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Øivind Wilhelmsen

Senior Research Scientist

Øivind Wilhelmsen

Senior Research Scientist

Øivind Wilhelmsen
Phone: 971 52 239
Email:
Department: Gas Technology
Office: Trondheim

Publications and responsibilities

Publication
https://www.sintef.no/en/publications/publication/?pubid=1844338

For liquid hydrogen (LH2) to become an energy carrier in energy commodity markets at scales comparable to for instance LNG, liquefier capacities must be scaled up several orders of magnitude. While state-of-the-art liquefiers can provide specific power requirements down to 10 kWh/kg, a long-term...

Year 2020
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/?pubid=1790053

In this work, we apply the rate-based model of Taylor and Krishna to describe the separation of air in a low-pressure, packed distillation column. By use of numerical optimization, we identify the temperature profile for heat exchange with the column and its surroundings that minimizes the total...

Authors Diego Kingston Øivind Wilhelmsen Signe Kjelstrup
Year 2020
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/?pubid=1823967

Cubic equations of state have thus far yielded poor predictions of the thermodynamic properties of quantum fluids such as hydrogen, helium and deuterium at low temperatures. Furthermore, the shape of the optimal α functions of helium and hydrogen have been shown to not decay monotonically as for...

Authors Ailo Aasen Morten Hammer Silvia Lasala Jean-Noël Jaubert Øivind Wilhelmsen
Year 2020
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/?pubid=1822371

A theory for the entropy production in a shock wave was developed using Gibbs’ excess properties in the framework of non-equilibrium thermodynamics (NET) of surfaces. The theory was used to analyze numerical results from non-equilibrium molecular dynamics simulations. The Gibbs equation for surface...

Authors Bjørn Hafskjold Dick Bedeaux Signe Kjelstrup Øivind Wilhelmsen
Year 2020
Type Academic article