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Hydrogen production from renewable sources
Balko, Michal ; Kropáč, Jiří (referee) ; Houdková, Lucie (advisor)
The goal of this bachelor's thesis is to make a summary of actual hydrogen production possibilities both from fossil fuels and from renewable sources. First part deals with production by steam reforming of natural gas and water electrolysis. Next comes the production from biomass by photofermentation and fermentation. Attention is paid especially to input materials and process conditions. In the end chosen processes of production are compared by their energy intensity found out by simplified calculation.
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Alternative energy sources
Stránský, Jaroslav ; Moskalík, Jiří (referee) ; Škvařil, Jan (advisor)
In this work, I tried to summarize the current state of world energy resources that we use to convert into electrical energy. There is solved the question of compensation running short supplies of fossil fuels and reduce discharge of greenhouse gasses. I´m looking for suitable compensation in department of alternative energy sources, among which I included the power of the Sun, water, wind, geothermal energy, using heat pumps, combustion energy, nuclear energy, fuel cells and hydrogen use. About anyone of replacing sources you learn about its history, advantages and disadvantages, the principle of function energy transform devices, and compare the potential that is available in the CR and in the world.
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Study of sensoric properties of organic semiconductors
Saska, Pavel ; Šedina, Martin (referee) ; Salyk, Ota (advisor)
Compounds based on diketopyrrolopyrrole are organic pigments that behave as semi-conductors. Their analogues with pyridyl side group are due to their sensitivity to hydrogen potentially useful as hydrogen sensors. The aim of this work was to examine properties of sensors with an active layer of diketopyrollopyrolle derivatives. The sensors were tested on an apparatus built for this purpose at FCH VUT in Brno. More specifically, changes to conductivity of these sensors in the presence of hydrogen under various conditions were studied.
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Hydrogen fuel for internal combustion engines
Polnický, Václav ; Novotný, Pavel (referee) ; Píštěk, Václav (advisor)
Knowledge of all ower the world research, dealing with hydrogen combustion engines, were sumarized in this bachelor thesis. Ways of hydrogen production and its storing are mentioned too. This paper is focused especially to hydrogen-air mixture formation and its ignition solving. Some samples of hydrogen cars –booth of prototypes and serial products- were introduced too.
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Alternative Fuel Engines
Bilík, Michal ; Ramík, Pavel (referee) ; Dundálek, Radim (advisor)
This thesis deals with an overview of alternative fuels for road vehicles and their effect on ecology. This work also describes the specific characteristics and peculiarities of power units which run on alternative fuels, their advantages, disadvantages and shows examples of some vehicles.
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Fuel for internal combustion engines
Vrbický, Jiří ; Jedelský, Jan (referee) ; Štětina, Josef (advisor)
This thesis is concerned with basic features of fuels for internal consumption engines, especially their influence on thermal efficiency. It also introduces dividing of fuels and their compare in ecologic, economic and technologic side. It is concerned convectional fuels (gasoline, diesel oil) and alternative fuels (nature gas, bottled gas, hydrogen, biodiesel, biogas, methanol and ethanol).
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Hydrogen Combustion in Reciprocatin Piston Engines
Forbelský, Antonín ; Svída, David (referee) ; Dundálek, Radim (advisor)
In the thesis I focused on the summary of the facts available concerning hydrogen combustion engines. The work gives a brief history of hydrogen engines. The main part consists of a description of the specifics of the conversion of conventional internal combustion engine into hydrogen engine, and a brief overview of vehicles powered by hydrogen internal combustion engine. In conclusion, the work includes consideration of the future of this technology.
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Alternative drive
Přikryl, Karel ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
This bachelor's thesis describes types of alternative propulsion systems considering enviroment and reusable sources of energy. It also arguments its functionality and disadvantages. Specifically it talks about electric vehicles.
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Fuel cells in personal transport
Říha, Stanislav ; Blaťák, Ondřej (referee) ; Zháňal, Lubor (advisor)
This thesis is oriented to historical evolution of fuel cell, his total analysis, description of single disadvantage and advantage with which fuel cells battle. An other reason for urgency of using alternative fuel, brief description of car market and possible guess of fuel cell's future in personal transport are involved in an other part of this thesis. The end of the thesis deal with cars of fuel cells split in parts according to single car companies.
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