Sökning: "spray formation"
Visar resultat 26 - 30 av 107 avhandlingar innehållade orden spray formation.
26. A Study on Spray-Guided Stratified Charge Systems for Gasoline DI Engines
Sammanfattning : Innovative technologies are required to meet ongoing challenges to reduce the CO2 emissions from passenger cars and their fuel consumption. Such technologies are usually complex and require detailed analyses to deliver efficient, reliable systems. LÄS MER
27. Large-eddy simulation on the effects of fuel injection pressure on gasoline spray characteristics
Sammanfattning : Increasing the injection pressure in gasoline direct injection engines has a substantial potential to reduce emissions while maintaining high efficiency in spark ignition engines. Present gasoline injectors operate at pressures of 20 to 30 MPa. LÄS MER
28. Numerical Modeling of Soot and NOx Formation in Non-Stationary Diesel Flames with Complex Chemistry
Sammanfattning : A complex chemistry model of reduced size (65 species and 268 reactions) derived on the basis of n-heptane auto-ignition kinetics, small hydrocarbon oxidation chemistry, polyaromatic hydrocarbon (PAH) and NOx formation kinetics together with a phenomenological soot model has been implemented in the KIVA code for multidimensional Diesel spray combustion simulations. An EDC (Eddy Dissipation Concept) based partially stirred reactor model is used to handle the turbulence-chemistry interaction. LÄS MER
29. Development and Application of Laser Techniques for Studying Fuel Dynamics and NO Formation in Engines
Sammanfattning : Development and application of some laser techniques for the study of engine combustion are presented. The investigations mainly cover two aspects: fuel dynamics and formation of NO. LÄS MER
30. Numerical Studies of Methanol PPC Engines and Diesel Sprays
Sammanfattning : The global environment suffers from utilizing fossil fuels to powering internal combustion engines (ICE), due to the massive amounts of released CO2. Besides the global impact, the local environments experience high concentrations of harmful pollutants such as NOx, CO, soot and particulate matter (PM). LÄS MER