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Boilers for solid fuel
Zezulka, Patrik ; Kudela, Libor (referee) ; Baláš, Marek (advisor)
This bachelor thesis deals with the heating of houses with boilers for solid fuels. Thesis is divided into several parts. In the first part is dealt with most common solid fuels, their characteristics, composition and modifications for house heating. The second part is focused on solid fuel boilers, describes chosen boilers, their operation, their advantages and disadvantages. In the last part is economically assessed the suitability of selected solid fuel boilers for heating the model house.
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Heat exchanger design
Tatýrek, Lukáš ; Kudela, Libor (referee) ; Baláš, Marek (advisor)
The designed heat exchanger is part of a cogeneration unit, which I am considering as a possi-ble alternative for acquiring electrical and heat energy during heating season. The objective is to compile research about usable heat exchangers, pick a suitable technology for flue gas water application, calculate and design a heat exchange surface, calculate pressure drops and pro-cess the enclosed drawing documentation of the heat exchanger. For calculations, the recuper-ation gasket plate heat exchanger was chosen. The design of gaskets is nonstandard as it has been made for higher than usual temperatures. The result of this work is a heat exchanger with uncommon dimensions with a very low count of plates.
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„Smart cities“ and decentralized production of energy
Opátová, Alexandra ; Kudela, Libor (referee) ; Špiláček, Michal (advisor)
This bachelor thesis describes the principles of decentralized energy sources, together with the advantages or challenges that concern the problem. The first chapter describes the concept of "smart city" and the field of use. There are also described options for modeling of urban areas as a unit. The second chapter focuses on the concept of decentralized power generation and the benefits that such a system can offer. The following chapters deal with cogeneration units and electricity storage options. The last chapter focuses on a issue of integrating decentralized power generation into the grid and compares various mathematical models and possibilities of regulation.
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Heat pump for resident heating
Abrahám, Jan ; Kudela, Libor (referee) ; Pospíšil, Jiří (advisor)
The bachelor thesis deals with the use of a heat pump for heating a family house. In the theoretical part of the thesis the principle of operation of the heat pump is introduced. This part also explains the coefficient of performance and describes the different types of heat pumps according to the heat source with their advantages and disadvantages. In the practical part the thermal losses of the selected building are calculated. The heating system is designed and finally the economical evaluation and the return of investment are determined.
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Design of heat exchanger
Kopřivová, Anna ; Kudela, Libor (referee) ; Milčák, Pavel (advisor)
This bachelor thesis discusses a design of the water-steam type heat exchanger. The nature of heat exchangers is based on increasing the efficiency of thermal circuits. At the beginning of the thesis, a principle of these thermal cycles, namely Carnot’s and Rankine-Clausius’s cycles are described. Furthermore, in this thesis, I deal with heat exchangers alone together with their basic distinction and more detailed description with a closer look at specific sorting of the heat exchangers regarding their construction, which means recuperative, regenerative and direct contact exchangers. Special attention is paid to tubular exchangers, which create the core of thermal computation. Closing part involves a design of a low-pressure tubular heater by means of assigned parameters of work substances at the input and the output.
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The workings of Autonomous Greenhouses
Formánek, Adam ; Kudela, Libor (referee) ; Elbl, Patrik (advisor)
This research work aims to concentrate information from extensive literature dealing with autonomous greenhouse related topics. The first part of the work is focused on basic concepts related to autonomous greenhouses. The second part explains an amount of concepts defining the logical apparatus and logical principles used in autonomous greenhouse design. Furthermore, this work deals with the physical aparatus of intelligent greenhouses, primarily its actuators. Finally it deals with autonomous greenhouse competitions, with focus on their conditions and logic.
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Reducing the energy demand of a family house
Ondrák, Adam ; Kudela, Libor (referee) ; Pospíšil, Jiří (advisor)
The thesis deals with the issue of reducing the energy intensity of a family house and it approaches this issue in three steps. Firstly, the examination of the heat loss of the whole building, using the standard ČSN EN 12 831 and thermal vision. Subsequently, this is followed by the choice of the most economically suitable solution, so that the most modern technologies for reducing heat losses can be utilized and the project repays as quickly as possible. Furthermore, we will find the most suitable variant of a photovoltaic power plant, with regard to different types of photovoltaic panels. In conclusion, the price of the entire project and its repay and then other measures, that could be used to reduce project costs or the acquisition of additional equipment to reduce energy consumption, are listed.
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Energy gains of agrofotovoltaics
Huf, Milan ; Kudela, Libor (referee) ; Pospíšil, Jiří (advisor)
This master's thesis focuses on the possible synergy between agricultural activity and solar energy production. The theoretical part of this work begins with the processing of theoretical knowledge in the field of photovoltaics. Furthermore, the concept of agrophotovoltaics is explained, its advantages and possible types of installation are introduced. Furthermore, existing installations around the world are presented and the situation around agrophotovoltaics in the Czech Republic is outlined. The practical part of the work is focused on the creation of the model and its programming so that the panels create shade for cultivated crops. The conclusion of the thesis is devoted to the design of an agrophotovoltaic installation in the Brno area and the assessment of its technical and economic aspects.
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Design of a heat exchanger in a nuclear power plant
Kocanda, Tomáš ; Kudela, Libor (referee) ; Milčák, Pavel (advisor)
This bachelor thesis focuses on the design of heat exchange in nuclear power plant, more specifically on low-pressure heater 2. The introduction of bachelor´s thesis deals with the introduction of nuclear energy and nuclear power plants. The following chapters describe low-pressure regeneration as well as low-pressure heater. In the last part of the work, the heater is calculated from the entered values and values subtracted from the overall thermal scheme of the secondary circuit of the Dukovany nuclear power plant.
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