Search for dissertations about: "orifice"
Showing result 6 - 10 of 53 swedish dissertations containing the word orifice.
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6. CFD of Duct Acoustics for Turbocharger Applications
Abstract : The search for quieter internal combustion engines drives the quest for a better understanding of the acoustic properties of engine duct components. In this work the main focus is the turbocharger compressor and a discussion of turbocharger acoustics and earlier work within the area is presented, giving an insight into its sound generating mechanisms and the damping effect it has on pressure pulses, i. READ MORE
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7. Experimental Studies of Primary Break-up of Diesel Engine Fuel Injector Sprays
Abstract : This thesis will focus on experimental studies of primary breakup of pressure-atomized sprays. The industrial application that this thesis will address is fuel sprays in modern Diesel engines, and so the focus will be sprays emitting into relatively slow-moving, high pressure, high-temperature gases. READ MORE
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8. Injection Strategies for Heavy Duty DI Diesel Engines
Abstract : Diesel engines enjoy widespread popularity in transportation and industrial systems. The reasons for this popularity are their simplicity, relatively low capital costs, durability and high fuel efficiency. READ MORE
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9. Small Orifices - Diesel Combustion and Spray Investigations
Abstract : Future demands on diesel engines, such as the need to meet stricter emission legislation, improve performance and lower fuel consumption, for lowering transportation cost and carbon dioxide emissions, forces the development of engines to take a major step in the near time. During the years of engine development, all components have been optimised in small steps at a time, but larger steps must now be taken to meet requirements of the future. READ MORE
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10. Modelling of Multicomponent Fuel Sprays
Abstract : The use of fuel blends (conventional fuels blended with renewable ones) has gained importance in the automotive industry as an option to reduce emissions and dependence on fossil fuels. In order to make the fuel blends commercially viable, computational fluid dynamics (CFD) is used to complement the experiments (done on engines or spray chambers) by providing fundamental insight into spray formation. READ MORE