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    • Mn promoted Co catalysts for Fischer-Tropsch production of light olefins – An experimental and theoretical study 

      Pedersen, Eirik Østbye; Svenum, Ingeborg-Helene; Blekkan, Edd Anders (Peer reviewed; Journal article, 2018)
      Three different CoMn/gamma-Al2O3 catalysts were prepared by the incipient wetness impregnation route and compared to a Co/gamma-Al2O3 catalyst. The effect of co-impregnation vs. sequential impregnation as well as the order ...

    • Modeling Contact Resistance and Water Transport within a Cathode Liquid-Fed Proton Exchange Membrane Electrolyzer 

      Gerhardt, Michael; Østenstad, Jenny S.; Oyarce Barnett, Alejandro Ricardo; Thomassen, Magnus (Peer reviewed; Journal article, 2023)
      Conventional proton-exchange membrane (PEM) water electrolyzers use thicker membranes (>175 μm) than their PEM fuel cell counterparts (<25 μm), which reduces hydrogen crossover but also reduces electrolyzer efficiency due ...

    • Modeling Differential Enthalpy of Absorption of CO2 with Piperazine as a Function of Temperature 

      Gupta, Mayuri; Silva, Eirik Falck da; Svendsen, Hallvard Fjøsne (Peer reviewed; Journal article, 2022)
      Temperature-dependent correlations for equilibrium constants (ln K) and heat of absorption (ΔHabs) of different reactions (i.e., deprotonation, double deprotonation, carbamate formation, protonated carbamate formation, ...

    • Modeling Fischer–Tropsch kinetics and product distribution over a cobalt catalyst 

      Pandey, Umesh; Runningen, Anders; Gavrilovic, Ljubisa; Jørgensen, Erik Andreas; Putta, Koteswara Rao; Rout, Kumar Ranjan; Rytter, Erling; Blekkan, Edd Anders; Hillestad, Magne (Peer reviewed; Journal article, 2021)
      A detailed kinetic model describing the consumption of key components and productdistribution in the Fischer–Tropsch synthesis (FTS) over a 20%Co/0.5Re γ-Al2O3commercial catalyst is developed. The developed model incorporates ...

    • Modeling hydrogen transport and hydrogen-induced embrittlement 

      Maincon, Philippe Emmanuel (SINTEF Rapport;, Research report, 2020)
      This document provides the theory manual and user manual for two finite elements for the modeling of hydrogen-induced embrittlement of metallic materials. The cohesive zone element (CZE) allows to simulate the creation of ...

    • Modeling the Growth of Clostridium beijerinckii NCIMB 8052 on Lignocellulosic Sugars 

      Birgen, Cansu; Markussen, Sidsel; Wentzel, Alexander; Preisig, Heinz A.; Wittgens, Bernd (Peer reviewed; Journal article, 2018)
      To our knowledge, this is the first growth model of Clostridium beijerinckii NCIMB 8052 on glucose and xylose as representative lignocellulosic sugars, which considers the synergistic effects of sugars on the growth rate. ...

    • Modeling Viscosity of High Titania Slag 

      Hu, Kai; Tang, Kai; Lv, Xuewei; Safarian, Jafar; Yan, Zhiming; Song, Bing (Peer reviewed; Journal article, 2020)
      TiO2-FeO-Ti2O3 slag system is the dominant system for industrial high-titania slag production. In the present work, viscosities of TiO2-FeO and TiO2-FeO-Ti2O3 systems were experimentally determined using the concentric ...

    • Modeling Water Droplet Freezing and Collision with a Solid Surface 

      Shayunusov, Doston; Eskin, Dmitry; Balakin, Boris; Chugunov, Svyatoslav; Johansen, Stein Tore; Akhatov, Iskander (Peer reviewed; Journal article, 2021)
      Water droplets released from the sea surface represent one of the major causes of ice accretion on marine vessels. A one-dimensional model of the freezing of a spherical water droplet moving in cold air was developed. The ...

    • Modelling and experimental validation of microstructure evolution during the cooling stage of homogenization heat treatment of Al-Mg-Si alloys 

      Du, Qiang; Jia, Lina; Tang, Kai; Holmedal, Bjørn (Journal article, 2018)
      A CALPHAD-coupled multi-component multi-phase Kampmann–Wagner Numerical modelling framework has been adapted and coupled with a homogenization model to predict the competitive nucleation and growth of multi-sized ...

    • Modelling capacity fade in silicon-graphite composite electrodes for lithium-ion batteries 

      Dhillon, Shweta; Hernández, Guiomar; Wagner, Nils Peter; Svensson, Ann Mari; Brandell, Daniel (Peer reviewed; Journal article, 2021)
      Silicon-based composite electrodes in lithium ion batteries attract increasing attention because of their high theoretical capacity. Here, numerical simulations are used to better understand the interplay between electrochemical ...

