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Biomass use in district heating
Dlouhá, Kristýna ; Kracík, Petr (referee) ; Baláš, Marek (advisor)
This bachelor’s thesis deals with the utilization of biomass in district heating. The introductory part of the thesis is dedicated to biomass, its division and ways of its utilization for energy purposes. The following section describes in more detail each of the technologies for power generation from biomass. In the third part, a few of our energy cogeneration sources are stated, they use previously mentioned technologies. At the end of the thesis there is a statistical overview of the utilization of biomass in district heating in the Czech Republic over the last 10 years.
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District heating systems in the Czech Republic in the context of legislative changes
Hylas, Martin ; Poul, David (referee) ; Putna, Ondřej (advisor)
The bachelor thesis focuses on the analysis of the issue of district heating (DH) with regard to legislative changes in the European Union. The first part deals with the analysis of the issue and the evaluation of the state of CZT in the Czech Republic. The European Union's position on climate change, caused by increasing greenhouse gas emissions, which are significantly produced by DH sources, is also discussed. The research part ends with an analysis of possible changes in the heating industry leading to the fulfillment of legislative requirements in the future. The second part of the bachelor's thesis deals with the elaboration of a case study of the change of the fuel mix for the heat source in the existing locality with the use of the technical-economic model. The main goal is to evaluate the usability of renewable resources (biomass, waste) as primary fuels instead of natural gas. The result of the practical part is a comparison of individual variants and changes in the cost of producing 1 GJ of heat compared to the reference variant.
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Cogeneration
Pawlitko, David ; Brázdil, Marian (referee) ; Kracík, Petr (advisor)
This bachelor’s thesis deals with the issue of cogeneration. At the beginning of the thesis, main principles and application of cogeneration are described. Further, various kinds of production of electricity and heat are introduced including comparison of advantages and disadvantages of concrete technology. Another possibility of primary fuel savings are presented too. Thesis also contains Czech and European legislation related to cogeneration, including some changes which bring for year 2013. At the end, heating industry in Czech Republic with its current problems is mentioned.
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Model of district heating network
Kolenčíková, Jana ; Skála, Zdeněk (referee) ; Pospíšil, Jiří (advisor)
Subject of this thesis is district heating and heating network model design. Firstly, it de-scribes basic principles of heat supply and its elements. Secondly, computational model of heating network is created based on grid map of the network. The model contains proposed pipeline system and calculation of heat and pressure losses. Lastly, price map for heat con-sumption points, in dependence on heat losses, is presented.
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Source for heat production in the Czech Republic
Macek, Robin ; Kracík, Petr (referee) ; Baláš, Marek (advisor)
This bachelor’s thesis deals with sources for heat production in the Czech Republic. The first part is a research part and is about used heating technology in our country. The second part is again research part and describes individually in more detail parts of the heat sources, as boils, turbines, heat exchangers a heat distribution. The next chapter compares advantages and disadvantages of central heat supply and local source of heat, first theoretically and then practically. The last part balances production of the heat and electricity from the point of view of the fuel used and the amount of production over the past 15 years.
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EFFECTIVE UTILIZATION OF MUNICIPAL SOLID WASTE IN HEAT AND POWER SYSTEMS
Putna, Ondřej ; Klemeš, Jiří (referee) ; Ucekaj, Vladimír (referee) ; Stehlík, Petr (advisor)
The dissertation thesis is focused on the issue of energy recovery of waste. It contributes to optimization models developed in the author's workplace in the long term, which serve to simulate material flows in waste management and to search for an optimal waste management strategy. The main objective is to assess the potential for the use of heat produced in waste-to-energy plants as a key factor for the economy of these facilities. The thesis therefore represents an activity on the border of the fields of waste management and heating. Partial mathematical models were developed within the scope, for which it was necessary to collect input data, especially in relation with district heating networks. These models were then used in a comprehensive optimization model describing the integration of waste-to-energy plants with other heat sources. This main model was extended to include the environmental aspect.
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Source for heat production in the Czech Republic
Bártová, Jana ; Kracík, Petr (referee) ; Baláš, Marek (advisor)
This bachelor thesis deals with thermal recources in the Czech Republic. The first part of the work is about the division and description of heating plants used for the production of thermal and electric energy. The second part of the thesis describes the advantages and disadvantages of district heating and individual heating. The last part of my work contains statistical processing of heat sources located in the Czech Republic.
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Losses in central heat supply pipes
Stupka, Jaroslav ; Milčák, Pavel (referee) ; Baláš, Marek (advisor)
This bachelor thesis is dealing with heat loss in central heat supply pipes. First of all, research of pipe insulation, heating networks and pipe installation has been done. Then, the section of heating network has been described. After that, heat loss has been calculated separately for each dimension as well as type of insulation and pipe installation. It has been also evaluated during heating and out of heating season. In the end, total heat loss in the section of heating network using summation of that particular heat loss has been quantified.
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Indoor environment in residential buildings
Hudcová, Nikola ; Formánek, Marian (referee) ; Počinková, Marcela (advisor)
The master‘s thesis deals with the design of heating and hot water preparation for the panel house G57 in Brno. The thesis consists of three parts, namely theoretical, computational and experimental. The theoretical part deals with the indoor environment of buildings. The calculation part deals with the complete design of the building's heating. Two variants of the design of the heat source are made, the first variant is a central heat supply and the second is a cascade of three heat pumps. Hot water preparation, fittings, circulation pumps, security devices and other equipment are designed for both heat source variants. The experimental part contains the measurement of selected parameters of the indoor environment in 3 different objects for housing. The task of the measurement was to find out whether the criteria of the indoor environment of the objects for living are met.
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Absorption cycle in the heating industry
Pleva, Ondřej ; Fiedler, Jan (referee) ; Pospíšil, Jiří (advisor)
Goal of this thesis is to introduce technology of absorption heat pumps in various modifications. Technical design draft is created for chosen modification (single stage unit water-LiBr) and based on given parameters calculated in computing software EES (engineering equation solver) and process is explained step-by-step. Following part of thesis contains reference design draft of heat plant and this design is used to demonstrate several different options of applying absorption heat pump including version capable of providing also cooling. Those options are compared with each other from technological and economical stand point.
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