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Cooling residential spaces by using solar energy
Staněk, Martin ; Rapta, Patrik (referee) ; Pech, Ondřej (advisor)
The bachelor thesis focuses on the design of the cooling of a residential unit in an old family house. The introductory chapter deals with the description of the air conditioning equipment and its use. The following section discusses the functions and possibilities of photovoltaic systems to reduce the economic cost of air conditioning. The third chapter discusses the parameters of the building structure. The following chapter shows an example calculation and results of the heat gains of all rooms. The penultimate chapter shows the cooling design of the dwelling unit including an additional hot water storage tank, for a higher utilization of the outdoor unit. The last chapter will show the design of a photovoltaic plant on the roof of the building to minimize the economic burden of the air conditioning operation.
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Optimization of combined heat pump and solar PV system for family house
Bojanovský, Jan ; Hudák, Igor (referee) ; Skryja, Pavel (advisor)
The aim of this work is to propose the optimization of a family house system heated by a heat pump in combination with a small photovoltaic power plant and a battery. The research part of the work describes the principle of operation and types of heat pumps, photovoltaic power plants and energy storage from the perspective of their use in a family house. The practical part of the work further focuses on the evaluation and optimization of the system that was newly installed in the family house. Because in this particular case the system was recently put into operation and it was not possible to obtain data continuously for the entire year of use, the missing data were supplemented by simulation or approximation. Based on a combination of measured and simulated data, the system was subsequently optimized for the most economically efficient use of electrical and thermal energy. Based on the outputs of this work, it is possible to assess the economics of operating the heat pump and photovoltaic power plant and the suitability of installing this system in an older family house.
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Design of a PV plant for a family house
Kalousek, Stanislav ; Vaněk, Jiří (referee) ; Jandová, Kristýna (advisor)
This bachelor thesis deals with the design of a photovoltaic power plant in combination with a heat pump for a family house. The theoretical part of the thesis includes a detailed analysis and analysis of currently used photovoltaic and heat pump technologies with the use of possible government subsidy programs. Furthermore, the practical part describes the layout of the family house for which both systems are proposed. Based on the knowledge gained, the design of the heat pump and photovoltaic power plant is proposed, including a system for the storage of electrical energy or the sale of surplus to the distribution grid. In addition, a simulation of the operation of the PV power plant is performed in the professional design environment PV*Sol Premium, including a 3D model, module shading, economic and energy analysis of the PV power plant design. Finally, an evaluation of the combination of a PV plant with a heat pump and a comparison with a commercial design from a professional PV and HP installation company is made.
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Energy-saving family house in Předměřice
Rybář, Aleš ; Vyhlídalová, Karolína (referee) ; Počinková, Marcela (advisor)
The bachelor´s thesis aims to design a nZEB detached house. It´s located in Předměřice in a relatively quiet area. The building has two floors with an attached garage, workshop, sanitary facilities and storage room. The building has a cold-pitched roof and the attached part has a mono-pitched roof. The ground floor of the house is a social part with a living room connected to the kitchen, study, bathroom, WC, garage, laundry and utility room. The first floor is a private zone with a master bedroom with a walk-in closet, two bedrooms, a bathroom, a WC and a storage room. The building is based on reinforced concrete foundation strips. The vertical structures are masonry made of ceramic blocks. Horizontal load-bearing structures are made of ceramic blocks and reinforced concrete. The house is connected to the freshwater main and sanitary sewer. Domestic hot water is supplied by the 300 l hot water cylinder. Rainwater from the roofs is accumulated for reuse. The excess water is diverted through the overflow into infiltration. Rainwater from built-up areas is infiltrated into the ground. Heating in the house is provided by an air-water heat pump, which is also used for DHW. The heating system of the house is floor heating in combination with electric radiators. On the cold roof there are placed photovoltaic panels for batteries placed in the utility room. The house is partly ventilated by a mechanical system with a heat recovery. The rest of the rooms that are not part of the living area are ventilated by windows.
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Conceptual design of hydrogen storage
Svoboda, Filip ; Lisý, Martin (referee) ; Milčák, Pavel (advisor)
The main objective of this thesis is to propose the storage of surplus electricity from a photovoltaic power plant in the form of green hydrogen. For the design of hydrogen accumulation it is necessary to determine the balance of production and consumption of electricity from PV power plant, then design a specific type of electrolyzer, type of hydrogen storage and use of hydrogen. The final step is the creation of a technological scheme of a specific solution of power to gas to power technology. The expansion of this type of hydrogen economy can lead to a large increase in the use of low carbon sources and help in the path to carbon neutrality.
