Search for dissertations about: "diesel sprays"

Showing result 1 - 5 of 44 swedish dissertations containing the words diesel sprays.

2. 1. Diesel sprays

   Author : Jan Gåsste; KTH; []
   Keywords : ;

   Abstract : .... READ MORE

4. 2. Experimental Studies of Primary Break-up of Diesel Engine Fuel Injector Sprays

   Author : Zachary Falgout; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Water sprays; Sprays; Turbulence; Transparent injectors; Diesel engines; Cavitation; Primary break-up; Orifice flow; Multiphase flows; Transcritical fluids;

   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

5. 3. Spray-Wall Interaction of Diesel Sprays

   Author : Alf Magnusson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wall impingement; Diesel sprays; Optical measurements; Model fuel;

   Abstract : A promising combustion concept that aims at reducing emissions from DI Diesel engines is HCCI (Homogeneous Charge Compression Ignition). To achieve a combustible air/fuel mixture in such an engine one possible strategy is early fuel injection during the compression stroke, even though the in-cylinder conditions are different from those in conventional DI diesel engines. READ MORE

6. 4. Lagrangian CFD Modeling of Impinging Diesel Sprays for DI HCCI

   Author : Per Strålin; Hans-Erik Ångström; Christian Kreuger; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HCCI; Diesel; early direct-injection; impinging nozzle; CFD; Lagrangian modeling; collision models; O’Rourke; Engineering mechanics; Teknisk mekanik;

   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

7. 5. Studies on Diesel sprays under non-reacting and reacting conditions

   Author : Chengjun Du; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; diffusion flame; OH radical; ethanol; spray vaporization; soot formation; cavitation; turbulent; OH* chemiluminescence; laser extinction; LAS; Diesel sprays;

   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