Browsing SINTEF Energi by Title
Now showing items 1-20 of 1928
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1-D computational model of a motive nozzle for the R744 two-phase ejector
(Chapter; Peer reviewed, 2010) -
145 kV kompakte kraftledninger med belagte liner, BLX og komposittmaterialer i mastekonstruksjonen
(SINTEF Energi. Rapport;, Research report, 1999) -
A 2D FEM Model For Impedance and Loss Calculation of Armored Three-Core Cables With Inclusion of 3D Pitching Effects
(Peer reviewed; Journal article, 2023)A method is introduced for impedance and loss calculation of three-core power cables with steel armoring, based on 2D finite element method (FEM) computations. The pitching effect of the cores and armor wires is taken into ... -
30 GW offshore wind in Norway : time series analysis based on numerical weather model dataset
(SINTEF Energi. Prosjektnotat;, Report, 2023-02-28)This memo investigates impacts of integrating 30 GW offshore wind in Norway -
3D fluid modeling of positive streamer discharges in air with stochastic photoionization
(Peer reviewed; Journal article, 2020)Streamer discharges are thin plasma channels that precede lightning and sparks. They usually evolve in bundles as stochastic tree-like structures and are inherently difficult to model due to their multiscale nature. In ... -
A 3D kinetic Monte Carlo study of streamer discharges in CO2
(Peer reviewed; Journal article, 2024)We theoretically study the inception and propagation of positive and negative streamers in CO2. Our study is done in 3D, using a newly formulated kinetic Monte Carlo discharge model where the electrons are described as ... -
A Bayesian network based approach for integration of condition-based maintenance in strategic offshore wind farm O&M simulation models
(Chapter; Peer reviewed, 2018)In the overall decision problem regarding optimization of operation and maintenance (O&M) for offshore wind farms, there are many approaches for solving parts of the overall decision problem. Simulationbased strategy models ... -
A Bayesian spatial assimilation scheme for snow coverage observations in a gridded snow model
(Journal article; Peer reviewed, 2006) -
A Carbon neutral power system in the Nordic region in 2050 : D3.1 in the NORSTRAT project
(SINTEF Energi; Rapport; TR A7365, Research report, 2015) -
A carbon neutral power system in the Nordic region in 2050 D3.1 in the NORSTRAT project
(SINTEF Energi. Rapport;, Research report, 2014) -
A Case Study on Medium-Term Hydropower Scheduling with Sales of Capacity
(Journal article; Peer reviewed, 2016)This paper conducts a case study on hydropower scheduling considering sales of capacity reserves and impacts of detailed mod-elling. In latter years a growing demand for reserve capacity has been needed to ensure stable ... -
A Comparative Study of Methods for Estimating Virtual Flux at the Point of Common Coupling in Grid-Connected Voltage Source Converters with LCL Filter
(Journal article; Peer reviewed, 2017)Grid synchronization based on virtual flux (VF) estimation allows for control of grid-connected power converter without depending on ac-voltage measurements. This is useful in voltage-sensor-less applications for reducing ... -
A comparison of linear interpolation and spline interpolation for turbine efficiency curves in short-term hydropower scheduling problems
(Journal article; Peer reviewed, 2019)The purpose of short-term hydropower scheduling (STHS) in a competitive electricity market is to maximize the profit in the near future while adapting to the mid-term strategies for system operation. To ensure a realistic ... -
A Comparison of Low Flow Estimates in Ungauged Catchments Using Regional Regression and the HBV-Model
(Journal article; Peer reviewed, 2009) -
A Comparison of Post-combustion Capture Technologies for the NGCC
(Journal article; Peer reviewed, 2017)Four different post-combustion capture technologies are compared for the same NGCC (electric efficiency 58.1% without CO2 capture). The technologies are aqueous amine, polymeric membranes, a low temperature sorbent and ... -
A Comparison of Single- and Multi-parameter Wave Criteria for Accessing Wind Turbines in Strategic Maintenance and Logistics Models for Offshore Wind Farms
(Journal article; Peer reviewed, 2014)Different vessel types for transferring technicians for maintenance and inspection of offshore wind farms are often evaluated and compared by their limiting significant wave height for accessing the wind turbines. The ... -
A comprehensive model for char particle conversion in environments containing O2 and CO2
(Journal article; Peer reviewed, 2015)In this work, conversion of char is studied in a simulation code that includes a simplified heterogeneous adsorption–desorption reaction mechanism for char chemical reactivity and uses GRI-Mech 3.0 as the chemical kinetic ... -
A Concept of performance improvement for R744 two-phase ejector with bypass duct
(Science et technique du froid;2018-3, Chapter; Peer reviewed, 2018) -
A Damping Factor-Based White-Box Transformer Model for Network Studies
(Journal article; Peer reviewed, 2018)Transformer manufacturers make routine use of white-box detailed transformer models for ensuring that the transformer will pass the lightning impulse test. For use in general simulation studies, the model should additionally ... -
A Feasibility Study of a Method for Identification and Modelling of Cybersecurity Risks in the Context of Smart Power Grid
(COMPLEXIS 2019 - Proceedings of the 4th International Conference on Complexity, Future Information Systems and Risk;2019, Chapter; Peer reviewed, 2019)Power grids are undergoing a digital transformation are therefore becoming increasingly complex. As a result of this they are also becoming vulnerable in new ways. With this development come also numerous risks. Cybersecurity ...