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The DPF and SCR systems
Novodomský, Tomáš ; Janoušek, Michal (referee) ; Dundálek, Radim (advisor)
The presented bachelor thesis deals with exhaust emission reducing systems for diesel engines. The first part is devoted to the composition of exhaust gases and emission standards. The thesis analyses the formation of solid particles, their regulation by the DPF system and its various variants. Further the principle of reducing the nitrogen oxide content in the exhaust gases by the selective catalytic reduction system is described. In the final part, there is a reflection on the future of emission reduction systems, emission standards and alternative drives.
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The Balance of the Nitrogen in Agriculture
Klír, Jan ; Beranová, Jana ; Dědina, Martin ; Wollnerová, Jana
Methodology addressing nitrogen balance issues is a suitable tool for verifying the correctness of agricultural management and shows the relation between nitrogen used in agriculture and its losses in gaseous form to air or in the form of nitrates to surface and groundwater. The assessment of nitrogen balance, greenhouse gas emissions and pollutants is closely linked and therefore requires the quantification of nitrogen sources used in agriculture. Synchronization of input data used to evaluate nitrogen flows in agriculture is essential to increasing the methodological level of reporting the nitrogen balance, greenhouse gas emissions and pollutants for the Czech Republic in terms of the requirements of international organizations.
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The DPF and SCR systems
Novodomský, Tomáš ; Janoušek, Michal (referee) ; Dundálek, Radim (advisor)
The presented bachelor thesis deals with exhaust emission reducing systems for diesel engines. The first part is devoted to the composition of exhaust gases and emission standards. The thesis analyses the formation of solid particles, their regulation by the DPF system and its various variants. Further the principle of reducing the nitrogen oxide content in the exhaust gases by the selective catalytic reduction system is described. In the final part, there is a reflection on the future of emission reduction systems, emission standards and alternative drives.
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