Search for dissertations about: "spray"

Showing result 16 - 20 of 310 swedish dissertations containing the word spray.

  2. 16. Modeling of Spray Formation and Development in OpenFOAM with Application to Diesel and Alcohol Fuels

    Author : Andreas Nygren; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Combustion; Spray Formation; Spray Modeling; VSB2;

    Abstract : Legislation with reagards to fuel emissions are becoming more stringent. This creates a need for improved engine concepts and fuels. This work is part of an ongoin project to create a concept for a direct injection dual fuel engine, which uses alcohol as main fuel and diesel as a pilot. READ MORE

  4. 17. Droplet Breakup in Automotive Spray Painting

    Author : Björn O Andersson; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; atomization; spray painting; computational fluid dynamics; breakup; surface tension;

    Abstract : Paint and surface treatment processes in a car paint shop are to a largeextent automated and performed by robots. Having access to tools thatincorporate the flexibility of robotic path planning with fast and efficientsimulation of the processes is important to reduce the time required forintroduction of new car models, reduce the environmental impact and increasethe quality. READ MORE

  5. 18. Numerical Modeling of Atomization in Spray Systems

    Author : Michele Pütz; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; spray modeling; quadrature-based moment methods; atomization; numerical simulation; Multiphase; population balance equations;

    Abstract : Dispersed multiphase flows refer to dynamic systems comprising two or more phases where at least one phase is in the form of fine particles evolving in and interacting with a surrounding fluid. Spray systems fall into that category. READ MORE

  6. 19. Characterization of Gasoline Spray-Wall Interactions

    Author : Ronny Lindgren; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Phase Doppler Anemometry PDA ; gasoline sprays; wall film; modeling; experiments; Computational Fluid Dynamics CFD ; spray-wall interaction;

    Abstract : Interest in spray-wall interactions has intensified recently because of the development of direct injection spark ignition engines. In this type of engine, impingement of the spray on the piston and cylinder walls leads to increased emissions of hydrocarbons and soot. READ MORE

  7. 20. Plasma spray coatings as catalysts for water splitting : exploring novel materials and strategies

    Author : Xiuyu Wu; Eduardo Gracia-Espino; Juan Carlos Nieves Sanchez; Björn Wickman; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Plasma spray; water splitting; coatings; electrocatalyst; hydrogen evolution reaction; oxygen evolution reaction; Physical Chemistry; fysikalisk kemi;

    Abstract : Today, fossil fuels still play a dominant role in the global energy systems. However, they are depleting quickly and the combustion of them causes many environmental concerns, including global warming, air pollution, ozone layer depletion, and acid rain. READ MORE