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BMW Up-to-date SI-engines
Šroba, Roman ; Prokop, Aleš (referee) ; Dundálek, Radim (advisor)
The Bachelor’s thesis deals with modern BMW spark-ignition engines. It provides an overview of current automotive design solutions in gasoline engines. The work is focused on three main areas. The first part describes the latest and unconventional technologies used in current BMW spark-ignition engines. The second part is focused on design solutions in specific aggregates, their evaluation or comparison with contemporary competition. The last part describes the hybrid vehicles and the car manufacturer's response to emission standards with focus on the waste heat of a car.
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Technology of Selective Catalytic Reduction for Passenger Cars
Jurík, Juraj ; Janoušek, Michal (referee) ; Dundálek, Radim (advisor)
This bachelor’s thesis describes the selective catalytic reduction technology. It concerned of reducing nitrogen oxides in diesel engines. It describes components of the technology, their function and location in system. in first chapter there are described harmful substances of exhaust gas in connection with this technology. Second chapter contains description of emission standards. Next chapters are describing selective catalytic reduction and solutions of some manufacturers.
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Appliances for solid fuel for heating
Lackovič, Roman ; Hrnčířová, Michaela (referee) ; Štelcl, Otakar (advisor)
Bachelor's thesis "Appliances for solid fuel for heating" aims on the issue of emission measurement for solid fuel boilers. The first part is a theoretical introduction, where solid fuels are described, following are the types of appliances, which are powered by solid fuels. There are described legislation related to emission limits and principles of devices used for measururing emissions of solid fuel appliances at the end of the theoretical part. The second part is the attention devoted to description of measurement, that we have done, calculation of efficiency and emissions for measurement. Lastly, there is specified emission class to which the boiler, according to measurement, belongs.
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Comparison of the environmental impact of different car's drive concept
Kopca, Filip ; Blaťák, Ondřej (referee) ; Zháňal, Lubor (advisor)
This thesis describes structure and operation of particular car‘s drive mechanisms, examine and compares their level of harmfulness against living environment. From acquisition, manipulation and distribution of raw material needed for manufacturing vehicles, amount of used propellant, production of emissions during life cycle, resources needed for maintenance, demands of waste disposal and possibilities of recycling.
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Analysssis of Mixtured Pellets Combustion
Somora, Jakub ; Milčák, Pavel (referee) ; Lisý, Martin (advisor)
The bachelor thesis focuses on combustion of mixed pellets compared to combustion of mixtu-re of monomaterial pellets. The research part deals with fuel properties of pellets as well as problems arising from the combustion process. It describes the major impact of sintering at biomass energy use, which is also related with the composition of fly ash. It also contains a comparison of the basic parameters of wood and alternative pellets, as well as the emission which are created in process of biomass combustion. The experimental part deals with the ana-lysis and comparison of combustion of mixed pellets as compared to the mixture of monoma-terial pellets. It includes monitoring of emission and solid pollutants content. At the end, the measured data are evaluated and compared to the current standards.
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Synthetic fuels
Pitoňák, Adam ; Kučera, Pavel (referee) ; Píštěk, Václav (advisor)
The bachelor’s thesis on the topic “Synthetic fuels” aims to introduce the reader to the issue of synthetic fuels and the possibilities of their application for internal combustion engines as alternatives to the conventional fuels derived from fossil sources. The first part of the work is focused on the introduction and division of synthetic fuels according to primary raw material. Subsequently, the properties of the fuels are compared with commonly used fossil fuels. The thesis also deals with the comparison of the equivalents of the emissions of individual synthetic fuels per unit of thermal energy supplied to the engine. Thanks to the model presented in the thesis, it is possible to compare the amount of CO2 equivalent per driven kilometre. The conclusion of this work summarizes the result of the comparison of synthetic fuels with prospects of such fuel in the future.
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Impact of Secondary Air Temperature on Biomass Combustion
Vilga, Filip ; Baláš, Marek (referee) ; Lisý, Martin (advisor)
The main goal of this bachelor thesis is to make research work about the issue of biomass combustion and the experimental realization with practical verification of the effect of secondary air temperature on emmisions resulting from biomass combustion. Theoretical part describes the creation, usage and combustion of biomass focusing on combustion air. The experimental section describes the effect of the temperature of the secondary air on formation of emissions from the combustion of selected biomass type.
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Alternative Powertrains and Fuels
Ondica, Rastislav ; Prokop, Aleš (referee) ; Dundálek, Radim (advisor)
This thesis explores different options about how to drive a vehicle, than using petrol and diesel. It discusess alternative fuels for combustion engines. It also explains hybrid and electric powertrains. It concentrates mostly on aspects such as ecology, costs, safety and the possibility of using those solutions.
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Cooled EGR system loop architecture for gasoline engines
Pospíšil, Juraj ; Svída, David (referee) ; Bazala, Jiří (advisor)
Táto diplomová práca je zameraná na preukazovanie vplyvov rôznych architektúr spätnej recirkulácie spalín na preplňované benzínové motory. Simulácie boli vytvorené v termodynamickom simulačnom programme GT-Power. Práca začína porovnávaním vplyvov spätnej recirkulácie na ustálené stavy motora, najmä z hľadiska spotreby, ktoré sú následne implementované do tranzientných modelov, simulujúc emisné testovacie cykly. Na konci práce sa venujem vplyvom spätnej recirkulácie na funkciu oxidačno-redukčného katalyzátora a na funkciu turbodúchadla.
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