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Modern Trends in Alternative Powertrains
Křivánek, Filip ; Hloska, Jiří (referee) ; Dundálek, Radim (advisor)
This bachelor thesis deals with an overview of modern alternative powertrains for cars. The thesis is focused on the effort to lessen the negative impact on our environment. The main part of the thesis includes key advantages and disadvantages of drive units using alternative fuels, their specific properties, utilization and arrangement in cars. The work also describes in outline further alternatives of powertrains for the future.
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Using biofuels in air transport (legislation, measures)
Adámek, Petr ; Šplíchal, Miroslav (referee) ; Nastálek, Ondřej (advisor)
Bachelor thesis contains an overview of the legislation and measures of alternative fuels – biofuels and time mapping their development. Basic division of alternative fuels and focused on biofuels and their basic division and description technology of production, advantages and disadvantages compared to conventional fuels and making evaluation of preparedness for current and future using in civil aviation.
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Production of ethanol as an automotive fuel from renewable materials
Doležal, Martin ; Kropáč, Jiří (referee) ; Dlabaja, Tomáš (advisor)
The thesis deals with ethanol production using renewable energy ressources. It describes various manufacturing processes and the usage of respective input materials. It researches utilization of ethanol as engine fuel both as a mixture with conventional fuels and also as the principal component. Consequentionally, it proposes a design of combustion engines suitable for this fuel. Evaluation of advantages and disadvantages of substituting petrol products with bioethanol is provided. The thesis also includes energy and economic evaluation.
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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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Fuels in 21. century
Lébl, Jan ; Svída, David (referee) ; Dundálek, Radim (advisor)
This bachelor’s thesis is intent on introducing the overview of particular types of fuels used at present for ignition and diesel internal combustion engines. Marginally is mentioned the theme of fuels used for fuel cells. Further it deals with the composition of each fuel types and their characteristics and ecological aspects of their use. The ending of the thesis is aimed to formulation of the development trends in fuels and the prospects of each fuel type’s expansion in the future.
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Biomass as a basic raw material for the production of fuels and energy
JUNGA, Jan
The bachelor thesis deals with the production, distribution and significance of motor fuels from biomass. From a brief summary of some very basic, but also most biofuels to those currently in the unused but potentially significant. Assessment of the advantages and disadvantages of biomass fuels compared to fossil fuels and biofuels characteristic of the first, second and third generation. This paper presents a summary of findings Czech and foreign experts over the last few years.
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Hemp (\kur{Cannabis sativa}) as an energy crop
BOUDOVÁ, Miroslava
One of the main problems of the living environment deterioration is combustion of fossil fuels. It is necessary that people should start using natural renewable resources instead of already abandoned fossil fuels. Energy plants belong those natural renewable resources. One of the energy plants is hemp (Canabis sativa). The advantage of this oil-fibre plant is the possibility of its general usage. The aim of this theses was to sum up the informations about the hemp as an energy plant. In the hemp biomass yield reaches very good results. The hemp is possible to combust as a whole plant or even as hurds or make pellets and briquettes from these materials for the following burning. The heating power of pellets and briquettes compares to the brown coal. The oil extracted from the hemp seeds is possible to use as a fuel in the case of engine conditioning or it can be used as a raw material for the biodiesel production. The other possibility of the hemp energy usage is the production of bioethanol. The appropriate technology for bioethanol production is in progress. According to the forein studies, hemp is suitable due to composition of the biomass for the biogas production. This usage is still in progress. In the Czech Republic there are not so many negligible biogas stations, but these stations use organic animal salvage for the production of the biogas rather than energy plants. In the Czech Republic, hemp is used as the energy plant only for combustionis in the form of pellets or briquettes.
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Biotechnology as political problem
Sobotková, Lenka ; Dvořáková, Vladimíra (advisor) ; Lisa, Aleš (referee)
Thesis is concentrated on two biotechnologies: biofuels and genetically modified crops. Defines technical and economical characteristics, lists international agreements and czech and european legislation regarding both biotechnologies. Introduces opinions and analyses positions of selected political subjects as UNO, WTO, OECD, EU, catholic church and main czech political parties.
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