National Repository of Grey Literature 121 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Modern Application for Household Heating
Šoupal, Filip ; Brázdil, Marian (referee) ; Lisý, Martin (advisor)
This bachelor thesis is focused on the research of basic sources, methods, and possibilities of heating modern family houses. The thesis is divided into three parts, the first one is focused on the advantages and disadvantages of individual heating sources in the use of renewable and non-renewable energy sources. The next section thoroughly describes and compares the methods of heating considering current emission standards. At the end, there is a technical and economic comparison of the variant of the current gas boiler with the variant of the automatic coal boiler and the modern heat pump. The comparison in interpreted on a model house through performed calculations. For better accuracy, the thesis is enhanced with pictures and tables.
From a Dumb Boiler to a Smart One Using a Smart Socket
Mitura, Jacek ; Zemčík, Pavel (referee) ; Materna, Zdeněk (advisor)
Nowadays, the world of smart devices is growing very fast. Nevertheless, it remains difficult to acquire smart device for water heating applications. The usual reasons complicating this fact include the lack of the possibility of connection to the central control unit, or the need to replace the entire boiler with a new smart model. In both cases, the additional disadvantage is the higher price of such a solution. Therefore, the aim of this bachelor's thesis is to create a comprehensive and affordable solution, ensuring the conversion of an existing boiler to smart using a smart socket and a central server controlling the household. The solution uses a daily consumption forecast based on an exponential moving average to save electricity.
CFD analysis of thermal stress of a tubesheet
Vince, Tomáš ; Babička Fialová, Dominika (referee) ; Rebej, Miroslav (advisor)
This diploma thesis focuses on the phenomena of multiphase flow in a steam generator as a one of probable causes of tubes and tubesheet weld cracking. In the first part of the work, a research was carried out focusing on the boiling and the phenomenon of two-phase flow in technical applications, its characteristics and properties. The thesis continuous with an overview of available numerical multiphase models in the ANSYS Fluent 2021 R1 and a research of previously published works focused on two-phase flow with the presence of boiling. The research is followed by a description of the particular boiler, which is part of the nitric acid production plant in the chemical company DUSLO, a.s., its operating conditions and a more detailed description of the issue that is being addressed in this thesis. The second part of the work continuous with a description of the computational model, including a description of the geometry of the model and used simplifications, the computational mesh and the description of boundary conditions. Important part is the description of calculation setting of steady-state and transient CFD simulations in ANSYS Fluent. Finally, the results of the two-phase flow calculation are presented and then discussed in the conclusions.
Modular Horizontal Heat Recovery Steam Generator
Primes, Alois ; Nantl, Radomír (referee) ; Lisý, Martin (advisor)
This thesis deals with the design of a Heat Recovery Steam Generator (HRSG). Theintroductory part is devoted to a brief description of the boiler, the specified parametersand the compilation of the temperature profile. The main computational part of thiswork is divided into 6 parts. The first contains preparatory calculations, including thecalculation of boiler eiciency. In the second part, a flue gas duct is designed. This isfollowed by a thermal calculation of the boiler for all heat exchange surfaces. The last 3parts deal with the design of the drum, piping and the loss of boiler draft calculation.
Energy supply for greenhouse production
Najbrtová, Zuzana ; Poláčik, Ján (referee) ; Pospíšil, Jiří (advisor)
The import of the vegetable has prevailed in the long run over the own production. In connection with this reality and increasing demand for the food with higher quality the production greenhouse is more often built. The providing heat, cold and electricity for the year-round operation is related to the construction and working of these objects. The theoretical part of this theses describes possible ways how to cover energy consumption for the model greenhouse in Kožichovice, Třebíč region. The heat losses and the year-round heat consumption were stated for the selected model and compared with the exact values from Kožichovice. The following method of energy supply was selected based on the calculated energy consumption - the separate cogeneration unit, cooperation of several cogeneration units, a biogas station, a heat pump and central heating system. These methods of energy supply were subjected to technical and economical comparison.
Design of heating system for family house
Houzar, Filip ; Elbl, Patrik (referee) ; Lachman, Jakub (advisor)
This bachelor thesis deals with ways of family house heating. This thesis aimed to choose a suitable heating system for a specific family house. The first part of the thesis deals with a search of commonly used heat sources. This part contains a description of the work of these heat sources and their pros and cons. The following part introduces a specific family house, and the calculation of heat loss and annual heat consumption is performed. Then, three proposals are selected, for which the costs of their operation and return are calculated. At the end of the thesis, the proposals are compared and evaluated from an economic point of view. Based on this comparison, the most suitable proposals are selected, and the conclusions are commented on.
Design of heat source for heating a family house
Kotráš, Pavel ; Lachman, Jakub (referee) ; Baláš, Marek (advisor)
The main aim of this bachelor thesis is a proposal of a heat source for a specific house. The first part is a research of different heating technology. In the second part there is a shortlisting of heat sources for this specific house and then calculating of costs for the selected heating sources. These costs are calculated from heat losses of the object. After the economic comparison one source is selected, from which costs of heating are calculated with three versions of possible insulation of this house.
Environmental and Economic Aspects by House Heating
Ondruch, Jiří ; Brázdil, Marian (referee) ; Lisý, Martin (advisor)
Bachelor thesis deals with all possible methods of heating, which can be used for heating family house. The thesis emphasizes mostly on methods new, progressive and environmentally friendly. In the last part of this thesis, the chosen methods are demonstrated on model house.
Effective Heating Systems for Family Houses
Čulík, Martin ; Poláčik, Ján (referee) ; Lisý, Martin (advisor)
This bachelor’s thesis deals with a summary of basic information and possibilities of heating family houses. Designing the right type of heating system is really important factor for a good operation of heating and also for the right comfort inside of the house. There will be description and calculations of the specific house in the second part of the thesis.
Design of a source for heating a family house
Bartlíková, Zuzana ; Elbl, Patrik (referee) ; Baláš, Marek (advisor)
This bachelor thesis deals with heating sources for family houses. Their advantages and disadvantages and issues with heat sources selection. The first part of the thesis contains basic information about methods of heating. The second part is already practical, where are used knowledge with heat source design for specific family house. In the end of the thesis are heat source designs evaluated, compared and a heat source is selected. This heat source would be possible to buy, if is there some possible change for current existing heating source in future.

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