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Complex lighting system
Šipr, Jan ; Hadinec, Michal (referee) ; Friedl, Martin (advisor)
This paper deals with the theoretical basic principles of lighting and regulation. On the basis of theoretical knowledge, there was task to design a lighting system tailored to your needs. Additionally, there is a communication protocols used in lighting technology DMX and ArtNet.
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Management of Heating Energy at Home
Dohnal, Stanislav ; Grepl, Jan (referee) ; Kříž, Jiří (advisor)
The aim is to adapt the old heating system so that the new system will meet the needs of users and facilitate control of system. The new heating system can independently control heating automatically. Its important part is remote access to system control. The user always has up-to-date information and can adjust the heating to suit his needs.
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Heating of flat house
Hánl, Jiří ; Počinková, Marcela (referee) ; Topič, Jan (advisor)
The theme of my bachelor´s thesis is heating proposal and hot water preparation in apartment house. The teoretical part is focud on applicability and constructional solution of fittings. The calculating part consists of heat source proposal, hot water preparation, distribution of heating water and heating elements design. In the building there are proposed two heat sources, the first one for heating water and the second one for hot water preparation. The heating elemets are panel, tubular and floor convectors. The project part consists of technical report and drawing doocumentation.
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Change of voltage at LV terminals of a MV/LV power distribution transformer caused by changes in its load
Jandora, Jiří ; Bátora, Branislav (referee) ; Blažek, Vladimír (advisor)
The thesis deals with the use of distribution transformers, their integration into the electrical network, their properties, and principles and means of regulation according to changes in load. The introductory chapter is devoted mainly to the theoretical background concerning the functioning of the transformers. Even though it is not the focus of this thesis, a brief summary of their structure will be provided because it is presumed that not all the readers are familiar with this particular electrical network block and thus they should be explained how the transformer works. Then the ways of transformer regulation will be outlined. In the theoretical part, the important point for the reader is the substitution of the transformer by two-port network i.e. the equivalent circuit. The two-port network is a substitution of the connection properties by simple electric elements, which are not so problematic for further use. When dealing with the two-port networks in the chosen equivalent circuit, Blondel’s constants will be used. Blondel’s constants facilitate working with the basic network invariables of the circuit such as amperage, voltage and power. The second part of the thesis is devoted to solving a problem that involves the use of distribution transformers. The problem is as follows: there is a manufacturing plant with three transformers, each of them having rated power and nominal transformation ratio. The manufacturing plant is supplied by HV three-phase line with rated voltage and parameters given by the distribution point, where constant voltage is maintained. The task is to determine in what ways the voltage of the low voltage terminals of the transformers will change when changing the power from idling circuit to the rated load. The power factor should be constant. The method for solving this task has already been outlined in the theoretical part. The results are summed up in a simple chart completed with diagrams, which concisely describe the result of the research.
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PH controller for aquarium
Dvořák, Jan ; Fedra, Zbyněk (referee) ; Šebesta, Jiří (advisor)
This bachelor’s thesis deals with the system which is designed as a pH regulator for aquarium water. The first and second chapter are aims to the basic requirements and possibilities on controlling of the potential of hydrogen in water. Main methods of the pH measuring, its controlling and regulation are included. The third chapter presents a design of the pH regulator system. The practical and software solution of this project is presented in the fourth and fifth chapter. There are described in detail the main blocks of the pH regulator - amplifier, galvanic isolator and output power stage. The results of the testing and measuring of the designed subsystems are introduced in the last part of the work.
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Herzlich Willkommen
Dimitrov, Georgi ; Zein, Lynda (referee) ; Kristek, Jan (advisor)
The diploma project is a polemic on the current state of the Czech border region and a speculation on its future development. A test case is the settlement of Hatě, which is part of Chvalovice, a municipality located close to the border with Austria. Hatě is a specific territory - an urban structure that was created in the 1990s right at the border crossing, in the former duty-free zone, and even after its disappearance it is developing into a large commercial and entertainment zone. It targets mainly visitors from Austria, coming to the Czech Republic in search of cheaper goods and services. Hatě is not the only such example - commercial and entertainment zones are regularly repeated at all major border crossings between the Czech Republic and Austria or Germany. The places are defined by bizarre aesthetics, "decadent" businesses and deregulation - as if almost anything is possible here. The project is based on personal experiences with the territory, an attempt to come to terms with a place defined by total non-architecture and asks what is the position of an architect in such a space. Hatě is the antithesis of the city, a "zone" for escaping the everyday, a place that contradicts the basic principles of urbanism. It is a place that offers a reflection on both society and the profession of architecture itself. The work deals not only with the "zone" in Hatě, but also with the municipality of Chvalovice, in whose cadastral territory Hatě is located. Through the mutual synergy of these two places, the project speculates on the possible future development of the area. The polemic is based on the acceleration of the development of the area, which is pushed to the extreme by the proposal. The subject of the proposal is a conceptual master plan or a spatial study that speculates on the possible masterplan of the area of Chvalovice together with the settlement of Hatě.
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Pressure losses in heating systems
Švanda, Martin ; Horká, Lucie (referee) ; Počinková, Marcela (advisor)
This diploma thesis deals with pressure losses in heating systems. The diploma thesis is divided into three sections. The first part is theoretical and deals with the occurrence of pressure losses. It discusses the properties of the fluid that affect pressure losses. It also deals with hydrodynamic phenomena, flow distribution, pressure loss distribution and its calculations. The aim of the second part, which is practical, was to create a heating project for a selected object. The object is a two-floor kindergarten building located in Velké Němčice. For this project, two heating variants were created. For the first variant, radiators and heating benches were designed and for the second variant, underfloor heating was installed in the building. The goal was to use a source which will gain heat mainly from renewable sources, so the air / water heat pump was chosen as the source of heat production. The project ends with a technical report. The third part of the thesis is dedicated to an experiment which purpose was to find out how the pressure losses of the connecting pieces are reacting to the change with the change of the heating water conditions (flow, temperature). Alongside, two pipes were created which differed in the type of connecting pieces so it allowed to compare how their pressure losses differ. Both pipes were connected by radial pressing, but the fittings differed in the quality of the brass, and therefore in the construction. Also, part of the experimental section of the diploma thesis is a description of the course of radial pressing of fittings from the Herz company.
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Modern trends in engine forced induction
Podhora, David ; Zubík, Martin (referee) ; Knotek, Jiří (advisor)
The goal of this bachelor thesis is to summarize the fundamental knowledge about supercharging the combustion engines, whereas the emphasis is on the modern trends of this branch. The first two chapters are aiming at the basic principles and reasons for using the supercharging method. Further on, this thesis explains the individual elements of supercharging systems and their possible arrangement. The last part is disserting on the most actual modern trends at supercharging of the combustion engines.
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Control of linear drives HIWIN
Roman, Jan ; Kaván, Martin (referee) ; Houška, Pavel (advisor)
The diploma thesis deals with three phase linear synchronous electric motors mounted on linear drive, its system of sensors and control. The analysis of working principle and classification of linear motor was done in the beginning part; analysis of the drives sensors system was made in the following chapter. The thesis also deals with the driver from the automation point of view, its tuning and behavior according to high dynamics and precise positioning. The last chapter discusses the issue of controlling two linear drives. Whole thesis was realized on a borrowed linear motor with driver from HIWIN corp.
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