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Single-family house Jedle
Mikuta, Jakub ; Jechová, Marie (referee) ; Ostrý, Milan (advisor)
The aim of the bachelor’s thesis is to design a masonry part of the model nearly zero-energy semi detached house located in Brno. The thesis has two parts. The first part deals with architectural and structural design, building physics assessment and fire safety report. The second part presents the design of building services and energy performance certificate. The building is a rectangular, two-storey structure with a wetland flat roof. On the ground floor, there is an open plan kitchen connected with a living room, a separate toilet, a utility room, and a storage space. On the first floor, there are two bedrooms and a bathroom. The house stands on a flat plot and it is built on an insulated concrete slab. The vertical structures of the house are masonry and made of hollow ceramic blocks. The external walls are designed with a ventilated facade insulated with mineral wool. The horizontal structures are made from precast concrete beams combined with hollow ceramic blocks and concrete screed. The building is heated with air-water heat pump, which is used for heating up domestic hot water and water for a floor heating system. A ventilation unit with heat recovery is used for mechanical ventilation. Detailed part of the building services design consists of plumbing, rainwater, and greywater management. Greywater is treated in wetland roof, that works as treatment wetland. Cleaned greywater and rainwater are stored in a tank and used for flushing the toilets and irrigation. The house has 2,76 kWp PV system generating electricity. The bachelor’s project is elaborated in ArchiCAD software.
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Integrated Measurement System for In-Field Compliance Testing
Chvalová, Aneta ; Morávek, Jan (referee) ; Dvořáček, Jiří (advisor)
As the number of renewable energy sources has increased, new installations have been subject to new requirements for their control, whether autonomous (responding to conditions at the point of connection) or dispatchable. An important step for the commissioning of photovoltaic (PV) plants is to perform compliance testing, which is sometimes only appropriate or necessary to perform in the field on a complete installed plant. The measurements are used to obtain a set of data which is then used to issue a certificate of correct operation (i.e. compliance with requirements). The main output is a measurement system assembled into a portable case that can be easily transported to the PV installation site and simply connect the measurement analyzer to both the AC at low voltage level (for recording voltage, current, power, frequency) and DC (for recording binary commands and signaling). Also included is elaborate documentation of the case itself.
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Design of a photovoltaic power plant for a family house in Opava region
Pekárek, Marek ; Jandová, Kristýna (referee) ; Vaněk, Jiří (advisor)
The bachelor thesis covers the design of a photovoltaic power plant with battery storage for a family house. In the theoretical part is mentioned principles of photovoltaic effect and the function of photovoltaic cells. The work deals with the description of the photovoltaic panels and entire systems of photovoltaic power plant used nowadays. Theses includes informations on legislative conditions and available subsidies related to the installation of photovoltaic power plants in the Czech Republic. In next part of the thesis, I focus on the design of a photovoltaic power plant for a selected family house with a measured annual energy consumption. The system design methodology includes calculation of the required power output of the plant, selection of the appropriate panel placement, component selection, and design of electrical wiring. The work also includes an economic analysis and a calculation of the return on investment, considering the available energy products from energy suppliers in the Czech Republic.
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Smart house
Sedlák, Šimon ; Pospíšil, Jiří (referee) ; Baláš, Marek (advisor)
This thesis describes the technologies of energy self-sufficient homes, their sources, and methods of energy accumulation. It also deals with current possibilities and trends in the field of smart living. A smart energy system is introduced, which has a direct impact on energy consumption in households. The practical part of the thesis involved simulating the energy system and comparing the impacts on purchased electrical energy from the distribution network based on the proposed variants. These included the size of the photovoltaic power plant (PV), the accumulation of electrical energy (EE), the accumulation of heat, the insulation of the building envelope, and more. All results that demonstrate the impacts of the energy system and the proposed renewable energy sources (RES) were summarized in the final part of the thesis.
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Simulace fotovoltaické elektrárny v rodinném domě
Gabrys, Adam ; Zachariáš, Michal (referee) ; Szőke, Igor (advisor)
This work deals with the simulation of a photovoltaic power plant system for a single-family house with subsequent optimization with respect to the return on investment. It emphasizes the visualization of the results and the possibility to include custom photovoltaic assemblies including inverter, photovoltaic panels and battery. The tool works with a three-phase system, where it is able to analyse the consumption of each phase and perform simulations with the power delivered from the solar panels. The optimization of the different components of the power plant is performed using a genetic algorithm. The simulation is implemented in Python based on object-oriented programming principles in order to allow the addition of new modules.
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