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Restoration of limestone in Grygov
Hlušková, Lenka ; Mikeš, Stanislav (referee) ; Guzdek, Adam (advisor) ; Šuhajda, Karel (advisor)
The subject of this bachelor thesis is reconstruction of historical building of the limestone in Grygov. This project is based on the subject AG034 Studio of Architectural Design IV - Restoration of Monuments. The main topic of the studio work was to think about the appropriate use of a building of limestone with the extant circular limekiln and adjacent area of former site of limestone, and to create an architectural study. The thesis include plan to convert building and adjacent land to the cultural-educational facility with camp. Rooms of building is going to be use for various cultural and non-cultural social events. The whole land is going to be recultivated and rearranged for use of citizen. It´s attempt to return to the original values of the building´s appearance. This values were suppress during the years. At the same time It´s preserve essence of its place. The new interventions are solved with respect to native construction. Together them are create harmonic connection between the old historical part and the new timeless part.
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Residual Service Lifetime of Furnaces in Petrochemical Industry
Horsák, Libor ; Vincour, Dušan (referee) ; Lukavský, Jiří (referee) ; Vejvoda, Stanislav (advisor)
The objectives of this work is residual lifetime of heaters in petrochemical industry. There is no comprehensive publication about this theme. This paper lists and describes the most of main phenomena that has to be taken into account in the process of determination of residual lifetime. This paper focuses on creep damage of a real heater based on deformation measurement. It describes some heater failures that could cause unplanned operation interruption however, appropriate intervention made possible safe heater operation until planned heater shutdown. No compact method is given how to determine heater residual lifetime, but a direction is given how a complex method of residual lifetime assessment of refinery heaters could be created.
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Model of electric furnance for heat-resistant material processing
Franek, Lešek ; Malounek, Petr (referee) ; Dvořáček, Martin (advisor)
Content of the document is to create model of kiln, compare result with the real kiln. There is described 3D design in SolidWorks application, creation of a physical model in COMSOL Multiphysics and its export to Simulink. Subsequently is described the Simulink scheme, functions of program parts and visualization in B&R Automation Studio. The obtained results are compared with measured values. There is also described the design of a controller with a off-line identification.
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Mini reflow oven
Pavelka, Radek ; Jelínek, Aleš (referee) ; Burian, František (advisor)
This thesis is aimed to design a small oven for PCB soldering using the reflow method. It contains description of the oven’s construction, it’s thermodynamic parameters and the design of the control and power unit PCB as well as their control software. A remote PC control and monitoring application is also a part of this thesis.
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Historical development of steel manufacturing processes in the 20th century
Vácha, Pavel ; Pernica, Vítězslav (referee) ; Šenberger, Jaroslav (advisor)
The introductory part of theses is devoted to the characteristics of the iron and steel, production of crude iron and steel. The following chapter focuses on the description of the processes of steel production during the period of industrial revolution. Theses is continuing with a part containing an overview of modern technologies for steel production in the 20th century. There are methods of steel production of its largest producers presented in the final part since the early 20th century to the present, focusing on the territory of today's Czech Republic with division into four periods.
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Slot antenna
Dvořák, Petr ; Horák, Jiří (referee) ; Láčík, Jaroslav (advisor)
This thesis discusses Slot antennas that are based in gap waveguide technology, which allows them to work with high frequency signals. It contains theoretical findings about antennas and waveguides, which are later used in the design. The practical section of this thesis concentrates on designing a specific gap waveguide for 10 and 24 GHz frequencies, starting with modeling and parameter optimalization. This gap waveguide is then used as a base for slot antenna design. The final antenna is designed for frequency of 10 GHz, for both linear and right-handed circular polarizations. With right-handed circular polarization, the achieved band was approximately 1.41 GHz, while the gain was 7,6 dB.
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Coke drying for calcium carbide production
Balko, Michal ; Ucekaj, Vladimír (referee) ; Jegla, Zdeněk (advisor)
The thesis deals with analysis of calcium carbide production process. The aim of the thesis is to identify and design savings resulting from the use of energy contained in flue gas, which is produced during the process. In the first part, history and applications of calcium carbide are presented. The thesis then contains mass and energy balance of calcium carbide production. Balance is related to 1 ton of the product. In conclusion, possibilities of flue gas use for coke drying are proposed. The thesis is based on the information from the calcium carbide factory located in Sundsvall, Sweden.
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Návrh automatizované vyhřívané pece pro testování FDM výtisků
Kodýtek, Jan
This bachelor thesis deals with the analysis, design, construction and optimization of a special furnace for heat treatment and testing of products manufactured by additive 3D printing technology. The first part of the thesis deals with a literature search of currently available industrial and DYI solutions. Based on the conducted research, a custom solution is proposed based on DIY (Do It Yourself) reflow oven projects, which are mainly used in the electronics sector for industrial soldering of components. The control of the furnace is implemented using ESP32 microcontroller and FreeRTOS operating system. All the necessary mechanical components were modelled in SolidWorks software and then manufactured either by 3D printing or conventional machining methods. The work also includes an oven control system that runs on the mentioned microcontroller, runing in access point mode and can therefore be remotely connected to it. The described control system also allows for the creation of custom predefined temperature profiles that can be reused. The proposed solution was subsequently tested with satisfactory results.
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Restoration of limestone in Grygov
Hlušková, Lenka ; Mikeš, Stanislav (referee) ; Guzdek, Adam (advisor) ; Šuhajda, Karel (advisor)
The subject of this bachelor thesis is reconstruction of historical building of the limestone in Grygov. This project is based on the subject AG034 Studio of Architectural Design IV - Restoration of Monuments. The main topic of the studio work was to think about the appropriate use of a building of limestone with the extant circular limekiln and adjacent area of former site of limestone, and to create an architectural study. The thesis include plan to convert building and adjacent land to the cultural-educational facility with camp. Rooms of building is going to be use for various cultural and non-cultural social events. The whole land is going to be recultivated and rearranged for use of citizen. It´s attempt to return to the original values of the building´s appearance. This values were suppress during the years. At the same time It´s preserve essence of its place. The new interventions are solved with respect to native construction. Together them are create harmonic connection between the old historical part and the new timeless part.
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