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Optimization of cooperation power station blocks
Smarž, Patrik ; Pěcha, Jiří (referee) ; Mastný, Petr (advisor)
The introduction of this bachelor´s thesis deals with basic terminology used in the power plants. It details the terms: work, power, and efficiency. The other part deals with basic thermal circulation of a condensation power plant and possibilities to increase the thermal circulation efficiency. It describes improvement of admission steam parameters, especially dealing with a steam superheater. Regeneration heating, steam heating and pressure decrease in the condenser are explained as other options of the thermal circulation efficiency improvement. Furthermore, it deals with consumption and cost characteristics of a power generating facility and optimisation of operation of power plants and heating plants in the EC. The model showes an explanation of an optimal distribution of power outputs of two cooperating power units at a given load.
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Economics aspects of building and operation of heat power plant utilizing biomass
Špinar, Marek ; Pěcha, Jiří (referee) ; Mastný, Petr (advisor)
This work builds on a semester project where they were processed by the first two points of tasks, this the issue of the use of biomass in energy and needs quantification of biomass for energy production plant defined performance. Now the work is devoted to comparing plants using heat energy from biomass economically and possible future developments respectively. Recommendations for construction. Prior to the issue of technology are addressed aspects related to the implementation of production in terms of investment. Methods are provided solution investment opportunities and outlook on the implementation phase electricity works. The work is devoted to the assessment of value and comparison of different technologies to convert biomass into electricity. The paper compares the capital and operating costs of the considered types of power plants defined performance. The indicator is the ratio CZK / kWh. The important part is the processing recommendations for construction based on the information gathered. This section discusses the sources of electrical energy with a view to the future, therefore consideration of appropriate application of specific types of production with regard to regulation, for use as to the optimal mode of operation. At the end of the work is devoted to the issue of clean energy from biomass, which is the main point of interest in financial support from the state in the form of grants, which the state encourages individual entities in the construction of energy sources and bio establishments.
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Regulation options of renewable energy sources
Pavlíček, Jiří ; Morávek, Jan (referee) ; Pěcha, Jiří (advisor)
This bachelor's thesis deals with the regulation of renewable energy sources. It focuses on ways of managing and possibilities of regulation renewable energy resources. Indicates the proportion of various types of renewable energy sources in electricity production and their representation in the electrical load profile. Thesis describes the various storage systems, which can be used to stabilize the renewable energy sources. Evaluate the applicability of these storage systems in the energy sector.
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The projekt of the small water power station
Steidl, Adam ; Pěcha, Jiří (referee) ; Matoušek, Antonín (advisor)
This Bachelor thesis deals with a concept of a small hydro power plant. The first part is focused on hydro power potential of the Czech Republic, the general theory of small hydro power plants and their division. The following part discusses about the selection of suitable localities for construction of small hydro power plant and the decision of choosing the best of them. The selected locality is described and evaluated. Subsequently, the thesis deals with the theory of water management and hydro power solution of small hydro power plant. Futher the concept of a small hydro power plant is outlined. This concept consists of a theoretical solution of the hydraulic circuit and more detailed it focuses on the selection of appropriate sets. Then the thesis characterizes the concept of electric part of the small hydro power plant and its connection to the Distribution network. This part of thesis is aimed to compensation of reaktive powers, a concept of cabel for pulling of power of power plant, protections and automatization of the small hydro power plant. Finally, the economic evaluation of the investiment is done.
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Design of application of radio-frequency control system Xcomfort in modern building
Marek, Jan ; Pěcha, Jiří (referee) ; Bátora, Branislav (advisor)
This bachelor thesis focuses on a reconstruction of an electro-installation used in a family house and an implementation of a radio frequency system xComfort for an intelligent electro-installation produced by Eaton company. This system was chosen due to customer´s request and also for its easy service. The first part of the thesis describes a history of an intelligent electro-installation with a description of a radio frequency system including its basic components. Next, there is an overview and basic characteristics of other producers´ systems and also their comparison. The thesis also provides main features of bus systems and a difference between the used radio-frequency system xComfort compared with a bus system. The advantages and disadvantages between the bus bar system and the radio frequency system are clearly described there. The major part of this work is focused on a practical design of the intelligent electro-installation in a specific object. In the appendix there is a technical documentation needed for the realisation of the building. This documentation includes a layout of used components controlling lights, Venetian blinds, heating and line schemes of switchboards. The design also includes a program that controls individual components formed by a software Eaton RF-System.
