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Application of LED in Lighting Technology
Kolář, Pavel ; Bátora, Branislav (referee) ; Baxant, Petr (advisor)
Bachelor's thesis deals with basic principles of Light-Emitting Diodes, their supplying, characterization of these light sources in relation to application in luminaires, possibilities of application in standard practice and economical contribution of LED technology. It's mainly drawn from internet sources to this topic because manufacturers and distributors of lighting technology like Osram, Siteco, Philips, Bergquist, Cree, LEDfield and other companies provide a lot of catalogs with technical parameters and examples of applications on their webs.
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Frame of foundry trolley crane 330 t
Otevřel, Marek ; Kolář, Pavel (referee) ; Pokorný, Přemysl (advisor)
The topic of this diploma thesis is the frame of the foundry trolley crane 330/65/20t. The crane crab is used for handling with molten metal. The frame is analyzed by strength inspection and fatigue strength inspection. The process is according to ČSN EN 13001. The analyses are made by using finite element method on a beam and shell models. The diploma thesis was made in cooperation with the Královopolská a.s. company.
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Analysis of crab frame of bridge magnet crane 15t 27,5m
Strommer, Bohumír ; Kolář, Pavel (referee) ; Pokorný, Přemysl (advisor)
The diploma thesis deals with crab frame of bridge magnet crane with lifting capacity 15t used in steel mill for handling billets. Thesis contains strength analysis and fatigue strength check of crab frame based on ČSN EN 13001. Strength analyses are made by using beam and shell models of finite element method. The diploma thesis was carried out in cooperation with Královopolská a.s. company.
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Program for calculation of ventilation and heating in synchronous machine
Kolář, Pavel ; Ondrůšek, Čestmír (referee) ; Huzlík, Rostislav (advisor)
This master´s thesis deals with ventilation of synchronous generators with a cylindrical rotor. For the design of ventilation we apply basic physical laws in the field of hydromechanics and thermomechanics. Therefore the first chapters are devoted to these subjects. They are followed by the description of ventilation systems and a thermal net is created and solved for one of them consisting of the thermal resistance and sources. The final part deals with a program, which I developed in Visual Basic 2008 Express Edition. This program enables to calculate the ventilation and heating of individual parts of the machine after entering basic machine dimensions and losses.
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