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Showing result 1 - 5 of 19 essays matching the above criteria.

1. 1. Influence of pulsing on PVD TiAlN coating microstructure and mechanical properties : Master thesis project on the impact of deposition parameters on performance and properties of PVD titanium aluminum nitride.

   University essay from Karlstads universitet

   Author : Marcus Roseen; [2023]
   Keywords : ;

   Abstract : This thesis investigates the influence of pulsing on the mechanical properties of PVD TiAlN coatings. The thesis focuses on defects caused by droplets during the arc-evaporation technique by altering the duty time, which affects mechanical properties. READ MORE

3. 2. Modelling the Water Table in a Bog

   University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Tobias Bowley; [2023]
   Keywords : Physics and Astronomy;

   Abstract : Over the past five years, an ongoing study at INES, Lund University, have examined the encroachment of trees and vegetation into a bog ecosystem in northern Scania, Sweden. While several factors have been identified as contributing to this ecological transformation, including, nutrient availability, and climate, the hydrological aspect remains a key area of investigation. READ MORE

4. 3. Investigation into Urea Deposit Risk by varying parameters in the control system related to urea evaporation

   University essay from KTH/Kemiteknik

   Author : Anna Sandström; [2022]
   Keywords : Urea Deposits; Urea Decomposition; Selective Catalytic Reduction; Urea Dosing; Ureautfällning; Ureanedbrytning; Selektiv katalytisk reduktion; Ureadosering;

   Abstract : I och med nuvarande och kommande lagkrav för utsläpp från tunga lastbilar finns en efterfrågan på utvecklade strategier för utsläppsminskning. För att kontrollera utsläppen av kväveoxider (NOx) används katalytisk omvandling med AdBlue (vätskeblandning av urea och vatten). READ MORE

5. 4. The Potential of Electrification in reducing Emissions from Passenger Cars in Stockholm County by 2030 : A Modeling Study of the Potential of Plug-In Hybrids and All-Electric Cars in reducing Greenhouse Gas Emissions and Air Pollution

   University essay from KTH/Transport och systemanalys

   Author : Arvid Hedbäck; [2021]
   Keywords : electric cars; electrification; Stockholm; 2030; modeling; Scaper; HBEFA; CO2; air pollution; nitrogen oxides; NOx; hydrocarbons; HC; particulate matter; PM10; PM2.5;

   Abstract : This study examines the potential of electrification in reducing greenhouse gas emissions and air pollution from passenger cars in a short- to mid-term time perspective. Using Stockholm County as a case study, this has been done in a three-step process by modeling the relative change in emissions between 2019 and 2030. READ MORE

6. 5. CFD Simulation of Urea Evaporation in STAR-CCM+

   University essay from Linköpings universitet/Mekanisk värmeteori och strömningslära

   Author : Oscar Ottosson; [2019]
   Keywords : Urea; AdBlue; SCR; Solid Deposit; NOx; nitrogen oxides; CFD; speedup; spray simulation; UWS; diesel after-treatment; STAR-CCM ; AVL Fire; Scania; Sweden; NXPS; LiU; DOE; Urea; AdBlue; SCR; Klump; NOx; kvävedioxider CFD; uppsnabbning; spray simulering; UWS; efterbehandling av diesel-motor; STAR-CCM ; AVL Fire; Scania; Sverige; NXPS; LiU; DOE;

   Abstract : Diesel engines produce large amounts of nitrogen oxides (NOX) while running. Nitrogen oxides are highly toxic and also contribute towards the formation of tropospheric ozone. READ MORE