Sökning: "gas solubility"

Visar resultat 1 - 5 av 50 avhandlingar innehållade orden gas solubility.

  1. 1. Factors Related to the Formation of Gas Porosity in Grey Cast Iron: Investigation of Core Gas Evolution and Gas Concentrations in Molten Iron

    Författare :Jessica Orlenius; [2008]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; core binders; Gas porosity; hydrogen; grey iron; gas absorption; nitrogen; oxygen; gas evolution rate; green sand; mould filling; gas volume; gas solubility;

    Sammanfattning : Since gas porosity is a major casting problem, it is of greatest importance to increase the knowledge about the foundry process in order to minimise the presence of gas porosity and thereby improving the casting quality. Gas porosity is generally considered to originate from gases precipitated during solidification of iron and from entrained gas picked up by the metal during the mould filling. LÄS MER

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

    Detta är en avhandling från Thermochemistry, Chemistry Center, P.O.Box 124, S-221 00 Lund

    Författare :Dennis Berling; [1998]
    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

  3. 3. Estimating the Air-Water Gas Transfer Velocity during Low Wind Conditions

    Detta är en avhandling från Thermochemistry, Chemistry Center, P.O.Box 124, S-221 00 Lund

    Författare :Sam Fredriksson; Göteborgs universitet.; Gothenburg University.; [2016]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Air.sea gas exchange; Turbulence; Heat flux; Natural convection; Shear; Direct numerical simulations; Gas transfer velocity; IR; Flux-chambers;

    Sammanfattning : The abundances of atmospheric carbon dioxide, CO2, and methane, CH4, are increasing. These increases affect e.g., the global carbon cycle and the climate both regionally and globally. LÄS MER

  4. 4. Microscopic views of drug solubility

    Detta är en avhandling från Stockholm : KTH

    Författare :Laban Bondesson; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Bioengineering; TEKNIKVETENSKAP Bioteknik;

    Sammanfattning : The development of computational models for predicting drug solubility has increased drastically during the last decades. Nevertheless these models still have diffculties to estimate the aqueous solubility as accurate as desired. LÄS MER

  5. 5. Biofiltration of odorous gas emissions

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Anneli Andersson-Chan; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VA-teknik; Urban Water Engineering;

    Sammanfattning : Biofiltration has shown its potential as an interesting treatment alternative for contaminated gas streams. Unlike conventional technologies, such as adsorption, scrubbers, and incineration, biofiltration offers effective pollution control at relatively low capital and operating costs, and without the generation of secondary pollution that may require subsequent treatment. LÄS MER