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Design of industrial boiler with cogeneration
Mička, Radek ; Tvarůžek, Martin (referee) ; Křenek, Ladislav (advisor)
The diploma thesis deals with the design of the industrial boiler for biomass, Which deals with the issue of the energy future of combustion of fuels using current power generation - microcogeneration, designed for larger houses or smaller com- panies. The shape of the device is the interconnection of individual functional and technological parts of the boiler, a view of a new product that re ects its function. It uses modern and timeless materials, color and control technology to achieve overall comfort and time savings and service.
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Energetická bilance sušáren zrnin
KUBEŠ, Jan
This thesis deals with the energy balance of grain drying. The theoretical part includes information about types of drying equipment and grain transportation devices. Then I handled with a grain dryer from "Bühler", its construction and power consumption during grain drying.
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The Analysis of Factors Affecting Electricity Consumption
Seiml, Jan ; Mařica, Lukáš (referee) ; Toman, Petr (advisor)
The aim of this thesis is to describe the course of consumption of electricity. One of the feasible ways of description is statistical analysis, which enables to calculate statistically significant factors and their combinations that contributed to the course of consumption of electricity. These factors may be used for modulation of future electricity consumption, and therefore also for long-time prediction. The second chapter discusses the expansion of electricity usage in the Czech Republic from the turn of the 19th century until nowadays. The chapter describes the development of transmission system, development of electricity consumption in the sectors of the national economy, possibilities of using electric energy, and overall balance of electricity and sources of energy. The third chapter presents an overview of usage and consumption of electrical energy in the neighboring European countries as well as in the most interesting countries of the World. The fourth chapter contains statistical analysis. The first part of the chapter details a list of the analyzed quantities of individual consumptions, of the investigated factors, and the analyzed countries. Further, the chapter explains the method of statistical analysis via using simple and multiple regression and its subsequent application and evaluation for the Czech Republic and the others European countries. According to the result, it is GDP that has the main impact on the trends in the course of consumption of electricity. However, it is necessary to consider other factors influencing the consumption of electricity, too, and not rely solely on GDP in terms of long-time prediction of electricity consumption. The fifth chapter discusses the reduction of electricity consumption and savings, which can be both political and macroeconomic result. Quantification of savings is not always unequivocal and any cost-saving actions can lead to an increase in electricity consumption, which can, in effect, be bigger than any possible savings.
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A Common European Energy Policy: Perspectives and Limits of Cooperation
Kupka, Jiří ; Jireš, Jan (advisor) ; Polášek, Martin (referee)
A Common European Energy Policy: Perspectives and Limits of Cooperation ABSTRACT (Jiří Kupka) The aim of the work is to assess the prospects and limits of cooperation in the area of European Union Energy Policy and it primarily from the perspective of the Member States. To this purpose, there is a research of an evolution of integration in the energy field (pointed contemporary development - i.e. mainly the last twelve years), approach of the European Commission and in particular there are attitudes and the energy policies of the two EU Member States - France and Germany. The whole work is divided into two main parts - a theoretical section and an empirical analysis. In the first part, the author seeks to define the terms "Energy security" and "Energy Policy" from the perspective of several authors. Subsequently, it is carried out the examination of the development of Energy policy of EU - the European Commission initiatives are researched in particular. Besides, it is examined and evaluated the current status of the implementation of the Union's actions (policy) - especially in area of the individual systems of energy markets of the aforementioned states.
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Solved Problems in Electromagnetism for Electronic Collection
Pošta, Petr ; Koupilová, Zdeňka (advisor) ; Ledvinka, Tomáš (referee)
This thesis is a follow-up to several bachelor and diploma theses which were dedicated to creating solved problems for Electronic Collection of Solved Problems in Electromagnetism. The first goal of this thesis was to make a short survey about electronic resources in electromagnetism, especially those which contain solved problems and provide open access to their contents. The second goal was to make a small collection of solved problems in this area which would be suitable for undergraduate students and which would fill in chapters with little amount of problems in the Electronic Collection. This Electronic Collection is openly accesible on the website of Department of Physics Education. Total of 30 solved problems have been made in this thesis, including hints, detailed solutions and suitable pictures. Methodical comments are also available for almost all problems.
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The implementation of the reverse-charge mechanism on selected goods
Pinďák, Adam ; Zídková, Hana (advisor) ; Čejková, Eliška (referee)
This thesis is focused on the implementation of the reverse charge mechanism on supplies of electricity and gas, which was imposed on these goods on 1st February 2016. The main aim of the thesis is to determine whether carousel frauds in our territory disappeared after the introduction of the reverse charge mechanism and to attempt to estimate the amount of tax evasion before the implementation. The other topics in the thesis include a description of principles of carousel frauds and measures adopted in order to eliminate them as well as an evaluation of the contemporary level of implementation of this mechanism in the Czech Republic and other EU countries. The analysis of foreign trade statistics has indicated a significant decrease in these figures as a consequence of a possible elimination of related carousel frauds. The estimation of the amount of tax evasion in the period of six months before the implementation achieved 1.05 billion CZK.
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Optimation and Innovation of Family Houses Heating
Dubnický, Ladislav ; Špiláček, Michal (referee) ; Lisý, Martin (advisor)
The aim of this bachelor thesis is to make a summary of knowledge of today´s modern heating systems for family houses. Each types of systems are compared to each other from economic, operating and ecologic point of view. At the end of the thesis there is a model conversion of energetic costs for specific family house and projection of new heating system.
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Electric and Hybrid Vehicles
Kosík, Jaroslav ; Mikulčík, Aleš (referee) ; Hájek, Vítězslav (advisor)
This bachelor`s thesis is specialized on obtaining basic piece of electric and hybrid vehicles and their development. The first part of the work deals with electrical vehicles, their history and the possible development of these vehicles can take. In the next section is an example use of electric vehicles in the practical traffic. It is stated these vehicles compared with vehicles using the type of propulsion, such as cars with combustion engines or hybrid vehicles. At the end of chapter is supplemented by specific examples of photographic electrical vehicles. The third part of the work deals with the expected development of electric and hybrid vehicles. There is also a description of hybrid vehicles, and their comparisions with other vehicles using the drive as well as other examples of hybrid vehicles.
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Possibilities of Solar Chimney Power Plants
Moravčík, Martin ; Macháček, Jan (referee) ; Procházka, Zdeněk (advisor)
This thesis contains teoretical summary of present situation of problems involved in solar chimneys development. In the first chapter there are mathematical methods for describing the functions of solar chimneys in general. It establishes figures for power output, efficiency, speed of flow inside the chimney and figures for desinging solar chimney. In the next chaper there is a division of solar chimneys and it mainly focuses on describing the solar updraft towers and solar floating chimneys. And marginally it focuses on solar downdraft towers. Next there are possibilities how to use principle of solar chimney for air conditioning and ventilation. In the next chapter it describes the use of solar chimneys, with cogeneration, hydrogen production, in cooling towers and chimneys, and there is also fully described the project in Manzanares. In the fifth chapter it describes the economy of the two comparative projects of solar chimneys, which are at the end economically analyzed and assessed. The last chapter is a summary of the objectives of this thesis, and the subsequent approach is described too and at last there is also evaluation of solar chimneys and the conclusion of this thesis.
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