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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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Alternative Fuels for CI-engines
Matoušek, Martin ; Řehák, Kamil (referee) ; Dundálek, Radim (advisor)
The topic of this bachelor thesis is alternative fuels applicable in diesel engines. First, a brief introduction to the diesel engine is given, then the individual alternative fuels are described. The most important findings about these fuels are summarized and a comparison with diesel fuel is made. Finally, each fuel is evaluated in terms of its advantages, disadvantages and applicability in practice.
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Základní fyzikální vlastnosti motorové nafty
Pištělka, Ondřej
In this bachelor's thesis, the substance known as diesel fuel is thoroughly described, and so are its physical properties. The history of diesel fuel, origin of crude oil and its mining and processing is described in first chapters. Afterwards, the diesel fuel is categorized and the categories are defined. An entire chapter is dedicated to diesel additives and biodiesel. In a review of relevant litarature, a chapter adressing current quality requirements of diesel fuel is found. Manipulation and transportation of diesel fuel is also adressed. The practical part consist of a characterization of tested fuel samples, a description of used equipment and methodics used in analyzing the captured data. The results are compiled into an table, which is easy to comprehend. The thesis is closed by discus-sion and analysis of those results.
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Pěstování olejnatých rostlin pro výrobu bionafty v České republice
Kobzinková, Nikola
The bachelor thesis deals with the history of the use of plants for the production of fuels, specifically for diesel engines. There are described crop rotation in the growing of oil plants and consequently their use in the field of transport, ie in the field of biofuels. It will describe the economic and energy demands of biodiesel production, which will give an overview of the development of financial support in the production and subsequent distribution of biodiesel produced. At the end, with the help of the obtained sources, a clear conclusion will be drawn, which also relates to the problem of substituting biodiesel-based fuels.
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Measurement of dielectric properties of liquid fuels for automotive power units
Redr, Martin ; Čech, Ondřej (referee) ; Chladil, Ladislav (advisor)
This bachelor thesis dealt with measuring of dielectric properties of propellants. The aim of the thesis was to find out differences between dielectric quantities of propellants from various manufacturers and in different proportions of refined to so-called bio-components. The theoretical physical principles of dielectric substances – permittivity and dissipation factor were described. In the thesis the most famous electrical insulation fluids whose dielectric characteristics are similar as propellants were mentioned. Furthermore, the study about dielectric properties of propellants and chosen fuels on the Czech market were mentioned. In the experimental part of the thesis, selected fuel samples at varying frequency and temperature were measured. These results were then evaluated and compared.
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Energy yields per one hectare of land in the South Moravian Region
Plášek, Tomáš ; Bayer, Robert (referee) ; Jandová, Kristýna (advisor)
This bachelor thesis compares methods of producing elektricity in biogas plant, in thermal power plants by burning biomass, in solar power plants and compares it with production of energy of fuel cells and the energy from biofuels, like biodiesel and bioethanol. It compares the energy yields of different energy production methods and evaluates their advantages and disadvantages. It compares the energy content of these fuels by model vehicle range.
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The Evolution of Public Opinions on the Development of Biofuels in Southeast Asia
Vosmíková, Alžběta ; Jančák, Vít (advisor) ; Janoušek, Zbyněk (referee)
The aim of the bachelor thesis is to analyze the change of opinions on selected problems, which have occurred during the last decade in connection with biofuels. The main question at hand is whether the form of discussion on the topics below may be related to the development of world biodiesel consumption. Attention is focused specifically on palm oil biodiesel. Two countries - Indonesia and Malaysia - were selected as the model area. The thesis deals with the issue of the relation of palm oil biodiesel and the environment on the example of the emission of greenhouse gases into the air. It also addresses the evolution of changes in opinions on small farmers, whose relation to environment is significantly different. Finally, the work evaluates the relationship of the society to biofuels and specifically to palm oil biodiesel. Keywords: Biofuels, biodiesel, palm oil, emissions, Indonesia, Malaysia.
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Možnosti získávání biopaliv
Fodor, Gabriel
This work deals with the use of biofuels as transport fuels. The first part is devoted to the basic distribution of biofuels division and biomass division for their production. The main part focuses on particular biofuels and the ways of obtaining these fuels. The work describes in detail the technological processes and trends in the production of biofuels, such as MTBE, ETBE, bioethanol, biodiesel, butanol, further global use of biofuels for transport, their properties in motor vehicles, their production and consumer prices. The paper gives the basic statistics of some major countries and Czech Republic about total biomass production, covering area of growing crops for the production of bioethanol and biodiesel, their prices. At the end the attention is paid to assessment of the positive and negative characteristics of biofuels and their effect on nowadays.
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