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Erik Nilsson, Sylvain Ménard, Delphine Bard Hagberg and Nikolaos-Georgios Vardaxis
Sound reduction is complex to estimate for acoustical treatments on ventilation ducts through walls. Various acoustical treatments are available for ventilation ducts, including internal lining (absorption along the inner perimeter), external lagging (ex...
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Erik Nilsson, Nikolaos-Georgios Vardaxis, Sylvain Ménard and Delphine Bard Hagberg
Ventilation ducts can have a negative effect on the sound reduction index between two rooms if they pass through the dividing structure without treatments. The overall sound reduction of a ventilation duct is dependent on several factors including the tr...
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Eirini Katsidoniotaki, Erik Nilsson, Anna Rutgersson, Jens Engström and Malin Göteman
This work evaluates the survivability of a point-absorbing wave energy converter at sea states along and inside the 50-year environmental contour for a selected-site in North Sea, by utilizing CFD simulations. Focused wave groups based on NewWave theory ...
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Linus Wrang, Eirini Katsidoniotaki, Erik Nilsson, Anna Rutgersson, Jesper Rydén and Malin Göteman
At the stage of design load analysis for offshore installations such as wave energy systems, a critical step is the determination of environmental cases to be evaluated for the definition of the characteristic design load. A commonly used methodology for...
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Jan Moestedt, Sören Nilsson Påledal, Anna Schnürer and Erik Nordell
With the increasing demand for renewable energy and sustainable waste treatment, biogas production is expanding. Approximately four billion litres of bio-ethanol are produced annually for vehicle fuel in Europe, resulting in the production of large amoun...
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