Essays about: "avgassystem"

Showing result 1 - 5 of 12 essays containing the word avgassystem.

1. 1. Development of Acoustic Simulation Methods for Exhaust Systems

   University essay from KTH/Optimeringslära och systemteori

   Author : Christin Friberg Femling; [2021]
   Keywords : Optimization; Acoustic Optimization; Systems Engineering; Engine Acoustics; Vehicle Acoustics; Internal Combustion Engine Acoustics; Exhaust Orifice Noise; Pass-by Noise; Optimering; Akustisk optimering; Systemteknik; Motorakustik; Fordonsakustik; Akustik hos Förbränningsmotorer; Avgasljud;

   Abstract : Noise pollution is a growing concern due to its harmfulness to human health. Heavy vehicles powered by internal combustion engines stands for a major part of the environmental noise, why noise reduction is an increasing priority in enginve development. READ MORE

3. 2. Identifying risks of AdBlue spray on stainless steel surfaces

   University essay from KTH/Kemiteknik

   Author : Evelina Tvinne Flyg; [2021]
   Keywords : Urea; Stainless steel; SCR; Deposit; Corrosion; Urea; rostfritt stål; SCR; Avlagring; Korrosion;

   Abstract : Utsläppskontroll, reglerad av allt strängare lagstiftning, ställer höga krav på utvecklingen av noggranna efterbehandlingssystem för avgaser. När det gäller utsläpp från dieselmotorer utgör NOx-minskning en av de största utmaningarna. För tunga fordon tacklas denna utmaning ofta genom ett SCR-system. READ MORE

4. 3. A GENeric Internal Combustion Engine model : LiU-Genie

   University essay from Linköpings universitet/Fordonssystem

   Author : Oskar Lind Jonsson; [2021]
   Keywords : ;

   Abstract : As the demand for control in modern vehicles grows, models are needed to develop a better understanding of processes and engine behavior. The thesis contributes with a generic extended MVEM with SI and CI as well as VVA compatibility and modeling structure using MATLAB/Simulink environment. READ MORE

5. 4. IC-Engine Source Characterisation and exhaust system simulations

   University essay from KTH/Marcus Wallenberg Laboratoriet MWL

   Author : Pontus Gräsberg; [2021]
   Keywords : IC-engine; source characteristics; Multiload method; one-port source; exhaust system; Bränslemotor; källkarakterisering; avgassystem;

   Abstract : To be able to predict the sound pressure level emitted by a exhaust system one must be able to describe the source. The source in the form of an engine can linearly be described as a source strength and a source impedance. An IC-engine can acoustically have a non-linear part meaning that the source characteristics have a dependency on the load. READ MORE

6. 5. Observing phase changes in real time on ultrathin Iron oxide surfaces

   University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

   Author : Harald Wallander; [2019]
   Keywords : CO oxidation; platinum; iron oxides; Physics and Astronomy;

   Abstract : Studying catalysts under such non-equilibrium conditions is a step towards approaching more realistic reaction conditions for working catalysts. Reactivity during phase changes of ultra-thin FeO2 films grown on Pt(111) are studied in situ with Ambient Pressure X-ray Photo Emission Spectroscopy and Quadrupole Mass Spectrometry, while running the CO oxidation reaction at 160°C and 0:6 mbar. READ MORE