Search for dissertations about: "Refrigerator"

Showing result 1 - 5 of 22 swedish dissertations containing the word Refrigerator.

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

    Author : Erik Björk; Björn Palm; Claudio Melo; KTH; []
    Keywords : 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;

    Abstract : 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. READ MORE

  4. 2. Thermoacoustic refrigerators: Time-domain modelling and experimental setup

    Author : Stig Kleiven; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; finite-difference time-domain; refrigerator; thermoacoustics; equivalent source method;

    Abstract : Thermoacoustic refrigerators use acoustic waves to transfer heat. Although their benefits compared with their vapour-compression counterparts are environmental friendliness, robustness and simplicity, they are currently still less efficient than traditional vapour-compression refrigerators. READ MORE

  5. 3. Path planning using probabilistic cell decomposition

    Author : Frank Lingelbach; Bo Wahlberg; Henrik I. Christensen; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signalbehandling; Signalbehandling; Signal processing; Signalbehandling;

    Abstract : The problem of path planning occurs in many areas, such as computational biology, computer animations and computer-aided design. It is of particular importance in the field of robotics. Here, the task is to find a feasible path/trajectory that the robot can follow from a start to a goal configuration. READ MORE

  6. 4. Industrial change towards environmental sustainability : the case of chloroflourocarbons

    Author : Susanne Sweet; Handelshögskolan i Stockholm; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : This thesis aims at providing an insight into one of the most influential ecological change efforts of our time, culminating with the banning of the use of chloroflourocarbons, CFCs, conceded as being linked to one of the most severe threats to our ecosystem, the depletion of the earth's ozone layer. This change effort, extending over a quarter century, is analyzed, drawing on the responses of three unrelated industries directly affected by the ban. READ MORE

  7. 5. Structure-Magnetism Relations in Selected Iron-based Alloys : A New Base for Rare Earth Free Magnetic Materials

    Author : Johan Cedervall; Martin Sahlberg; Gunnar Svensson; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Materials for energy applications are of great importance for a sustainable future society. Among these, stronger, lighter and more efficient magnetic materials will be able to aid mankind in many applications for energy conversion, for example generators for energy production, electric vehicles and magnetic refrigerators. READ MORE