    • Modelling grain growth with the generalized Kampmann-Wagner numerical model 

      Du, Qiang; Chen, Miaomiao; Xie, Jianxin (Peer reviewed; Journal article, 2021)
      The multi-phase Kampmann-Wagner Numerical (KWN) model, which had been successfully applied for modeling particle precipitation (i.e. Ostwald ripening), is extended toward grain growth modeling. The extensions consist of ...

    • Modelling of adsorption technologies for controlling indoor air quality 

      Grande, Carlos Adolfo (Peer reviewed; Journal article, 2022)
      Technologies for control of indoor air quality are very important to ensure that health and comfort conditions are attained in closed environments. The indoor air quality market is fertile ground for adsorption technologies, ...

    • Modelling of dispersed oil/water flow in a near-horizontal pipe 

      Kjølaas, Jørn; Schümann, Heiner; Gonzalez Rengifo, Diana Carolina; Johansen, Stein Tore (Peer reviewed; Journal article, 2022)
      A gravity-diffusion model was implemented for predicting water concentration profiles in dispersed oil-continuous oil–water flows. In this model, the measured droplet size distributions were used instead of a droplet size ...

    • Modelling of environmental ageing of polymers and polymer composites—durability prediction methods 

      Starkova, Olesja; Gagani, Abedin; Karl, Christian; Rocha, Iuri B. C. M.; Burlakovs, Juris; Krauklis, Andrejs (Peer reviewed; Journal article, 2022)
      Polymers and polymer composites are negatively impacted by environmental ageing, reducing their service lifetimes. The uncertainty of the material interaction with the environment compromises their superior strength and ...

    • Modelling of Environmental Ageing of Polymers and Polymer Composites—Modular and Multiscale Methods 

      Krauklis, Andrey; Karl, Christian; Rocha, Iuri B. C. M.; Burlakovs, Juris; Ozola-Davidane, Ruta; Gagani, Abedin; Starkova, Olesja (Peer reviewed; Journal article, 2022)
      Service lifetimes of polymers and polymer composites are impacted by environmental ageing. The validation of new composites and their environmental durability involves costly testing programs, thus calling for more affordable ...

    • Modelling of fatigue damage in granitic rock by piezoelectric effect in quartz phase due to alternating current excitation 

      Saksala, Timo; Ruiz, Arturo Rubio; Kouhia, Reijo; Kane, Pascal-Alexandre Saidou; Hokka, Mikko (Peer reviewed; Journal article, 2023)
      This paper considers numerical modelling of hypothetical fatigue damage in granitic rock by alternating current (AC) excitation of piezoelectric properties of Quartz. For this end, a numerical method consisting of a rock ...

    • Modelling of interaction between turbines and terrain wakes using pragmatic approach 

      Røkenes, Kjersti; Panjwani, Balram; Lund, Berit Floor; Samseth, Jon (SINTEF Proceedings;2, Chapter, 2017)
      Kongsberg Digital (KDI) is currently developing a decision support system for wind farms (Kongsberg EmPower). The objectives of Kongsberg EmPower are to optimize the total power production from a wind farm, forecast the ...

    • Modelling of major phases formation during solidification of Ferro-Silicon-Magnesium 

      Gouttebroze, Sylvain; Marthinsen, Astrid; Kroka, Bente; Götz, Adam; Ott, Emmanuelle (Peer reviewed; Journal article, 2023)
      Ductile cast iron, also known as nodular cast iron, is a graphite-rich cast iron with high impact and fatigue resistance, due to its nodular graphite inclusions. Ductile cast iron is produced by incorporating additives ...

    • Modelling of the Ferrosilicon furnace: effect of boundary conditions and burst 

      Panjwani, Balram; Olsen, Jan Erik; Wittgens, Bernd (SINTEF Proceedings;1, Chapter; Conference object; Peer reviewed, 2015)
      A by-product from the ferrosilicon process is process gas which escapes into the furnace hood were it reacts with air. The process gas mainly consists of CO with some SiO and moisture. Modeling the gas behavior inside the ...

    • Modelling of the wall film in high-rate low liquid loading flows 

      Kjølaas, Jørn; Holm, Henning (International Conference on Multiphase Technology;2019, Chapter; Peer reviewed, 2019)
      In this paper we present a detailed analysis of large scale experimental data from the SINTEF Multiphase Laboratory on high-rate low liquid loading flows. The experimental work [1] was funded by Equinor as part of the ...