Search for dissertations about: "diesel quality"
Showing result 1 - 5 of 45 swedish dissertations containing the words diesel quality.
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1. Lagrangian CFD Modeling of Impinging Diesel Sprays for DI HCCI
Abstract : The homogeneous charge compression ignition (HCCI) concept has been acknowledged as a potential combustion concept for engines, due to low NOx and soot emissions and high efficiency, especially at part-load. Early direct-injection (DI) during the compression stroke is an option when Diesel fuel is used in HCCI. READ MORE
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2. Development of ring-opening catalysts for diesel quality improvement
Abstract : The global oil refining industry with its present shift inproduct distribution towards fuels such as gasoline and dieselwill most likely hold the fort for many years to come. However,times will change and survival will very much depend onprocessing flexibility and being at the frontiers of refiningtechnology, a technology where catalysts play leading roles. READ MORE
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3. Hydrogen Generation for Fuel Cells in Auxiliary Power Systems
Abstract : Heavy-duty trucks are in idle operation during long periods of time, providing the vehicles with electricity via the alternator at standstill. Idling trucks contribute to large amounts of emissions and high fuel consumption as a result of the low efficiency from fuel to electricity. READ MORE
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4. Studies on Diesel sprays under non-reacting and reacting conditions
Abstract : Methods for reducing engine-out emissions are urgently needed to mitigate climate change and air pollution. In diesel engines, the quality of fuel-air mixing and the subsequent combustion process strongly affect fuel efficiency and engine-out emissions. READ MORE
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5. Impact of Fuel Properties on Partially Premixed Combustion
Abstract : Compression ignited engines generally have higher efficiency than spark ignition engines. However, the most common combustion concept in compression ignited engines, conventional diesel combustion, struggles with high levels of particulate matter and NOx emissions. READ MORE