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The development of energetics in the Czech Republic during the following years
Musil, Miloš ; Kracík, Petr (referee) ; Toman, Filip (advisor)
This thesis analyses the current Czech energy sector. It describes its current state and outlines possible scenarios of its development in future years in the context of the energy transformation. The thesis seeks to analyse the current situation of the energy sector in the country, assess its strengths and weaknesses and identify opportunities and threats for future development. The thesis describes the different parts of the Czech energy sector, such as the electricity, gas, heating and oil industries, including production sources, consumption and emissions. Most emphasis is given to the electricity sector. The capacities and potentials of the different sectors are analysed alongside the possible future scenarios outlined. Part of the thesis is also focused on describing and explaining the composition and construction of electricity and gas prices in the Czech Republic. Emphasis is also placed on placing the Czech energy sector in the broader context of the energy sectors of European countries and includes various scenarios for the development of the electricity sector in Europe. In the context of the current geopolitical situation in Europe and the modernisation and transformation of this sector, it is necessary to build new energy sources.
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Operation of electric vehicles, hybrid vehicles and vehicles with an internal combustion engine
Herzog, Radim ; Píštěk, Václav (referee) ; Kučera, Ondřej (advisor)
This bachelor's thesis deals with the comparison of different propulsion concepts and their consumption, efficiency, and amount of emissions produced during operation. Although electric vehicles do not produce any local emissions, it is necessary to consider that emissions are generated during the production of electricity in power plants. The main part of the thesis introduces the functional principles of individual propulsion systems. Furthermore, it describes the formation of exhaust gas emissions in combustion engines and outlines their limits. Subsequently, the amount of emissions produced by a power plant for the operation of a specific example of an electric vehicle and a hybrid vehicle is calculated. Finally, a comparison of emissions production from representative examples of each propulsion system is illustrated.
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Predicting spark-ignition engine emissions
Jirout, Petr ; Böhm, Michael (referee) ; Štětina, Josef (advisor)
This diploma thesis deals with the possibility of predicting emissions of SI engines. The aim was to create an algorithm for predicting unburned hydrocarbons and carbon monoxide, based on ECU signals. The algorithm is based on practical experiments with SI engines. In the summary, the issues and the possible use of the created algorithm following the incorporation of EU7 are outlined.
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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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European emission legislation
Rytina, Matěj ; Kučera, Pavel (referee) ; Píštěk, Václav (advisor)
The aim of this bachelor thesis was to write about exhaust emissions and their influence on environment, briefly sum issue of emission standards up and mainly sum existing facts about the “Dieselgate” affair up. I wanted to objectively evaluate this issue in my bachelor thesis. Asset of this thesis was mend to be in fact that this affair has not been academically covered yet.
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Trends in the development of hybrid vehicles
Ďurica, Matej ; Tobiáš, Martin (referee) ; Štětina, Josef (advisor)
This bachelor thesis is dedicated to make brief research in the hybrid automotive department, focused on the last ten years of development. The first part describes the categories of hybrid vehicles with an emphasis on the development of accumulators and related technology. An important part is the advantages and disadvantages of systems and drives. The second part deals with the future of hybrid drives, applications mainly in heavy industry, and the possibilities of changing "heavy" fossil fuels with "greener" alternatives. At the end of the work is the evaluation of the impact of the COVID crisis on the automotive industry.
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Ignition engine emissions
Semela, Lukáš ; Píštěk, Václav (referee) ; Kaplan, Zdeněk (advisor)
This thesis deals with emissions of ignition engines. The introduction acquaints the reader with the history and lays out the reasons why it is a crucial topic to be dealt with. Furthermore, the term emission is being explained as well as the description of its chemical composition, the impact on the environment and human organism. The method of measuring is also mentioned in this thesis. Then the explanation continues with European Union’s current legislation. The whole thesis is concluded with information on the additional modification of emissions and chapter that outlines the future of automobiles regarding the environment.
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40/5000 Fine particles produced by the stove
Škvařil, Ondřej ; Baláš, Marek (referee) ; Pospíšil, Jiří (advisor)
This master thesis deals with problematics of fine particles produced during combustion in fireplace stoves. The theoretical part is focused on the analysis of the atmosphere, health consequences, solid pollutants, the formation of particles (origin), particle separation and how they are regulated by laws. Theoretical section of the thesis addresses analysis of biomass and its combustion. In the applied section are listed given methods of the particles measuring according to regulations, common errors during measurement and methods of identification of measured fine particles. Then follow specific measurements of the formed very fine particles produced by the SMPS method. Subsequently, the results of the measurement are evaluated and summarized in the conclusion.
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Alternative powertrains of vehicles
Filip, Vojtěch ; Kučera, Pavel (referee) ; Píštěk, Václav (advisor)
The aim of this thesis is the analysis of most common alternative drive systems currently used in cars, their comparison with the current gasoline and diesel engines. Familiarization with the technical solutions of drives, their categorization into several groups according to the specific key features. It also deals the most important components of an alternative fuels automobiles, respecting their strengths and also weaknesses that currently hinder expansion of these propulsions, economically as well as technically.
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Hydrogen vs. electricity - comparison of energy performance of EV powertrains
Šándor, Kristián ; Mišík, Ondrej (referee) ; Fišer, Jan (advisor)
The topic of emission reduction and the increase in the share of energy produced from renewable sources remains actual and highly discussed in 2021. It was the major reason why I chose to compose this bachelor’s thesis, in which I aim to critically evaluate and compare the energy performance of an electrical vehicle and a hydrogen vehicle. The theoretical part of the thesis outlines the aforementioned drivetrains as well as the plug-in hybrid drivetrain. The practical part of the thesis focuses on calculations of the energy performance of the drivetrains for the year 2021 with a rational estimate for 2050. The methods of electricity and hydrogen production are crucial for energy performance evaluation. Data shows that electric cars operated in countries with a high share of energy produced from renewable sources are the least energetically demanding. On the other hand, if the energy production depends predominantly on fossil fuels, it is more efficient to operate a hydrogen vehicle. Calculations show that when considering the indirect emissions during the operation as well as the energy performance, the plug-in hybrid vehicles are the least efficient. The difference in efficiency between electric and hydrogen vehicles varies depending on the mode of energy production of that specific country. The conclusion of this thesis also discusses advantages, disadvantages and technological challenges concerning the aforementioned drivetrains.
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