Sökning: "Slip efficiency"

Visar resultat 1 - 5 av 15 uppsatser innehållade orden Slip efficiency.

1. 1. Model Predictive Urea Dosing Control Strategy for Heavy-Duty Diesel Vehicles

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Mathias Schmekel; [2023]
   Nyckelord :Model predictive control; Selective catalytic reduction; Nitrogen oxides; Modell-prediktiv reglering; Selektiv katalytisk reduktion; Kväveoxider;

   Sammanfattning : Stricter requirements on the reduction of Nitrogen Oxides (NOx) in the emissions of heavy-duty diesel vehicles drives development for more efficient aftertreatment systems. An ammonia covered catalyst is one of the most successful technologies in reducing NOx by converting it into the harmless byproducts water and nitrogen. LÄS MER

3. 2. Strengthening of non-composite bridges by Partial Composite Action

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Författare :Johan Tjernberg; [2022]
   Nyckelord :Composite action; Composite bridges; Partial shear connection; Partial Composite Action; Shear connectors; Coiled Spring Pins;

   Sammanfattning : A common bridge type is the steel-concrete bridge where the concrete deck is built over steel girders. In many earlier designs the bridge type was often built as non-composite, which means that the concrete deck and the steel girder has no shear connection at the steel-concrete interface and therefore bend as individual components. LÄS MER

4. 3. Liquid Natural Gas : A study of the environmental impact of LNG in comparison to diesel

   M1-uppsats, Linnéuniversitetet/Sjöfartshögskolan (SJÖ)

   Författare :Jonas Edfors; Robin Bremberg; [2021]
   Nyckelord :Methane; LNG; Engine; Marine; Mole; Methane Slip; Ship; CO2; CH4; Emission; IMO; Exhaust gas; Environment; Propulsion; Heavy Fuel Oil; Ultra Low Fuel Oil; Diesel; Marine Diesel Oil; ECA; SECA; NECA; IMO; g kWh; EEDI; LSFO; Metan; LNG; Motor; Mol; Skepp; Miljö; Miljövänligt; Tjockolja; Diesel; Marine Diesel; Avgas; CO2; CH4; ECA; SECA; NECA; IMO; g kWh; EEDI; LSFO;

   Sammanfattning : Liquefied Natural Gases (LNG) has been an alternative fuel in the marine industry for several years, but lately, the amount of ships that have been powered by methane has increased a lot. Some of the reasons for this is because LNG does not contain any sulfur and releases less nitrogen oxides than traditional maritime fuels. LÄS MER

5. 4. Investigation of carbon capture technologies for Sävenäs waste-to-energy plant

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Författare :Jasmine Andersson; [2020]
   Nyckelord :CCS; flue gas treatment; waste incineration; energy balance; emission abatement;

   Sammanfattning : Carbon capture technologies have the potential to decarbonize the emissions to air from the heat and power sector and contribute to the necessary greenhouse gas emission mitigation in order to meet the Paris Agreement requirements. The energy requirement and ability to retrofit carbon capture units are crucial to convert existing power plants into more environmental benign processes to meet the Swedish national goal of greenhouse gas neutrality at 2045. LÄS MER

7. 5. Influence of nitrocarburization on the thermomechanical fatigue properties of ductile iron for exhaust components : Analysis and comparisons of TMF-properties

   Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Författare :Karl Larsson; [2019]
   Nyckelord :Thermo-mechanical fatigue; low cycle fatigue; thermal strain; ductile cast iron; nitrocarburizing;

   Sammanfattning : New stricter environmental legislation requires lower emissions and fuel consumption of automotive engines. Therefore the fuel efficiency must be increased but this leads to higher loads in the engine. As for the exhaust system it is affected by higher thermomechanical loads. LÄS MER