Sökning: "Angled"

Visar resultat 1 - 5 av 18 avhandlingar innehållade ordet Angled.

  1. 1. Performance of Compact Heat Exchanger in Non-Perpendicular Cooling Airflows

    Författare :Lisa Henriksson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Simulations; Angled; Experiments; Inclined; Heat transfer; Pressure drop; CFD; Heat exchanger;

    Sammanfattning : During recent years the main focus in the vehicle industry has been on cutting the fuel consumption and emissions as well as improving the vehicle performance. To be able to meet these demands additional systems are being introduced into the vehicle. LÄS MER

  3. 2. Physical load in computerized office work : with special reference to work tasks and equipment

    Författare :Elisabeth Fernström; KTH; []
    Nyckelord :;

    Sammanfattning : The main purpose of the studies presented in this thesis wasto measure and quantify shoulder load in computerised officework. Shoulder load was studied during a whole working day andin different work tasks. Shoulder and arm load during keyboardwork and with different modes of physical computer interactionwas also studied. LÄS MER

  4. 3. A study of mold flux entrapment and gas entrainment in an ingot casting process

    Författare :Jun Yin; Mikael Ersson; Pär Jönsson; Yogeshwar Sahai; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mold flux entrapments; CFD; Gas entrainment; Ingot casting process; Uphill teeming process; Side teeming process; Numerical simulation; Non-metallic inclusions; Metallurgical process science; Metallurgisk processvetenskap; Materials Science and Engineering; Teknisk materialvetenskap;

    Sammanfattning : The focus of this work is to study the gas entrainment and mold flux entrapments during the ingot filling process based on physical and numerical modelling.The formation of the free surface was investigated in the uphill teeming method, which illustrates a dynamic change at a quasi-steady state. LÄS MER

  5. 4. Measurement and evaluation of near-field spray kinematics for nozzles with asymmetrical inlet geometries

    Författare :Mohammad Nikouei; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Nozzle Geometry; Spray Dynamics; Spray Velocity; Diesel Spray; Ballistic Imaging;

    Sammanfattning : In diesel engines, fuel injection parameters have a commanding effect on mixing and combustion quality. This research aims to enhance the fundamental knowledge of fuel sprays and their primary break-up. In addition, this research provides statistical data to validate simulation models and improve the prediction accuracy in mixing and combustion. LÄS MER

  7. 5. Design and application of experimental methods for steel sheet shearing

    Författare :Emil Gustafsson; Mats Oldenburg; Per Gradin; Lars Karlsson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics; Simulering av klippning i höghållfast stål;

    Sammanfattning : Shearing is the process where sheet metal is mechanically cut between two tools. Various shearing technologies are commonly used in the sheet metal industry, for example, in cut to length lines, slitting lines, end cropping etc. LÄS MER