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Super Grids Conception
Chodura, Przemysław ; Prokop, Václav (referee) ; Paar, Martin (advisor)
Cílem bakalářské práce “Super Grids Conception” je poskytnout komplexní náhled na problematiku Super Gridů ve smyslu pozadí, konceptu jako takového, dostupných technologií, dosavadních zkušeností a budoucího vývoje, možných zdrojů elektrické energie a konkrétních konceptů a studií. V úvodu jsou osvětleny důvody vedoucí k potřebě elektrických sítí nové generace – celosvětové snahy snižovat dopad výroby elektrické energie na životní prostředí, rostoucí poptávka po elektrické energii a potřeba integrovat obnovitelné zdroje energie. Možné zdroje elektrické energie jsou diskutovány jak v širším kontextu, tak i ve smyslu současných omezení a budoucího vývoje. V druhé části jsou popsány koncepty Smart Gridu, Super Gridu a SuperSmart Gridu s důrazem na přínosy, základní principy a systémové hledisko. Autor se dále zabývá jen koncepcí Super Gridu. Použití stejnosměrných (HVDC) a střídavých (HVAC) technologií je porovnáno z technického i ekonomického hlediska a z něj vycházející typické použití těchto technologií. Dále je podrobně popsána nejlepší dostupná technologie HVDC systémů – základní principy a konfigurace, popis jednotlivých částí, omezení současných technologií, dosavadní zkušenosti a možný prostor pro další vývoj. Následuje zmínka nových výzev oblasti HVAC technologií ve vztahu k Super Gridům a popis problémů souvisejících s hybridními AC/DC linkami a koridory. V poslední části jsou vysvětleny rozdíly v historickém vývoji a současných postojích v různých částech světa. Zároveň jsou představeny koncepce zvažovaných Super Gridů. Zvláštní prostor je poskytnut vizionářské koncepci vytvořené DESERTEC Foundation a technickoekonomické studii OffshoreGrid.
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Test bend for vehicle air-conditioning testing
Andrýs, Jan ; Hejčík, Jiří (referee) ; Štětina, Josef (advisor)
The aim of this work was to design test bend for vehicle air-conditioning. This test bend should simulate interior of the car and the engine compartment. Electric motor is used to drive compressor in test bend. Air supplied to test bend is modified to extreme conditions and the volume of supplied air is the same as the car drove at 50 km/h. Main frame of test bend is made from aluminium profiles manufactured by Bosch Rexroth, which provides great modularity. Walls are made from insulated panels by ELCOM System, they have very good insulation and are strong so additional equipment can be installed inside. Construction design was made is SolidWorks with 3D models of test bend as output. Air-conditong parts which were used as samples are originally from Skoda Octavia II. For this vehicle were made calculations of heat loads. In conclusion is simple testing example for this test bend and although there are some examples for future measuring.
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Analysis of operating data from the student centre at the Faculty of Information Technologies
Suchá, Petra ; Jaroš, Michal (referee) ; Charvát, Pavel (advisor)
This diploma thesis is dedicated to the analysis of operating data from the Brewery, a former industrial building, which has been reconstructed to a student centre of the Faculty of Information Technologies. The main goal of the work was to analyze the performance of the building and to evaluate energy savings originating from the energy saving measures that were applied during the retrofit.. The first part of the thesis focuses on the particular energy saving measures and the predictions of energy savings. The second part presents the results of the monitoring of the building and the HVAC systems during the first year of the operation of the Brewery.
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Variant solutions reconstruction of airconditioning systems in the laboratory
Faltys, Michal ; Andrys, Petr (referee) ; Rubina, Aleš (advisor)
The diploma thesis deals with the designing and assessment of two variants of the reconstruction of the air conditioning system for the half of 3rd floor laboratory building BioVendor – Laboratorní medicína a.s. company. The system is proposed to fulfil hygienic, operational, economic and functional requirements for indoor microclimate of laboratories. The task of this system is the transport of fresh air to interior and the covering of heat gains in summer. The equipment is also designed for the regulation of air humidity in the interior. The theoretical part deals with the application of heat penetration of solar radiation double glazed construction. Calculating and project part deals with the specific proposal of two variants of a new HVAC system-level studies of which the selected variant is developed as the project documentation. Experimental part is devoted to measuring of CO2 concentration in operationally similar laboratory. The result of this work is to evaluate the operational and economic impacts on the choice of technically feasible options and implementation documentation selected option. The benefit of the experiment is to verify sufficient air exchange to ensure the optimum concentration of carbon dioxide in laboratories.
