S
Svein Magne Hellesø
Researcher at SINTEF
Publications - 16
Citations - 110
Svein Magne Hellesø is an academic researcher from SINTEF. The author has contributed to research in topics: Humidity & Drop (liquid). The author has an hindex of 6, co-authored 14 publications receiving 85 citations.
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Journal ArticleDOI
Experimental study of electrocoalescence of water drops in crude oil using near-infrared camera
TL;DR: In this article, the influence of an applied electric field on the coalescence of a water droplet with a much bigger water drop, both drops being immersed in a crude oil was investigated.
Journal ArticleDOI
Influence of surfactants on the electrohydrodynamic stretching of water drops in oil
Åsmund Ervik,Åsmund Ervik,Torstein Eidsnes Penne,Svein Magne Hellesø,Svend Tollak Munkejord,Bernhard Müller +5 more
TL;DR: In this article, the electrohydrodynamic stretching of a submillimetre-sized salt water drop, immersed in oil with added non-ionic surfactant, and subjected to a suddenly applied electric field of magnitude approaching 1.5 kV/mm was studied.
Journal ArticleDOI
Calculation of water ingress in a HV subsea XLPE cable with a layered water barrier sheath system
TL;DR: In this article, a finite element method was used to calculate the water diffusion and sorption data in a typical cable cross section and the authors showed that a sheath system with an outer layer of low water permeability and an inner layer of a material with a high water absorption capacity is shown to give a significant delay of the water ingress into the electrical insulation.
Proceedings ArticleDOI
Experimental and computational studies of water drops falling through model oil with surfactant and subjected to an electric field
TL;DR: In this paper, the authors considered a wellcharacterized water-oil system where controlled amounts of a surface active agent (Span 80) have been added to the oil, such that the interface behaviour can also be well-characterized.
Journal ArticleDOI
Fabrication of a Scaled MgB2 Racetrack Demonstrator Pole for a 10-MW Direct-Drive Wind Turbine Generator
Niklas Magnusson,Jan Christian Eliassen,Asger Bech Abrahamsen,Svein Magne Hellesø,Magne Runde,Arne Nysveen,Lars-Erik Moslatt,Jarle Bjerkli,Patrick King +8 more
TL;DR: In this paper, the authors describe the steps used to wind a racetrack coil with a length of 1m and a width of 0.5m out of 4.5km of MgB2 superconducting tape.