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Effective management of domestic hot water heating using photovoltaics
Talajka, Martin ; Zachariáš, Michal (referee) ; Materna, Zdeněk (advisor)
This work solves the problem of efficient control of water heating using photovoltaic system. To solve the chosen problem, I designed an algorithm and implemented it in the form of integration into the Home Assistant system, which also serves as a central control device. And it provides the integration between the boiler and the PV system. Thanks to this integration, it is possible to automatically and comfortably heat water from the surplus energy of the photovoltaic system, or alternatively from batteries or the distribution network. At the same time, system status monitoring and remote device management are possible. For example, the user can monitor the temperature of the heated water, the status of the overall system, adjust the heating temperature or set the water heating for a specific time, using an app or a web interface. The results of the work show that the proposed system is easy to use and is able to efficiently manage the water heating using the PV system, thus saving energy and gas.
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Automation of the home pool
Veselý, Vojtěch ; Heriban, Pavel (referee) ; Roupec, Jan (advisor)
The Czech Republic is one of the world's pool powerhouses. Today, swimming pools are an integral part of every family home in the village and in the town. Water filtration and heating and their operation are also related to them. This work is focused on the possibilities of efficiency and automating the operation of these devices and the realization of a control unit prototype and its testing.
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Study of return of heat sources for a family house
Pavlík, Michal ; Lisá, Hana (referee) ; Toman, Filip (advisor)
This bachelor’s thesis focuses on the calculation and selection of the most suitable heat energy source for a selected family house. A brief overview of these heat energy sources serves for a general understanding and clarifies their basic functions. By calculating the heat loss through walls, heated and unheated rooms, functional parts of the building, the ground, and ventilation, the total energy required for heating the house for one year was determined. Additionally, the total energy needed to heat water for 4 people every day throughout the year was also identified. Based on these collected values, four energy sources were selected and subsequently compared with each other in uncluttered graphs. The most suitable heat source was chosen after an economic analysis of return on investment.
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Measurement of temperature on swimming pool water
Moravec, Luboš ; Pavlík, Michal (referee) ; Šteffan, Pavel (advisor)
This bachelor’s thesis deals with measuring the temperature of the pool water, control of heating and transmit the data remotely to a computer or mobile device. Includes description of the measuring device, the function and design of possible implementation. It also explores the issue of measuring sensors, communication with the microcontroller and control of remote communication. Thesis also concern the selection of components, design diagrams, PCB design and structural design of the device. This thesis also includes software that deals with data processing and communications at distance.
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The development of the model of PV system for electric water heating
Sochor, Tomáš ; Radil, Lukáš (referee) ; Ptáček, Michal (advisor)
This thesis deals with designing of a model of a photovoltaic system for domestic water heating in program PSCAD. In theoretical part, an analysis of photovoltaic systems regarding their connection to electrical grid is made. Then a description of chosen concepts of photovoltaic systems for domestic water heating is made. Furthemore, a photovoltaic cell is described with regard to its mathematical description and influence of different parameters on its volt-ampere characteristics. Also, a common topologies of DC-DC converters are described. Control is also related to these converters, that is why a fundamental MPPT algorithms are described. Practical part deals with designing of chosen concepts of photovoltaic systems for domestic water heating in program PSCAD. A basic simulations with regard to behavior of these systems are performed, especially a relationship with respect to irradiance and temperature. Simulations are then discussed in the conclusion.
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Plumbing Systems of the Multifunctional Building
Vaňková, Klára ; Wierzbická, Helena (referee) ; Vendlová, Lucie (advisor)
The plumbing systems of the multifunctional building are solved in this bachelor‘s thesis. Dimension and pipe materials of the sewage system and water supply are designed in the building. The central water heating is solved by hot-water tank in the technical room. The water heating of kitchen sinks is solved by flow-heaters. The property connections are designed as well. Roof rain water is lead by rainwater downpipes on building facade. Car park rain water is lead by spill control oil – water separator. Roof rain water and car pak rain water are lead to the rainwater storage tank with regulated drain. The desing of the plumbing systems is made with usege of the appropriate technical standards.
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Building services of near zero energy buildings
Šťastný, Radek ; Tůmová, Eliška (referee) ; Hirš, Jiří (advisor)
Master´s thesis is focusing on zero energy building with technical equipment. The building was built in 70. decade of last century. It has been using for sport and cultular events until these days. Restaurant was connected to sport hall. First part is focusing on zero energy building and technical equipment, their using, combination and optimal connecting in systém. Second part solving how many fotovoltaic panels must be in the system to reching economic advantage. In third part is solving how to connecting fotovoltaic panels to the system.
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Alternative Energy Resources for Family House
Buráň, Petr ; Štelcl, Otakar (referee) ; Špiláček, Michal (advisor)
In this bachelor thesis we will focus on alternative energy resources for family house. The thesis consists of two main chapters. The first chapter is focused on research, in which we will sequentially introduce different resource of energy and describe their principle of operation. In the second chapter we will create proposal designs for different energy resources for family house and their price comparisons.
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