Avancerad sökning
Visar resultat 1 - 5 av 58 avhandlingar som matchar ovanstående sökkriterier.
1. On soot oxidation in heavy duty diesel engine combustion
Sammanfattning : .... LÄS MER
2. Late Cycle Soot Oxidation in Diesel Engines
Sammanfattning : Diesel engines are the most common engine technology used in transportation. Its widespread use comes from its inherent high efficiency and its relative low cost. It suffers from pollutant emission issues, however, that need detailed understanding of their origins to meet the strictest current and upcoming emission standards. LÄS MER
3. Multiscale methods for the fundamental understanding of diesel soot mitigation
Sammanfattning : Current regulations for diesel exhaust emissions cannot be met by engine improvements alone, and for this reason the diesel particulate filter (DPF) is a widely used aftertreatment component for the control of diesel particulate matter (PM). The DPF functions by trapping PM and destroying it by oxidation. LÄS MER
4. Characterization of Carbon Oxidation Kinetics for Particulate Matter Reduction Technologies
Sammanfattning : Transport related emissions of particulate matter (PM) represent a significant health risk and are therefore strictly regulated in most developed countries. An efficient technique to reduce emissions of combustion particles is to capture the particles in a filter, which must be subsequently regenerated by oxidation of the carbonaceous fraction of the PM. LÄS MER
5. Numerical Modelling of Soot Formation in Turbulent Non-Premixed Flames
Sammanfattning : This thesis describes an extended flamelet approach for modelling of soot formation in turbulent hydrocarbons diffusion flames. Detailed chemical kinetic mechanisms are used to compute species concentrations, temperature, density and soot formation rates as functions of flamelet coordinates in the space of mixture fraction and scalar dissipation rate. LÄS MER