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Heating system of polyfunctional house
Hladík, Juraj ; Adam, Pavel (referee) ; Počinková, Marcela (advisor)
The aim of this bachelor thesis is the theoretical part of circulatory pumps. Computational part solves the design of heating and hot water heating in the polyfunctional house in Moste in Bratislava. Three-storey multifunctional house is situated on the outskirts of the city. It contains a total of 4 apartments and 8 office spaces for 64 people. The source of heat for the object is gas condensing boilers. The heating surfaces are plate radiators, tubular heating of the body.
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The effect of boiler tube bundle fouling on its service life
Volná, Kateřina ; Ing. Zdeněk JŮZA, Ph.D., MBA (referee) ; Naď, Martin (advisor)
Fouling of tube bundles in boilers on the flue gas side affects not only the service life, but also the boiler heat output and increases maintenance and operating costs. Therefore, it is necessary to minimize or completely eliminate this process. This thesis focuses on comparison of the service life and the heat output of the tube bundles with and without deposit in the coal fired boiler. Simulations of flue gas flow in area of tube bundles with and without deposit are performed using ANSYS Fluent software, which shows that the surface of tube bundles with deposit is much less heated than the surface without deposit. The thermal loads of tubes obtained by the CFD analysis are applied to the model, which is created in the program ANSYS Mechanical, where the calculation of the temperature field in the cross section of the pipe is realized. The effect of fouling on creep life and heat output is then evaluated based on simulation results. The results show that fouling increases creep life, but significantly reduces heat output of heavily fouled tubes. Hence the flue gas flows at a higher temperature to the rest of the tube bundle, and the service life of those tubes will therefore probably decrease.
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Heating of office building
Němečková, Radka ; Adam, Pavel (referee) ; Počinková, Marcela (advisor)
The aim of this bachelor thesis is design of heating and warm waterpreparing in the office building. The building has two overground floors. A source of the heat for the building is a gasboilerroom with two condensation boilers. Heating surfaces are panel radiators and free standing convectors. There is forced ventilation installed in whole building.
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Heating of a residential building
Balážová, Pavla ; Čupr, Karel (referee) ; Treuová, Lea (advisor)
This bachelor thesis consists of three parts - theoretical, numerical and project. In the theoretical part, different types of heating for apartment buildings are dealt with. The numerical part is focused on individual parts of the heating system in the apartment building. As the heat source a cascade of gas condensing boilers was chosen. A flat station is for heating warm water and its distribution to each dwelling unit. The technical report and detailed documentation are dealt with in the last project part.
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Boiler efficiency and indirect heating of hot water
Matůšů, Ondřej ; Horák, Petr (referee) ; Počinková, Marcela (advisor)
This diploma thesis deals with efficiency of heat sources and indirect heating of hot water. First part of this thesis is about heating of hot water, particulary indirect heating of hot water and it is all summarized in theoretical knowledge section. Second part deals with central heating and indirect heating of hot water in four floor flat house. The heat source for this object is cascade of two gas condensing boilers. In this building there are mostly used panel radiators. In the last, third part, I experimentaly deal with operational efficiency of heating sources with heating of hot water.
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Heating of the production facility with administration
Bardarov, David ; Horká, Lucie (referee) ; Topič, Jan (advisor)
This Bachelor thesis consists of three main parts. The first one is theoretical and describes heating systems, their types and circulation pumps. The second part consists of calculations and describes heating framework and heating water in an industry hall with office in region Troubsko. It is a two-floor building with no basement. Both floors will be heated by board and tubular radiators. The source of heating will be two gas condensation boilers. There will be complete calculations and suggested important elements needed for running the whole system compiled in this Bachelor thesis. In the final part I processed technical report and drawing documentation.
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Determination of fired heater heat duty
Slowik, Roman ; Babička Fialová, Dominika (referee) ; Jegla, Zdeněk (advisor)
The compilation and application of a new alternative method of calculating the heat duty of process tubular furnaces, published in the journal Chemical Engineering Research and Design, is the main objective of this work. The alternative method is processed in a suitable computational environment and the created calculation tool is subsequently applied to the given industrial cases of process tubular furnaces. An assessment of the accuracy of the new alternative method is performed on the basis of a comparison of the results obtained from the industrial cases with available results from commercial simulation software.
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Heating system reconstruction
Tajbrová, Lenka ; Košner, Jan (referee) ; Hejčík, Jiří (advisor)
This thesis deals with reconstruction of the heating system of the house after insulation and window replacement. First, the work deals with the description of the building, where are solved the structural elements and building construction and the original heating system is described. Another part deals with the selection of appropriate thermal insulation of external walls and roofs. The work deals with the detailed calculation of the nominal heat performance including domestic water heating. Subsequently, it is focused on solutions of suitable reconstruction of the heating system, which deals with the heat source, hot water circulation, radiators, temperature gradient, heating system security and temperature regulation of water in the domestic water storage heater. In the annexes are inserted construction drawings and the drawings of heating system. Drawings of heating systems are processed for the original condition. For the condition after insulation drawings are already processed with the proposed renovation of the heating system.
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An Apartment House - heating
Vyhnánek, Jan ; Čupr,, Karel (referee) ; Treuová, Lea (advisor)
Bachelor work consists of theoretical and numerical part. In the theoretical part deals with various methods of heating in apartment buildings. The numerical part deals with individual part of the heating system in the apartment building. For heating the apartment building was chosen central heating system with indirect hot water. As the heat source was chosen gas heat pumps in combination with condensing boilers.
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Heat exchanger design
Jílek, Tomáš ; Kudela, Libor (referee) ; Špiláček, Michal (advisor)
This bachelor thesis deals with the design of a tube heat exchanger for water - water media, which is part of a cooling circuit. The thesis contains basic description and distribution of tube heat exchangers. It also includes designing and calculating geometric dimensions, calculating the pressure losses in the pipe and intermediate flange spaces and calculating the actual output of the heat exchanger. Part of the thesis is also drawing documentation of the proposed heat exchanger.
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