Sökning: "whole-field"

Visar resultat 1 - 5 av 14 avhandlingar innehållade ordet whole-field.

  1. 1. Visualization of Air Flow, Temperature and Concentration Indoors : Whole-field measuring methods and CFD

    Författare :Mathias Cehlin; Mats Sandberg; Alfred Moser; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Environmental engineering; Miljöteknik; Whole-field;

    Sammanfattning : The thermal indoor climate is a complicated combination of a number of physical variables, all of which strongly affect people’s well-being. The indoor climate not only heavily affects people’s health and life quality, but also their productivity and ability to work efficiently. LÄS MER

  3. 2. Energy Efficiency Improvements in Household Refrigeration Cooling Systems

    Författare :Erik Björk; Björn Palm; Claudio Melo; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Household refrigerator; Domestic refrigerator; Free convection; Plate evaporator; Heat transfer; Flow boiling; Isobutane; R600a; Pressure drop; Two-phase; Cooling system; Charge inventory; Cyclic losses; Thermography;

    Sammanfattning : This thesis is based on eight articles all related to the characteristics of the cooling system and plate evaporator of a household refrigerator. Through these articles, knowledge is provided that can be used to increase the operational efficiency in household refrigeration. LÄS MER

  4. 3. Shape measurements using temporal phase unwrapping

    Författare :Lars Kinell; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Experimental Mechanics; Experimentell mekanik;

    Sammanfattning : This licentiate thesis is devoted to shape measurements using two different optical methods. The first one is a classical triangulation method, which uses projected fringes. The second one is a new interferometric method, which uses wavelength scanning. Both are whole field measuring methods. LÄS MER

  5. 4. Optical methods for the study of transparent media

    Författare :Eva-Lena Johansson; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Experimental Mechanics; Experimentell mekanik;

    Sammanfattning : In the fields of combustion and fluid mechanics, temperature-, density- and velocity fields are of interest to measure. Optical methods may be used to study transparent media, even transient events. Flames, gases and liquids are examples on transparent media, often called phase objects. LÄS MER

  7. 5. A pulsed TV holography system for the study of transients in experimental mechanics

    Författare :Per Gren; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Experimental Mechanics; Experimentell mekanik;

    Sammanfattning : An all-electronic system for pulsed holographic interferometry called pulsed TV holography is developed. This is a whole-field non-contacting optical measurement method suitable for studies of transient events like wave propagation in solids and fluids. LÄS MER