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Heat Pumps in Buildings Heating Systems
Vláčil, Martin ; Pěcha, Jiří (referee) ; Mastný, Petr (advisor)
The bachelor thesis deals with heat pumps and their use in building modern heating systems. In the first part of thesis is theory describing the principle operating of heat pumps, their types and basic components. The other part describe low-energy house and its parameters. In the last part of theory is discussed the issue of modern heating systems and types of heating elements used in it. In the practical part is the prescription of family house given by supervisor, the calculation of its heat losses and the design of the heating system. Further, the heat pump design and its economical comparison with selected heat sources.
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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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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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Energy system for energy independent object
Kaňovský, Jiří ; Pěcha, Jiří (referee) ; Mastný, Petr (advisor)
This bachelor‘s thesis deals with a design of energetic system for energetic independent family house. There are default parameters for the house defined, and an impact of house's placement in nature on thermal energy loss and on thermal energy gain due to solar radiation is described at first. There are daily diagrams of thermal energy consumption for common and heating periods derived in this thesis. An energetic system producing electric energy using photovoltaic solar panels which are placed on the house's roof is designed based on the diagrams. The thesis also introduces basic types of island energetic systems. The objective of this thesis is also a design of energetic system for heating-up (TUV) using a thermal pump, fireplace and solar collectors.
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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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Design and implementation of smart wiring in the apartment with visualization
Valo, Marek ; Pěcha, Jiří (referee) ; Bátora, Branislav (advisor)
This thesis deals with the classic and system wiring as well as their implementation and visualization environment for its operation. The aim of this work is to implement the project of the existing high-voltage and low-voltage wiring housing units accompanied by a design of the system wiring. This design is then fully implemented. In the beginning of the work is introduction to system wiring as such, added by a brief comparison of current systems. Followed by two chapters dealing with two selected systems for the realization of wiring. These chapters succinctly capture the essence of the system, its characteristics and features offered by each system. The last part deals with project design of wiring for the residential unit and the procedure for its commissioning. The practical part is dedicated to creating drawings with the existing power and low voltage distribution systems, the design of the smart wiring and electrical switchboard, together with possible modifications. The project documentation also discusses technical report. Finally, the selected system is tested and commissioned according to the requirements.
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Optimization of Energy Flow During WWTP Operation - Smart Area Net
Pěcha, Jiří ; Máša, Vítězslav (referee) ; Braciník,, Peter (referee) ; Mastný, Petr (advisor)
The dissertation work deals with the issue of water treatment and possibilities of energy savings during the operation of sewage treatment plants. The aim of the work is to find the potential of alternative energy use, economical consumption, improvement of the facility system management and quality improvement of the wastewater treatment process. In the first part of the work, operating processes, energy flows and energy savings are discussed. To analyze the problematics, larger sewage treatment plants were chosen. Thanks to their size, it was easier to find critical points and test the usage of renewable sources in operation. After the energy audit, the individual processes were assessed and real operation pitfalls were determined. Further steps led to focusing on smaller facilities up to 2 000 PE. This step was carried out with the intention of preparing these plants for the planned legislative change and helping to create or modernize more energy-efficient solutions. Thanks to the establishment of consortium of Brno University of Technology, the Department of Electric Power Engineering and a company dealing with water treatment and automation control, a solution was created that modernize the electrical, automation and water treatment part of the plant operation. This innovative application was installed in the sewage treatment plant, where the issues were debugged, control algorithms were tested and the entire operation was launched in automatic mode. At the end of the wastewater treatment plant modernization, PV panels were installed on the roof, thus partially suppling the object with renewable energy.
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Design of electrical installation of polyfunctional house
Sladký, Tomáš ; Pěcha, Jiří (referee) ; Janík, Daniel (advisor)
The bachelor thesis deals with the design of power and data installations in a multifunctional building. This building is composed of two parts - office space located on the first floor and four residential units located on the second floor. The theoretical part of the bachelor thesis deals with the basic definitions and principles for the creation of project documentation, at the end of the theoretical part is presented the proposal of artificial lighting and the design of emergency lighting of escape routes. In the practical part of the bachelor's thesis there is a completely processed project of electrical installation. The project consists of all the requisites necessary for the realization of the building and contains drawings of the floor plans of the two floors of the building, where the power and data wiring are drawn, also contains the diagrams of the connection of all the cabinets and the electricity meter cabinet, the power distribution diagram, the budget and the technical report. The design of the cabinets was verified using the SICHR calculation program.
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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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