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HVAC systems for sustainable buildings
Švub, Oldřich ; Rubina, Aleš (referee) ; Rubinová, Olga (advisor)
Diploma thesis deals with relationship between the sustainability of buildings and indoor climate. The aim of the diploma thesis was to design the air conditioning system for operating theaters. In the experimental part the aim was to provide total microorganisms counts and total count of micromycetes on samples taken from filters. The work is divided into three parts: theoretical, design and experiment.
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Economic effectiveness of systems wiring
Jorda, Martin ; Bátora, Branislav (referee) ; Macháček, Jan (advisor)
This master’s thesis tries to show the differences between usual obsolete indoor wiring and clas-sic indoor wiring used these days and also between this „classic“ indoor wiring and „intelligent wiring“. There is insisted on selection and optimalization of the adequate system for a concrete building and there is made a question of specifications of the user or the customer, his preferen-ces (financial, space, family etc.), disadvantages and advantages of the current system. Whereas it’s impossible to satisfy all the users in these problems by reason of diversity of the buildings (it can be a lot of variants of family houses or small apartments), the systems in this thesis are ap-plied only on the most frequent types of houses. Quite lot of firms deal in this country with indo-or wiring, the most known are ABB, ELKO EP and Moeller. Each of these firms offers different alternatives of systems. From the simplest, basic alternative, to most sophisticated „intelligent“ systems, which can care about almost everything, what is common with electrical energy. These different systems, their review, advantages and disadvantages are also presented in this work. Preliminary there is analysed the whole issue from the historical view and there is briefly explai-ned, what the system wiring is. In the next chapter there is a complex description of the actual state of known firms and systems on the present-day market in our country and in the world. The-re is also summarised the basic structure and the overall comparison of the most frequently used bus systems. In the next two chapters there are presented the main objectives of this work and the methods and procedures, how to achieve these objectives. The central part of this work is the next to last chapter, in which there are presented the different model variants of the project, applied to the real residential building - middle-sized family house. That is realized on the basis of the spe-cified requirements on the designed system. Before that there was performed the complex design of the situation scheme of all usual electrical appliances and lighting system in the house. In the end the whole work is in summary analysed, mainly in term of costs of each variant of the pro-ject. By virtue of this can the reader make a better view about the whole financial problem of the system wiring, that means, how much he has to invest in his concrete wiring. In the end of the work there is attached the detailed documentation to all alternatives of the project, such as dra-wings (complex horizontal plans) and costs budget of all used items and the wiring material.
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The course of energy prices since 1989 and its impact on HVAC
Kudela, Libor ; Klimeš, Lubomír (referee) ; Jaroš, Michal (advisor)
The aim of this thesis is to compile data about prices of basic energy used in HVAC in region of Czech Republic since 1989, analyse its course and purchasing power of Czech population. This thesis has also concerned advantages and pertinent impacts on preferred ways of improving indoor conditions. Based on this knowledge a recommendation for choosing heating system for residential building was drawn up.
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Heating, ventilating and air-conditioning in energy-efficient buildings
Vogel, Jan ; Pech, Ondřej (referee) ; Charvát, Pavel (advisor)
The bachelor’s thesis deals with heating, ventilating and air-conditioning in energy-efficient buildings. The first part of the thesis provides an overview of suitable met-hods of heating, ventilating and air-conditioning for energy-efficient buildings. The second part contains the evaluation of suitability of these methods in newly built fami-ly houses and apartment buildings and also in building energy retrofits.
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