Sökning: "lean burn"
Visar resultat 1 - 5 av 36 avhandlingar innehållade orden lean burn.
1. Alternative Combustion Strategies for Gasoline Engines
Sammanfattning : Due to increasingly strict legislative demands and customer concerns regarding CO2emissions, there is a need to develop and implement new combustion strategies forgasoline (Otto) engines. In attempts to meet this need, most attention is focusing onthe low load/speed range where the classic spark ignition strategy (SI) has poorefficiency, mainly due to the throttling of the intake air causing pumping losses. LÄS MER
2. Experimental studies of NOx storage catalysts -Preparation, characterisation, NOx regeneration and sulfur deactivation
Sammanfattning : .... LÄS MER
3. Aging effects on commercial lean NOx trap catalysts
Sammanfattning : As a countermeasure to global warming, vehicles with low carbon emissions are being investigated by promoting lean-burn engines and high combustion efficiencies. However, one limitation to the increasing use of these engines is the need to develop corresponding catalytic systems for controlling the nitrogen oxide (NOx) emissions in their lean exhaust. LÄS MER
4. Experimental Studies of Advanced Ignition Systems for Lean Burn Natural Gas Engines
Sammanfattning : One of the greatest challenges for the transport sector today is reducing its environmental impact. This applies especially to the emission aspects, much due to increasingly stringent emissions legislations. LÄS MER
5. Exergy Evaluation of Engine Operations : Combustion Process to Exhaust Flow
Sammanfattning : Transitioning the transport sector to clean energy sources is crucial for mitigating greenhouse gas emissions and achieving carbon neutrality. A collaborative solution, combining both electric vehicles and combustion engines using renewable fuels, may prove more effective than competitive ones. LÄS MER