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Showing result 1 - 5 of 45 swedish dissertations matching the above criteria.
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1. On the Combustion Characteristics of Closely-Coupled LD Diesel Injection Strategies
Abstract : Multiple-pilot injection strategies with both moderate and short time separations (dwells) are investigated in a light-duty diesel engine. Both conventional and optical engine experiments are performed. READ MORE
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2. Advancing the understanding of pilot ignition in dual fuel engines : Experimental and conceptual studies
Abstract : The energy transition is looking for new technologies to reduce CO2 emissions. One of the promising options is the dual fuel engine. In this concept, based on a diesel engine, a small pilot diesel injection is used to ignite a second fuel. READ MORE
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3. Alcohol Flexible Dual-Fuel Direct Injection Engine
Abstract : Laws concerning emissions from HD internal combustion engines are becoming increasingly stringent in terms of local emissions and emissions concerning global warming such as lowering tailpipe CO2. New engine technologies are needed to satisfy these new requirements and to reduce fossil fuel dependency and increase renewable fuels in the transportation sector. READ MORE
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4. Design and Optimization of In-Cycle Closed-Loop Combustion Control with Multiple Injections
Abstract : With the increasing demand of transportation, biofuels play a fundamental role in the transition to sustainable powertrains. For the increased uncertainty of biofuel combustion properties, advanced combustion control systems have the potential to operate the engine with high flexibility while maintaining a high efficiency and robustness. READ MORE
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5. Experimental Investigations on Natural Gas-Diesel Dual Fuel Combustion
Abstract : Natural gas has been traditionally applied in spark-ignited combustion engines due to similar combustion characteristics for methane gas and gasoline. However, spark ignition requires a low compression ratio to avoid knock problems and therefore, gas engines have lower efficiency than diesel engines. READ MORE