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Winery
Svozilová, Simona ; Sochorová,, Zuzana (referee) ; Struhala, Karel (advisor)
The aim of this Master’s thesis is to develop the design documentation for the building permission of a two-storey winery situated in Strachotín, Czechia. The thesis is divided into three parts. The first part deals with architectural and structural design. The winery building has one above-ground and one underground floor. Building’s floor plan is divided into two rectangles, each serving a distinct purpose. The first rectangle, characterized by a flat semi-intensive green roof, encompasses the wine bar and offices, while the second rectangle with the gable roof houses the production area. The structural system is designed as reinforced concrete frame with sand-lime masonry infills in the above-ground and as prefabricated reinforced concrete walls in the basement. The envelope walls are insulated with the ETICS. The floor and roof structure is designed using prestressed hollow core panels Spiroll. The first part of the Master’s project includes the energy performance certificate. The second part of the Master’s project is dedicated to the design of selected building services. Heating and cooling are provided by two ground-source heat pumps. There is also smart LED lighting, photovoltaics and rainwater treatment. The last part of the Master’s project is focused on the integration of phase-change materials (PCM) in heating systems. Specifically, comparing three thermal storage tanks filled with water, organic and inorganic PCM. The aim is to discern which option minimizes the overall environmental impacts of the system. Software tools used include Archicad 26, Hluk +, Building Design, FIRE-NX DesignBuilder, Deksoft, Microsoft Office, SketchUp, Vray, GaBi.
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Study of Thermal Properties of Materials for Cooling of Photovoltaic Panels
Dohnalová, Lenka ; Pavlík, Zbyšek (referee) ; Matiašovský, Peter (referee) ; Zmeškal, Oldřich (advisor)
The topic of this doctoral thesis is to study the thermal properties of PCM materials and discussion of their use for cooling of photovoltaic systems. The aim of the study is to measure and characterize the thermal properties of commercial PCM materials (Micronal®), their practical use is related to the phase transitions. The behavior of bulk materials at different temperatures is well described theoretically and experimentally verified. For the application use it is necessary to examine and determine the thermal properties of PCM materials depending on the phase transitions during heating and cooling. To study the thermal properties of materials the known transient methods of measuring are used which give full information about the behavior of the materials investigated in dependence on the temperature and thus allow the determination of the thermo-physical parameters of the system. For the transient measurements there are used especially pulse transient and step wise method. Newly is used also combination of linear temperature rise (the ramp wise) and the step wise method. The principle is based on the generation of a small amount of heat inside the studied sample and it is measured the thermal response of the system from which it may be then determined the necessary thermo-physical parameters. The theoretical part of this thesis focuses on characterization of methods for the determination of thermo-physical parameters of the investigated material. In the experimental part of the approached process of experiment, the results, the method of evaluation of the obtained data and also the discussion of results from the viewpoint of potential applications are presented.
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Study of energy accumulation during phase change of paraffin wax
Lapčíková, Tereza ; Krouská, Jitka (referee) ; Zmeškal, Oldřich (advisor)
This thesis deals with the study of the process of energy storage during phase transformation, the so-called latent heat for commercial materials of the Rubitherm® RT line (Rubitherm Technologies GmbH) with applications in the construction industry. The thermophysical properties of Rubitherm® RT35HC, RT28HC and RT18HC materials differing in phase transformation temperature were investigated using the transient method. For the Rubitherm® RT35HC material a value of the thermal conductivity coefficient in the solid phase of 0.21 W/m/K and in the liquid phase of 0.23 W/m/K was determined. The specific heat capacity value in the solid phase was determined to be 1980 J/kg/K and in the liquid phase 1995 J/kg/K. For Rubitherm® RT28HC, the value of the thermal conductivity coefficient in the solid phase was determined to be 0,23 W/m/K and the value of the specific heat capacity in the solid phase was determined to be 1997 J/kg/K. For the Rubitherm® RT18HC material, a liquid phase thermal conductivity coefficient of 0,27 W/m/K and a liquid phase specific heat capacity of 2010 J/kg/K were determined. Using differential scanning calorimetry (DSC), the melting temperature of the Rubitherm® RT28HC sample was determined at 27.43 °C and solidification at 23.51 °C, while for the Rubitherm® RT35HC sample melting occurred at 36.51 °C and solidification at 31.86 °C and 32.28 °C. In the experimental part of this work, modifications were made to the measuring apparatus used in such a way that it could be used for the study of materials that change their state of matter during the experiment.
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Study of Thermal Properties of Materials for Cooling of Photovoltaic Panels
Dohnalová, Lenka ; Pavlík, Zbyšek (referee) ; Matiašovský, Peter (referee) ; Zmeškal, Oldřich (advisor)
The topic of this doctoral thesis is to study the thermal properties of PCM materials and discussion of their use for cooling of photovoltaic systems. The aim of the study is to measure and characterize the thermal properties of commercial PCM materials (Micronal®), their practical use is related to the phase transitions. The behavior of bulk materials at different temperatures is well described theoretically and experimentally verified. For the application use it is necessary to examine and determine the thermal properties of PCM materials depending on the phase transitions during heating and cooling. To study the thermal properties of materials the known transient methods of measuring are used which give full information about the behavior of the materials investigated in dependence on the temperature and thus allow the determination of the thermo-physical parameters of the system. For the transient measurements there are used especially pulse transient and step wise method. Newly is used also combination of linear temperature rise (the ramp wise) and the step wise method. The principle is based on the generation of a small amount of heat inside the studied sample and it is measured the thermal response of the system from which it may be then determined the necessary thermo-physical parameters. The theoretical part of this thesis focuses on characterization of methods for the determination of thermo-physical parameters of the investigated material. In the experimental part of the approached process of experiment, the results, the method of evaluation of the obtained data and also the discussion of results from the viewpoint of potential applications are presented.
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