Sökning: "vapour pressure"

Visar resultat 1 - 5 av 83 avhandlingar innehållade orden vapour pressure.

  1. 1. Determination and evaluation of pressure-volume-temperature relationships of some halogenated hydrocarbons and their binary mixtures : an experimental and theoretical study

    Författare :Krister H. U. Ström; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; liquid molar volume; vapour pressure; vapour-liquid-equilibria; equations of state; corresponding state principle; thermodynamic properties; refrigerants; refrigerant mixtures;

    Sammanfattning : .... LÄS MER

  3. 2. Microcalorimetric methods for direct measurement of solubility and solvent activity

    Författare :Dennis Berling; Biokemi och Strukturbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; enthalpy of solution; solubility; solvent fugacity; solvent activity; Isothermal calorimetry; vapour pressure; Chemistry; Kemi;

    Sammanfattning : New calorimetric methods for direct measurement of solubility and solvent activity are presented. The classical role of calorimetry for measurements of enthalpic parameters is abandoned and the technique is instead used for assessing thermodynamic quantities related to the chemical potential of a substance in a solution. LÄS MER

  4. 3. Lipase-Catalysed Lipid Modifications in Supercritical Carbon Dioxide

    Författare :Helga Gunnlaugsdottir; Livsmedelsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; immobilisation support; enzymes; pressure; phase behaviour; flow rate; process parameters; supercritical carbon dioxide; Lipase; lipids; Food and drink technology; Livsmedelsteknik;

    Sammanfattning : The production of ethyl esters (EE) from ethanol and cod-liver oil by an immobilised lipase in supercritical carbon dioxide (SCCO2) is described. This reaction results in a complex mixture of lipid components consisting of triglycerides, diglycerides, monoglycerides and ethyl esters. LÄS MER

  5. 4. Flow Boiling Heat Transfer and Pressure Drop. Experiments and Model Development for Complex Geometries

    Författare :Sven Wellsandt; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; pressure drop; zeotropic mixtures; heat transfer; herringbone microfin; dimple plate; modelling; evaporation; flow boiling; experiments;

    Sammanfattning : Two very different evaporator geometries, a dimple plate and a herringbone microfin tube, have been studied. Heat transfer and pressure drop for both pure refrigerants and refrigerant mixtures have been determined experimentally. LÄS MER

  7. 5. On the Oxidation Behaviour of MoSi2 and (Mo,W)Si2 - The Influence of Oxygen and Water Vapour

    Författare :Kristina Hansson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; temperature dependence; oxidation; Mo2 OH 2; MoSi2; Mo; W Si2; water vapour;

    Sammanfattning : This thesis deals with the oxidation of a clay-bonded MoSi2 composite (KanthalSuper 1800) and a clay-bonded (Mo,W)Si2-based composite (KanthalSuper 1900) which are used as heating elements at temperatures of up to approximately 1800°C and 1850°C, respectively, in industrial furnaces. These ceramics are ideal for use at these temperatures due to their excellent oxidation behaviour at high temperatures, which is ascribed to the formation of a protective silica scale. LÄS MER