a large number of filaments that have been tested and to categorize them into individual groups for future use. Selected tested materials from scientific studies address both the mechanical properties of individual pure filaments and the effect of additives to these filaments. The analysis of these works then showed that the effect of carbon fiber varies according to the type of base material and the weight percentage of filling. From a practical point of view, the results of this work can be used in the choice of material for printing models and prototypes for own usage.
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Supercritical Steam Boiler
Loucký, Matyáš ; Zlevorová, Tereza (referee) ; Lisý, Martin (advisor)
This bachelor‘s thesis is specialized research dealing with the construction of steam boilers focused on modern supercritical steam boilers. It processes an overview of individual concepts of steam boilers and more detailed description of the parts that steam boilers are made of. The next part of thesis is dedicated to the issue related to the operation of boilers capable of working with supercritical steam parametres. Final part deals with the application of this technology in coal–fired power plants.
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Advanced filaments for FDM/FFF 3D printing
Kučera, Jan ; Vespalec, Arnošt (referee) ; Koutecký, Tomáš (advisor)
The bachelor thesis deals with the issue of FDM/FFF 3D printing with a focus on rapidly evolving new filaments and their use in industry. The aim of this work is to display a large number of filaments that have been tested and to categorize them into individual groups for future use. Selected tested materials from scientific studies address both the mechanical properties of individual pure filaments and the effect of additives to these filaments. The analysis of these works then showed that the effect of carbon fiber varies according to the type of base material and the weight percentage of filling. From a practical point of view, the results of this work can be used in the choice of material for printing models and prototypes for own usage.
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STUDY OF COMPLICATED CRYSTAL STRUCTURES BY MEANS OF SLOW ELECTRONS
Mikmeková, Šárka ; Kasl, Josef (referee) ; Švejcar, Jiří (referee) ; Frank, Luděk (advisor)
Methods for examination of the crystal structure of crystalline materials include the X-Ray, neutron and synchrotron-radiation diffraction, electron backscattered diffraction in the scanning electron microscope, scanning transmission electron microscopy, transmission electron microscopy and focused ion beam microscopy. The scanning low energy electron microscopy (SLEEM) is less known as yet but already has proven itself very powerful tool for studies of the crystal lattice. By means of very slow electrons reflected from the sample and effectively detected in their full angular and energy distribution the crystalline structure is imaged at high spatial resolution and high contrast is obtained between differently oriented grains in polycrystals. Because of high sensitivity of the image signal to the inner potential distribution in the sample even details like subgrains or twins as well as strain at the microstructural level can be visualized. The aim of this thesis is to demonstrate the scanning low energy electron microscopy as an effective tool for investigation of wide range of materials like steels, non-ferrous alloys and ultra-fine grained materials.
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