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Heat exchanger flu gas - water/stem for tri-generation unit based on stroke engine
Hadraba, Jiří ; Baláš, Marek (referee) ; Pospíšil, Jiří (advisor)
This diploma thesis with resolution of technical and partially economical project of combustion exchanger of cogeneration unit for application of absorbing cooling. Considered types of exchangers are: combustions/water and combustions/steam. The other capitols include the description of cogeneration, trigeneration and other possible resolutions of intersections among mentioned systems; general overview of plant oils used as a fuel in energetics, particularly in compression engines in technology of combined production of electricity and heat.
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Trigeneration in building complex Technicka 2
Sukup, Jan ; Fortelný, Zdeněk (referee) ; Pospíšil, Jiří (advisor)
This thesis deals with electricity, heat and cold production and describes ways of their simultaneous production – trigeneration. The main intention is to describe the ways of cooling the A1 building which is used by The Faculty of Mechanical Engineering. There is a Vapor compression cycle, a One stage absorption cycle and a Two stage compression cycle designed for cooling A1 building. This thesis includes suggestion for suitable commercial units for the purpose of cooling and a comparison of their running costs. An economic analysis is also included. Another part of the thesis is the design of a one stage absorption cycle connected to cogeneration units placed in The Faculty of Mechanical Engineering campus. The condenser of this cycle is also designed.
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Utilizing of liquide biofuels for energy supply in the complex Technicka 2
Kopecký, Jakub ; Fiedler, Jan (referee) ; Pospíšil, Jiří (advisor)
Theme of this thesis is utilizing of liquide biofuels for energy supply in the complex Technicka 2. This work is divided into three parts. The first part dealt with the issue of liquid biofuels, both globally and within the Czech Republic. In the next part are noted technologies for heating, power and cooling of of liquid biofuels. In the third part is noted evaluation of using cogeneration unit from Seva, a.g. for komplex Technicka 2 in different types of traffic.
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Fuel cells
Ralbovský, Peter ; Škvařil, Jan (referee) ; Chroboczek, Libor (advisor)
This bachalor’s thesis deals with a fuel cells technology, their principle and division. There’s also describes how to obtain hydrogen from natural gas as fuel. Furthermore, there are advantages and disadvantages of fuel cells. At the end of the work there are applications of fuel cells and their use in cogeneration and trigeneration.
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Trigeneration
Vítek, Stanislav ; Fortelný, Zdeněk (referee) ; Pospíšil, Jiří (advisor)
The aim of this thesis is present procedure and advantages of cogeneration and trigeneration. There are described primary cogeneration units which transform energy contained in fuel to required form of energy. Another part of the work deals with comparison of cooling technologies, namely vapour-cycle and absorption cycles. At the conclusion of the bachelor thesis, the economic assessment is present for all considered for cooling systems with reference to durability of the system.
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Trigeneration
Hadraba, Jiří ; Chroboczek, Libor (referee) ; Fortelný, Zdeněk (advisor)
This bachelor thesis is the recherche dealing with cogeneration and trigeneration consecutively. There are described prevailing primary units designated to the transformation of the energy of the fuel in cogeneration units to electricity and heat. The next chapters are dedicated to the absorbing and compression machine cooling. There are also analysed the possibilities of the heat accumulation and the influence of trigeneration on the enviroment.
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Energy use of biomass
Nosek, Miroslav ; Škvařil, Jan (referee) ; Moskalík, Jiří (advisor)
The point of this bachelor thesis is to make out a retrieval for energy use of biomass. In the first part, there is a description of basic energy features of biofuels, which influence their use as an energy source. There is also listed a description of some technologies for production of energy from biomass. The second part of the thesis is dealt with using biomass in cogeneration. Even that there is a description of some cogeneration systems presently use in any energy applications. In the trird part, there is made out a comparation of expensiveness of using conventional unit with natural gas combustion and using a units with biofuel combustion.
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Biogas as a fuel for cogeneration unit
Domanský, David ; Pěček, Jan (referee) ; Beňo, Zdeněk (advisor)
The objective of this bachelor thesis is a description of biogas as a fuel for cogeneration unit. The exordium is focused on biogas origin, use and storage. The document body deals with principle of cogeneration technology and derived trigeneration technology. In the next part are described the compounds in biogas, which adversely affect the running of cogeneration units. There is also included concrete example of using the cogeneration unit with biogas.
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The design of the production of biogas from fresh grass.
ŽIVNÝ, Jakub
Work is concered with the biogas production from the fresh grass mass, which come up when the grass is being cut on regular basis in the parks and side parts of communities and cities. There is a detailed description of the biogas production defined in the beginning of the Theses in the literature overview. Next, we define the material properties suitable for the biogas production, concerning on the grass mass. In practice, there is a prototype example showing how the biogas station could manipulate the fresh grass mess in real, linked to the harvest line.
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