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Heating of low-energy houses
Poláčik, Ján ; Moskalík, Jiří (referee) ; Hrnčířová, Michaela (advisor)
Low-energy houses are becoming more common and requested. This work describes possibilities and various ways of space heating in such houses. It also analyses specific energy sources, their availability as well as an environmental impact. The work includes a design of heating for a display low-energy house.
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Ventilation and heating system of a production and storage hall
Bližňák, Jakub ; Šikula, Ondřej (referee) ; Krejčí, Vladimír (advisor)
The objective of this master thesis is to design heating and ventilation systems for a production and storage hall and a contiguous administrative part of the building. The basis of design is in calculation of thermal losses and gains of the building. The objective of design is to reach requisite microclimate for single spaces and operations. System of heating, ventilation and cooling are elaborated in drawing documentation.
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Design of heating system of wooden apartment building
Rušín, Marek ; Počinková, Marcela (referee) ; Horká, Lucie (advisor)
The aim of this bachelor thesis design of heating system and hot water preparation for timber structure of an apartment building in Choceň. The building is divided into two separate objects, both of them have three floors. The heating system consist of a steel panel radiators and towel rail radiators . The source of heat consists of two gas condensing boilers connected to a cascade. The theoretical part deals with measuring of consumpted heat for heating system and hot water preparation.
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Compatibility of selected dental alloys with magnetic resonance imaging
Linetskiy, Igor ; Hubálková, Hana (advisor) ; Suchánek, Jakub (referee) ; Dostálová, Taťjana (referee)
Magnetic resonance imaging (MRI) is one of the up-to-date and perspective methods of diagnostic medical imaging. It is highly valued for absence of ionizing radiation, non-invasiveness, acquiring of highly accurate images of hard and especially soft tissues in any plane. It is a method of choice in central nervous system imaging. Nowadays it is used in diagnostics of other diseases in the maxillofacial area. The major shortcoming of MRI is interaction of magnetic fields of MRI system with metallic objects present in human body. As a result, this may lead to their heating, movement, and also to imaging artifacts. Since different metallic constructions (fixed bridges, dental implants, splints, plates, orthodontic appliances, etc.) are often used in the contemporary dentistry, the problem of their compatibility with MRI is relevant. The aim of this study was to validate the compatibility of dental alloys with MRI, classify the materials according to the degree of compatibility and to establish the range of their possible negative impact on quality of MRI in head and neck area. In order to find dental metals and alloys, General Health Insurance Company code- list, catalogues of manufacturers' and Prague dental labs were used. Measurement methods of magnetic susceptibility (MS), electric conductivity...
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Predictive Control of DHW and Household Heating Using Machine Learning Methods
Necpál, Dávid ; Zemčík, Pavel (referee) ; Materna, Zdeněk (advisor)
The thesis is devoted to the development of a system for the control of domestic hot water (DHW) and heating. The system uses machine learning methods to predict future data - learning and predicting repetitive routines of people in the home, predicting hot water consumption and temperature trends in the home. The work is divided into two parts, where the first part is the control of domestic hot water heating, and the second part is the control of home heating. Both parts of the system use established hardware devices that implement the data collection and the actual control of the given activities. The devices collect water temperatures from the electric boiler, air temperatures from the rooms of the household and information about the presence of people in the household. The measured data is used to create a model for data prediction, which is used for the final decision on whether DHW heating or home heating should be implemented. The first subsystem for DHW heating achieves energy savings of 20 to 24 %, the second subsystem for domestic heating 18 to 30 %. The benefit of the developed system is the possibility of predictive automatic control of domestic hot water heating and heating, which leads to a reduction of energy consumption required for the above-mentioned activities, as well as a possible increase in comfort in the home.
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Evaluation of heat sources for a family house
Bábíková, Nikola ; Zlevorová, Tereza (referee) ; Toman, Filip (advisor)
This bachelor’s thesis, consisting of three parts, focuses on individual heating solutions for a family house. First part presents energy sources for heating of a family house. Heat loss and annual required energy for heating is calculated in the second part. The final part consists of system selection for each individual heating method based on calculated heat loss and their economic evaluation.
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Effectiveness in reducing costs in heating
Chytil, Michal ; Zlevorová, Tereza (referee) ; Lisý, Martin (advisor)
Heating of family houses, due to its significant energy consumption, ranks among major sources of pollution worldwide and at the same time represents a considerable item in household budgets. This Batchelor thesis deals with the possibilities of saving energy in heating family houses and their economic viability. The thesis includes a list of options for reducing heat loss and subsequent comparison of basic types of heating. At the end there is a model calculation of individual variants and their economic comparison in terms of financial return.
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Comparison of heat sources for family houses
Mužík, Jan ; Lisá, Hana (referee) ; Toman, Filip (advisor)
The bachelor thesis focuses on the comparison of different heat sources for four model houses with different heat losses. The main types of fuels used for heating the houses, such as solid fuels (biomass, fossil fuels), natural gas and electricity, their advantages and disadvantages as well as their environmental impact are presented. Subsequently, a complete overview of the available technologies in the field of heating of family houses is prepared, describing their technical parameters, operation, energy efficiency, costs and environmental impact. The thesis focuses on traditional heat sources such as solid fuel boilers, local heaters, gas and electric boilers, but also on their more modern alternatives such as gasifier boilers, automatic pellet boilers, condensing gas boilers and heat pumps. In the practical part, calculations of the total costs of heating and domestic hot water heating by each heat source of all four model houses are performed. This part is complemented by tables with technical parameters of the selected heat sources and also graphical dependencies comparing their total operating costs.
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Design of the heating system for an office building
Hájek, Pavel ; Horká, Lucie (referee) ; Vyhlídalová, Karolína (advisor)
The aim of the bachelor thesis is to design the heating and hot water supply system for an administrative building in the town Pelhřimov. The building consists of four above-ground floors and one underground floor, which is not heated. The heating is provided by panel radiators, pipe radiators, and underfloor convectors. The heat source consists of a cascade of two gas boilers. The hot water preparation is ensured by an indirect storage water heater. The system operates as a two-pipe system with forced water circulation. The pipes are made of insulated copper.
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Design of heating system of apartment building
Maier, Miroslav ; Vyhlídalová, Karolína (referee) ; Horká, Lucie (advisor)
The bachelor's thesis deals with the design of the heating of apartment building. The work is divided into a theoretical and calculation part and a project. Refrigerants used in heat pumps, their distribution and basic properties are described in the theoretical part. This section also discusses the impact of refrigerants on the environment. In the calculation part, heat losses of the entire building are determined by punctual calculation. The building's heating system is then designed based on the calculated heat output, including pipe sizing, system equipment design, annual heat requirement and heat source design. A cascade of three air-to-water heat pumps is considered here as a heat source. The building is heated by plate and tube heaters. The project part includes the drawing documentation of the project and the technical report.
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