Browsing SINTEF Open by Author "Andersson, Stefan"

Now showing items 1-10 of 10

    • Boron Removal from Silicon Melt by gas Blowing Technique 

      Hoseinpur Kermani, Arman; Andersson, Stefan; Müller, Michael; Tang, Kai; Safarian, Jafar (Peer reviewed; Journal article, 2022)
      Due to the detrimental effects of boron (B) on the efficiency of silicon (Si) photovoltaic cells, complete boron removal from Si is necessary to produce solar grade Si (SoG–Si, with a maximum limit of 0.1 ppmw boron). Gas ...

    • Cleaning of polycyclic aromatic hydrocarbons (PAH) obtained from ferroalloys plant 

      Panjwani, Balram; Andersson, Stefan; Wittgens, Bernd; Olsen, Jan Erik (Chapter, 2017)
      Polycyclic Aromatic hydrocarbons (PAHs) are organic compounds consisting of only hydrogen and aromatic carbon rings. PAHs are neutral, non-polar molecules that are produced due to incomplete combustion of organic matter. ...

    • Cleaning of polycyclic aromatic hydrocarbons (PAH) obtained from ferroalloys plant 

      Panjwani, Balram; Andersson, Stefan; Wittgens, Bernd; Olsen, Jan Erik (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      Polycyclic Aromatic hydrocarbons (PAHs) are organic compounds consisting of only hydrogen and aromatic carbon rings. PAHs are neutral, non-polar molecules that are produced due to incomplete combustion of organic matter. ...

    • Evaporation and diffusion of Mn in inert systems 

      Olsen, Håkon Aleksander Hartvedt; Andersson, Stefan; Tranell, Gabriella (The Minerals, Metals & Materials Series;2367-1181, Peer reviewed; Journal article, 2018)
      This research is aimed to improve our knowledge on the dust formation and clustering in the ferroalloy industry. Specifically, this paper focuses on the evaporation of manganese metal, and how different parameters influence ...

    • Mechanisms and Thermochemistry of Reactions of SiO and Si2O2 with OH and H2O 

      Andersson, Stefan (Peer reviewed; Journal article, 2023)
      This paper reports on computational studies of gas-phase reactions of SiO and Si2O2. The oxidation of SiO can initiate efficient formation of silica or silicate dust particles in a wide range of environments. Both OH ...

    • Mechanisms of SiO oxidation: Implications for dust formation 

      Andersson, Stefan; Gobrecht, David; Valero, Rosendo (Peer reviewed; Journal article, 2023)
      Reactions of SiO molecules have been postulated to initiate efficient formation of silicate dust particles in outflows around dying (AGB) stars. Both OH radicals and H2O molecules can be present in these environments and ...

    • Oxidation-Enhanced Evaporation in High-Carbon Ferromanganese 

      Myklebust, Håkon A Hartvedt Olsen; Andersson, Stefan; Tranell, Gabriella (Peer reviewed; Journal article, 2021)
      Lifetime and reliability in realistic operating conditions are important parameters for the application of thin-film piezoelectric microelectromechanical systems (piezoMEMS) based on lead zirconate titanate (PZT). Humidity ...

    • Selective Vacuum Evaporation by the Control of the Chemistry of Gas Phase in Vacuum Refining of Si 

      Hoseinpur Kermani, Arman; Andersson, Stefan; Tang, Kai; Safarian, Jafar (Peer reviewed; Journal article, 2021)
      ( Engelsk ) The evaporation of P from liquid Si under vacuum and reduced pressures of H2, He, and Ar was studied to evaluate the feasibility of effective P removal with insignificant Si loss. It was found that the introduction ...

    • Surface and bulk properties of chromium oxide: Implications for reduction by methane 

      Skjelbred, Kristin Marie; Åstrand, Per-Olof; Støvneng, Jon Andreas; Andersson, Stefan (Peer reviewed; Journal article, 2015)
      A computational method for Cr2O3 and Cr3C2 has been established based on a systematic investigation of functionals, basis sets and corrections for dispersion, self-interaction and relativistic effects. The suggested method ...

    • Towards rigorous multiscale flow models of nanoparticle reactivity in chemical looping applications 

      Andersson, Stefan; Radl, Stefan; Svenum, Ingeborg-Helene; Shevlin, Stephen; Amini, Shahriar; Guo, Xiao (Journal article; Peer reviewed, 2019)
      A multiscale modeling framework is described and applied to the reactivity of iron oxide nanoparticles in a chemical looping reforming (CLR) reactor. At the atomic scale/nanoscale, we have performed kinetic Monte Carlo ...