Search for dissertations about: "spray lubrication"

Found 4 swedish dissertations containing the words spray lubrication.

  2. 1. An experimental investigation of spur gear efficiency and temperature : A comparison between ground and superfinished surfaces

    Author : Martin Andersson; Ulf Olofsson; Bengt-Göran Rosén; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; gears; ground; superfinished; efficiency; temperature; running-in; dip lubrication; spray lubrication; Machine Design; Maskinkonstruktion;

    Abstract : This thesis focuses on reliability when testing gear efficiency and on how gear mesh efficiency can be increased without detrimental effects on the gears. Test equipment commonly used in gear research was analysed to identify important parameters for gear efficiency testing. READ MORE

  4. 2. In-Nozzle Flow, Spray and Combustion Investigations of Two-Stroke Marine Diesel Engine Fuel Injectors

    Author : Reto Balz; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; spray morphology; marine Diesel engine; fuel injection; in-nozzle flow; combustion; cavitation;

    Abstract : This thesis focuses on the experimental studies of the cavitating in-nozzle flow of large two-stroke marine Diesel engine fuel injector nozzles and how it affects the spray morphology and combustion behaviour.  To further increase the efficiency of large two-stroke marine Diesel engines, a better understanding of the fuel spray atomization process is necessary. READ MORE

  5. 3. In-Nozzle Flow and Primary Breakup Investigations of Marine Two-Stroke Diesel Engine Injectors

    Author : Reto Balz; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; in-nozzle flow; fuel injection; primary breakup; cavitation;

    Abstract : This thesis will focus on the experimental studies of in-nozzle flow and primary breakup of pressure-atomized fuel sprays as used in large marine two-stroke Diesel engines. To further increase the efficiency of large marine two-stroke Diesel engines, a better understanding of the fuel spray atomization process is necessary. READ MORE

  6. 4. An Experimental Study on Micro-Hydrodynamics of Evaporating/Boiling Liquid Film

    Author : Shengjie Gong; Ma Weimin; Horst-Michael Prasser; KTH; []
    Keywords : liquid film; critical thickness; boiling; critical heat flux; rupture; dry spot; confocal optical sensor; SRA - Energy; SRA - Energi;

    Abstract : Study of liquid film dynamics is of significant importance to the understanding and control of various industrial processes that involve spray cooling (condensation), heating (boiling), coating, cleaning and lubrication. For instance, the critical heat flux (CHF) of boiling heat transfer is one of the key parameters ensuring the efficiency and safety of nuclear power plants under both operational and accident conditions, which occurs as the liquid layers (microlayer and macrolayer) near the heater wall lose their integrity. READ MORE