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The small hydroelectric power station design
Kokeš, Petr ; Pěcha, Jiří (referee) ; Matoušek, Antonín (advisor)
The thesis deals with comprehensive design of the small hydroelectric power station in the particular site. There is the site description in the first part followed by evaluation of the hydroenergetic capacity of the watercourse and description of the inlet building and piping. Building and machinery part of the turbine hall is described in the next part. The electric part of the power station is worked up to wider scope and includes hydroalternator, switchgears incl. power for self-consumption, electric protections, cabling, transformer substation and high voltage inlet line. There is a description of the control system in the next part and economical evaluation of the investment is at the end.
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Construction of sample exercises for model of systems wiring
Pěcha, Jiří ; Bátora, Branislav (referee) ; Macháček, Jan (advisor)
In this thesis explains the term of systemic wiring and its spread in the Czech Republic. It is written a brief overview of manufacturers which are interested in this area. Comparison of advantages and disadvantages with classic wiring. For further meeting is suggested a laboratory panel which contains instruments from company ABB which belongs to international group Konnex. At the concussion of this thesis is created demonstrational application for controlling of instruments.
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Possibility of using alternative decentralized energy sources
Pitron, Jiří ; Pěcha, Jiří (referee) ; Mastný, Petr (advisor)
The thesis concerns of the possibility by using alternative decentralized sources of energy. The first chapter describes current energy situation in the Czech Republic and consideration of future electrical energy consumption and the coverage by the renewable sources. Another part of this chapter describes each types of renewable energy with their advantages and disadvantages related to the Czech Republic. In the second chapter are introduced inputs which are appropriate for the plan of energetic system. The following theoretical chapter deals with each types of alternative energy sources using renewable source including the possibility of the installation and plan for the building. These alternative sources are sorted out by the way of using renewable sources of energy. The theoretical-practical fourth chapter concerns of the heating by the heat pump. For the detailed description was chosen the heat pump which is currently denote as appropriate alternative source of heat in household. With appropriate plan, which the thesis deals with, is this alternative source considered as proper investment. In the last chapter was assembled programme for creating models of energetic flux and calculation for the plan of heating by the heating pump air/water. This model is taken for concrete buildings related to exact outdoor temperature from previous years in concrete locality. In the end was realized validation of the software with the real measurement in concrete building.
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Use of Statistical Methods for Progression Evaluation of Parkinson’s Disease
Pecha, Jiří ; Mekyska, Jiří (referee) ; Smékal, Zdeněk (advisor)
This master’s thesis takes aim with the use of statistical methods for progression evaluation of Parkinson’s disease. There is a brief description of Parkinson’s disease. It is further stated processing and evaluation of values of speech parameters which are affected by Parkinson’s disease. The thesis describes the process using the values of classification and regression trees and evaluate results using the mean absolute error and estimated error. Processing and evaluation of values was done in MATLAB software.
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Markets and Electricity Trading from Renewable Sources in EU
Pěcha, Jiří ; Čambala, Petr (referee) ; Macháček, Jan (advisor)
The submitted diploma thesis describes particular types of European energetic exchanges, focuses in depth on principles market in Czech Republic and studies the price development on spot and futures markets. The main idea of this work is to focus on renewable energy sources (RES) and their influence on energetic markets. At first, operational and reliability properties of RES are explained and then their development support is analyzed. Last chapters focus on how the power grid is impacted by RES that are hardly predictable source with local production characteristic. There are also outlined problems originating from irregular production that are linked to a surplus of electric energy, but also on energy shortage caused by bad weather. These problems influence international commerce and reduce the capacity of cross-border profiles.
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