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Economical appraising of run the power from cogeneration units to different voltage level
Doležal, Václav ; Macháček, Jan (referee) ; Baxant, Petr (advisor)
The topic of the thesis is economical appraising of run the power from cogeneration units to different voltage level. There is sloves in the text, how and under what conditions we can find an optimal solution for the deployment of cogeneration units to the electricity network. The main criterion is the loss of networks and their economic evaluation. We are a description of the different types of cogeneration units, the economic balance and a treatise on losses in electrical networks.
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The price of electricity and the choice of appropriate distribution rate
Hromek, Lukáš ; Ptáček, Michal (referee) ; Macháček, Jan (advisor)
This work is focused on the price of electricity, components that compose and factors affecting this price. Includes brief overview of energy legislation, namely to the rights and obligations of distributors of electricity, energy traders and customers. Furthermore, the work deals with the researches of the energy market in the Czech Republic, the different rates of selected suppliers and evaluating their suitability for the customer.
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Design and computer control of intelligent wiring system Ego-n
Hubálek, Michal ; Macháček, Jan (referee) ; Bátora, Branislav (advisor)
Bachelor thesis addresses the issue of smart wiring for household management. It is focused primarily on the modern system of Ego-n by ABB s.r.o., which is commonly available on the Czech market. It first explains the differences among individual intelligent electrical systems that are used here in our country. These systems are divided into groups and briefly described. This is followed by an introduction into the Ego-n system, formulation of basic principles of the system, its capabilities and applications. Most of the work is focused on the production and "Revival" of the laboratory panel of intelligent electrical set Ego-n. Laboratory panel is to demonstrate the functions of controlling the lighting, blinds, heating and other circuits. Programming of the laboratory panel can be manual or made by computer. For both options there are laboratory instructions written for practicing the various functions. The work also includes budget and a list of materials for the manufacturing of the laboratory panel and its wiring.
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Calculation and design of electric underfloor heating according to CSN
Urbánek, Jaroslav ; Šlezingr, Jan (referee) ; Macháček, Jan (advisor)
This thesis deals with the issue of electric underfloor heating and various types of heating elements such as heating cables, heating mats and heating foils. The thesis also contains elements that are important in the implementation of underfloor heating. Part of this work are listed standards addressing the issue of underfloor heating. In the final part there is a proposal of underfloor heating and photovoltaic system for a family house with the economic evaluation as an integral part of the issue.
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Remote control and visualization of bus-systems KNX and DALI for building management
Holub, Jiří ; Macháček, Jan (referee) ; Bátora, Branislav (advisor)
The thesis is focused on bus systems and their control by GUI. Basic energy management principles and the mostly known bus systems are analysed in the first – theoretical part of the paper. The theoretical part is then focused on software tool ETS 4, which is used for activation of system installation KNX. Software tool SmartServer, which is used for communication between bus system KNX and web interface, is described at the end of the first theoretical part. Two laboratory boards assembled of KNX and DALI parts were constructed in the second – practical part. Three laboratory tasks, which are prepared so they are related to theoretical description in previous part, were submitted in next step. Aim of the first task is to introduce basics of the board and PriOn interface. The second task is focused on DALI components and temperature control with PriOn regulating device. Creating of basic visualization and controlling of the board with SmartServer is described in the last task.
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Possibilities of Using Thermoelectric Converters in Power Industry
Halas, Miroslav ; Bartošík, Tomáš (referee) ; Macháček, Jan (advisor)
This thesis deals with thermoelectric transformers and their application in electrical power engineering. First, a theoretical overview is shown within which major personalities of the thermoelectric field are presented. Then, construction, functionality and fabrication materials of the thermoelectric transformer are outlined. The next part covers utilization of thermoelectric transformers within electrical power engineering through the history up until now. Also major world-leading companies are presented. In the practical part, the possibilities of thermoelectric transformers in conjunction with primary power sources are shown. Then, power output of solar thermoelectric transformer during winter is calculated using balance methods. At the end, a design of thermoelectric transformer exploiting waste heat of coal power plant and its rate of return are presented. In the conclusion, findings made during this study are summed and a complex assessment of the topic is done.
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The Cogeneration Units for Family House - Evaluation and Simulation
Martynek, Václav ; Baxant, Petr (referee) ; Macháček, Jan (advisor)
Master’s thesis deals with cogeneration units of low power that are used for heating of buildings and to cover the heat demand of small industrial enterprises. The introductory chapters are focusing on clarifying the principles of combined heat and power (CHP) as well as on the basic advantages and important indicators of CHP. The thesis presents a brief overview of cogeneration devices by type of primary units and also provides an overview of cogeneration units suitable for family houses that are currently available on the market. The text describes how to install and connect the cogeneration unit. The fourth chapter includes description of elemental thermal processes and possibility of heat transfer. The fifth chapter describes the thermal circuit model and calculation efficiency of a cogeneration unit. Thermal circuit consists of a cogeneration unit and a multivalent tank for hot water heating system and potable hot water system. The object of master’s thesis is to create a model of thermal circuit cogeneration units in a simulation program and a graphical user interface, that will allow a simple way to evaluate the operation of the cogeneration unit when changing the input parameters.
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