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Bio-gas plant heat utilisation effectivity analysis
Šmarda, Marek ; Frič, Ondřej (referee) ; Pavlas, Martin (advisor)
This thesis focuses on the analysis of heat efficiency and effectiveness of the Vojtěchov biogas station unit. The material balances were developed in connection with biogas created in the cogeneration unit. The heat produced by the cogeneration unit is distributed to reactors and drying rooms. Pursuing the main goal of the thesis, the research of the complete heating balance for all months has been conducted. Additionally, a variety of options were assessed, to find the best solution of how to increase the effectivity of the heat. As for the final solution, two recommendations have been proposed in the thesis. The first recommendation lies in a better usage of low-level heat distributed to the secondary fermentor. The second suggestion deals with the amount of heat from cogeneration unit to the system. The result of the analysis is the final recommendation on how to increase the efficiency of the heat usage and potential impacts of the solution on the subsidy according to the KVET standards received in the given year.
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Evaluation of cogeneration units in Waste-to-Energy plants
Chýlek, Martin ; Putna, Ondřej (referee) ; Ferdan, Tomáš (advisor)
The purpose of this bachelor thesis is familiarization with legislation of evaluating combined heat and power generation systems and discover it´s questionable spots. Another objective is to make universal model of incineration plant and to apply calculation mentioned in legislation on various options of technology. The end of thesis is devoted to analysis of results.
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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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Cogeneration influence on power industry and power market in Czech Republic
Dudáš, Michal ; Cerman, Marek (referee) ; Macháček, Jan (advisor)
The main goal of this master’s thesis is to find out the impact of future development in combined heat and power technologies, especially the impact on power market in Czech Republic regarding to historical development of photovoltaics and subsidy policy. There are three scenarios of installed power growth designed including calculations of renewable energy source financial fee as well as overall evaluation. The paper also deals with current status of combined heat and power technologies in Czech Republic, European Union and USA as well as legislature framework of CHP in Czech Republic and EU. There are also kinds of state grants described. In economical part of the paper there are NPV’s of particular cogeneration units calculated. The calculations were made both with current investment costs and reduced investment costs.
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New Trends in the Heat Industry
Menšíková, Barbora ; Baláš, Marek (referee) ; Kracík, Petr (advisor)
This bachelor thesis deals with the current state of the heating industry in the Czech Republic describing the centralized and decentralized heat supply especially the types of heat sources their distribution and heat transfer media, which ensure the transfer of heat energy from the source to the customers. Furthermore it deals with the overview and brief characteristics of selected companies, their sources and the installed facilities for combined production of electric and thermal energy. There are described in detail the representation of individual types of fuels that are burned in the facilities and an overview of these fuels in the installed capacity of the heating boilers. It also deals with prices for heat for end customers in selected cities of the Czech Republic. The conclusion of the work is focused on air pollution, emissions, their limits and norms and there is outlined the development of heating industry in the coming years with respect to stricter requirements for sources of pollution.
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COAT
Svobodová, Hana ; Pangrácová, Lucie (referee) ; Gabriel, Michal (advisor)
Although the main topic of my diploma thesis is Kabát, I describe in the introductory chapters of my previous work, because their creation and gradual emergence have been directed towards the final project - Kabát. As part of my sculpture, I concentrate mainly on the possibilities of transforming the human figure, using various classical and non-traditional sculptural materials. The fabric of a selected piece of clothing (in the case of a coat) is reinforced at a certain point in time, which I transposed into the feathered cavity - the coat that you put before you. His work with the "outer envelope of man" in the final passage of the text corresponds to the work of Czech and foreign artists.
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Evolutionary significance of visual traits of flowers and their influence on the pollinator constancy
Haveldová, Alice ; Štenc, Jakub (advisor) ; Klečka, Jan (referee)
Flower constancy is a behavior in which the pollinator visits flowers of the same plant species in a sequence more than would correspond to its preference for the given plant. This behavior is advantageous for plants because it can ensure efficient intraspecific pollen transfer which has a positive effect on their biological fitness. More efficient pollen transfer can lead to the selection of (visual and olfactory) flower traits that encourage flower constancy of pollinators. The main visual floral traits that affect constancy include colour, pattern, shape and size. However, these traits are of different importance for pollinators when they are deciding which flower to visit, and therefore their effect on flower constancy varies. The degree of flower constancy also differs between the functional groups of pollinators. Flower constancy is generally low in vertebrates, but insects and especially representatives of the order Hymenoptera are often flower constant.
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New Trends in the Heat Industry
Menšíková, Barbora ; Baláš, Marek (referee) ; Kracík, Petr (advisor)
This bachelor thesis deals with the current state of the heating industry in the Czech Republic describing the centralized and decentralized heat supply especially the types of heat sources their distribution and heat transfer media, which ensure the transfer of heat energy from the source to the customers. Furthermore it deals with the overview and brief characteristics of selected companies, their sources and the installed facilities for combined production of electric and thermal energy. There are described in detail the representation of individual types of fuels that are burned in the facilities and an overview of these fuels in the installed capacity of the heating boilers. It also deals with prices for heat for end customers in selected cities of the Czech Republic. The conclusion of the work is focused on air pollution, emissions, their limits and norms and there is outlined the development of heating industry in the coming years with respect to stricter requirements for sources of pollution.
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