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Using machine learning-based variable selection to identify hydrate related components from FT-ICR MS spectra
(Peer reviewed; Journal article, 2022)The blockages of pipelines caused by agglomeration of gas hydrates is a major flow assurance issue in the oil and gas industry. Some crude oils form gas hydrates that remain as transportable particles in a slurry. It is ... -
The Utilization of Bauxite Residue with a Calcite-Rich Bauxite Ore in the Pedersen Process for Iron and Alumina Extraction
(Peer reviewed; Journal article, 2021)Metallurgical grade alumina is produced worldwide through the well-known Bayer process, which unavoidably generates bauxite residue (BR, also known as red mud) in almost equal amounts to alumina. This study aims the ... -
Utilization of dual - PSA technology for natural gas upgrading and integrated CO2 capture
(Peer reviewed; Journal article, 2012)In this study, we have considered Pressure Swing Adsorption (PSA) technology natural gas purification and integrated CO2 capture. We present the utilization of Dual-PSA technology for obtaining pipeline-quality methane and ... -
Utilization of waste heat for pre-heating of anodes
(The Minerals, Metals & Materials Series;2367-1181, Peer reviewed; Journal article, 2020)Carbon anodes are replaced on a regular basis in Hall–Héroult cells as they are consumed by electrochemical reactions. Upon insertion of new anodes, bath will freeze locally as a result of low bath superheat and comparatively ... -
Vacancy diffusion in palladium hydrides
(Peer reviewed; Journal article, 2021)The self-diffusion coefficients of palladium in PdHx (x = 0, 0.25, 0.5, 0.75, 1) were studied using density functional theory to obtain the required thermodynamic and kinetic parameters. The enthalpy of migration decreased ... -
Vacuum swing adsorption process for post-combustion carbon capture with 3D printed sorbents: Quantifying the improvement in productivity and specific energy over a packed bed system through process simulation and optimization
(Peer reviewed; Journal article, 2022)This fully computational work is dedicated to the simulation and optimization of a 6-step vacuum swing adsorption (VSA) process to study the performance of a 3D printed silica sorbent grafted with amino silane. The performance ... -
Vale crude oil - properties and behaviour at sea
(SINTEF Rapport;A25949, Research report, 2014) -
Valence charge distribution in homogenous silicon-aluminium thin-films
(Peer reviewed; Journal article, 2018)Homogenous aSi1−xAlxHy alloyed thin films, made by magnetron sputtering, has been found to exhibit tunable band gap and dielectric constant depending on their composition. The optical properties of alloys are largely defined ... -
Validation of a CFD model for the evaluation of urban microclimate at high latitudes: A case study in Trondheim, Norway
(Peer reviewed; Journal article, 2021)The urban microclimate is a rapidly evolving field of research gaining increasing interest from public authorities and researchers. However, studies at high-latitude cities are scarce and researchers primarily focus on ... -
Validation of decomposition models for solar irradiance at high latitudes: A preliminary study
(Peer reviewed; Journal article, 2023)The accurate estimation of buildings' solar potential contributes to boost the exploitation of solar energy at high latitudes. The decomposition of global irradiation into the direct and diffuse fractions is a fundamental ... -
Validation of Online Monitoring of PFC by QCL with FTIR Spectroscopy
(The Minerals, Metals & Materials Series;2367-1181, Peer reviewed; Journal article, 2018)Monitoring of perfluorocarbon (PFC) evolution from aluminium smelting is gaining attention, not only because of their high greenhouse gas potentials but also due to process optimization purposes. Conventionally, PFC ... -
Validation of QCL CF4 Gas Analyzer for Sensitivity and Selectivity
(The Minerals, Metals & Materials Series;2367-1181, Peer reviewed; Journal article, 2020)Quantum cascade lasers (QCL) has open the mid-infrared (mid-IR) spectral range for laser gas monitors. For perfluorocarbon gases (PFCs) such as CF4, continuous emission monitors are now commercially available. Since these ... -
Vapor–liquid equilibria data for 2-piperidineethanol and 1-(2-hydroxyethyl)pyrrolidine in aqueous solutions and a UNIQUAC model representation
(Peer reviewed; Journal article, 2022)This work reports equilibrium data for two amines, 2-piperidineethanol (2-PPE) and 1-(2-hydroxyethyl)pyrrolidine (1-(2HE)PRLD), and their aqueous solutions. The pressure, temperature, and composition data are used to ... -
Variability in the formation and framework polymorphism of metal-organic frameworks based on yttrium(III) and the bifunctional organic linker 2,5-dihydroxyterephthalic acid
(Peer reviewed; Journal article, 2020)Depending on the solvothermal reaction conditions, we obtained three different metal‐organic frameworks with yttrium(III) as metal component and 2,5‐dihdyroxyterepthalic acid (H4dhtp) as bifunctional organic linker: ... -
Vehicle Routing with Space- and Time-Correlated Stochastic Travel Times: Evaluating the Objective Function
(Peer reviewed; Journal article, 2019)We study how to model and handle correlated travel times in two-stage stochastic vehicle-routing problems. We allow these travel times to be correlated in time and space; that is, the travel time on one link in one period ... -
Velocity dispersion in rocks: A laboratory technique for direct measurement of P-wave modulus at seismic frequencies
(Peer reviewed; Journal article, 2019)Fluid saturated rocks exhibit a dependence of acoustic velocities on frequency, which is called velocity dispersion. For some rocks, e.g., shales, velocity dispersion is rather strong and has to be taken into account when ... -
Velocity profiles in a 2D model of the left ventricular outflow tract, pathological case study using PIV and CFD modeling
(SINTEF proceedings;2387-4295, Chapter; Peer reviewed, 2017)In the current study, we present an experimental (in vitro) 2D flow model for studying blood flow in the human left ventricular outflow tract (LVOT) and the first part of the aorta using particle image velocimetry (PIV) ... -
Verification of filtered two fluid models for reactive gas‐solid flows
(SINTEF Proceedings;2, Chapter; Peer reviewed, 2017)CFD simulations of fluidized bed reactors are generally limited to the laboratory scale because of the fine grid sizes that are required to resolve complex particle clustering phenomena. The filtered Two Fluid Model (fTFM) ... -
Verification of heat and mass transfer closures in industrial scale packed bed reactor simulations
(Journal article; Peer reviewed, 2018)Particle-resolved direct numerical simulation (PR-DNS) is known to provide an accurate detailed insight into the local flow phenomena in static particle arrays. Most PR-DNS studies in literature do not account for reactions ... -
Vertical GaN nanocolumns grown on graphene intermediated with a thin AlN buffer layer
(Peer reviewed; Journal article, 2018)We report on the self-assembled growth of high-density and vertically-oriented n-doped GaN nanocolumns on graphene by radio-frequency plasma-assisted molecular beam epitaxy. Graphene was transferred to silica glass, which ...