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High efficiency laboratory power supply
Tejmlová, Lenka ; Vochyán, Josef (referee) ; Petržela, Jiří (advisor)
The project shows the problems of power supply in electrical engineering. It describes the general parameters of these types of supplies and presents their characteristics. Based on these findings, it is also focused on the selection of specific elements of the laboratory supply, to reach the given parameters. It contains the recalculations of the parameters of other additional components. The overall scheme of the supply is divided into several blocks, thematically corresponded to subchapters. According to the accomplished concept the laboratory supply is realized and its parameters had been tested. Projects results are assessed at the end.
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Luminaires and Applications with Power LEDs
Vaňko, Adam ; Pavelka, Tomáš (referee) ; Baxant, Petr (advisor)
Progress in development of modern LEDs, their long lifetime and high luminous efficacy predetermine them for usage in lighting systems. This master's thesis examines possibilities of application of LEDs in luminaires, parameters of diodes and problems, which can appear in construction of luminaire with LED lighting source. In the practical part of this thesis a luminaire is designed, capable of illuminating traffic signs, vertical surfaces, billboards and fasades. By standards required parameters of a lighting system and adaptability of application must be considered in complex predesign. Simulations of lighting scene, created in special computer software, measurements of optical point’s parameters and construction of real luminaire model using high quality CREE LEDs, are included in analysis of the problem. Parameters of the luminaire were proved by measurements of product’s attributes at light laboratory. There are also some suggestions for improvement and further development of the product.
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Communication module for power supplies controlling
Zachar, Jiří ; Šmíd, Petr (referee) ; Dřínovský, Jiří (advisor)
The aim of this work is to design a communication module for laboratory source Manson. This power supply communicates only through a serial RS-232 link. Modern computers usually use for the connection with other peripherals mainly USB. Designed communication module contains converter between the RS-232 and USB. Power supply is used in the automated measurement setup, which is controlled from the Virtual Engineering Environment from the Agilent Technologies. Direct commands for laboratory source Manson are not compatible with the SCPI (Standard Commands for Programmable Instruments) standard commands. So, the communication module converts commands from the SCPI format to Manson supply instructions. The communication with the Manson supply will be obvious for students by using new communication module.
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Thermoelectric cooler construction
Murgaš, Martin ; Šnajdárek, Ladislav (referee) ; Brázdil, Marian (advisor)
Bachelor thesis will concern description of Peltier modules and detailed description of thermoelectric phenomena’s on which is principle of these modules based on. Thermoelectric materials and their properties will be mentioned as well as different applications of Peltier modules. Heat losses of the cooler will be described. Onwards it describes mathematical model of Peltier modules and their coefficient of performance. Also mounting of modules, types of power supply and types of regulation are mentioned. Experimental part consists of calculation and designing of cooling assembly.
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The 4th generation of nuclear reactors
Katzer, Milan ; Škvařil, Jan (referee) ; Nerud, Pavel (advisor)
My thesis reviews the particular generations of nuclear reactors. The greatest part of the thesis focuses on the groundbreaking projects of the IV.generation reactors, which should be put into operation in 2030 or later. The individual projects come out from the analysis of the international forum GIF where six revolutionary nuclear reactors were chosen. The last chapter is devoted to the detailed description of one of the chosen reactors and its possible installation in the Czech Republic.
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Review of world nuclear reactors
Blažková, Eva ; Nerud, Pavel (referee) ; Šen, Hugo (advisor)
This bachelor work is focused on creating an overview of nuclear reactor types, their categorization and engineering approach to particular designs. Furthermore, it also lists countries having nuclear reactors in possession and their standpoint towards nuclear energy in general. A brief summary of the third and fourth generation and their future energy potential is included as well. This work primarily reflects present-day status.
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Innovation of information systems in enterprises, particularly in the utility market segment
Maloš, Martin ; Žid, Norbert (advisor) ; Tůma, Jiří (referee) ; Hübner, Miroslav (referee)
This thesis addresses the innovation of information systems in enterprises, particularly in the utility market segment. The thesis starts with a definition of utilities, a market segment containing companies involved in generation, transmission, distribution and retail of energy services as well as other companies providing related networked services. The aims of this thesis are both theoretical and practical. The theoretical part offers a new theory for IS innovations for the selected segment and for the relation between the innovation and the architectures of IS. In the practical part, the author identifies current challenges and opportunities in the selected market segment and offers scenarios and visions for future development. The first part of the thesis maps out the general innovation theories in the context of the selected topic. The second part introduces a new innovation theory based on an analysis of the specific conditions in the utility market segment. The next section focuses on the topic of IS architecture and its ability for tracking and managing the changes of the IS during the innovation process. The following part relays designs for specific architecture models supporting the current innovation trends in the utility market. The final part of the thesis summarizes particular business recommendations for innovation procedures in utilities, identifies innovation opportunities, and inspires visions for the future development of the market. The opportunities are related to a new way of understanding the role of IS in utility companies. IS provides a portfolio of information services to support the customer oriented business services, advanced services with added value and tailor made services for specific customer groups.
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Trade relations between the European Union and the Russian Federation
Veselka, Miroslav ; Petříček, Václav (advisor) ; Bolotov, Ilya (referee)
The thesis is focused on the analysis of the trade relations between the European Union and Russia. It describes macroeconomic figures of both partners. One chapter is about trade relations between the Czech Republic and the Russian Federation. There is the part explaining trade in energy commodities and energy policy issues of the RF and the EU. A practical example and experience of the sales director from the company, which used to have wide business connections with Russian partners, are also included. Finally, the perspective branches for trading are mentionned. One of them is for instance nanotechnology. The aim of the thesis is to analyze the nowadays situation and potencial for future economic cooperation.
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