Vilmar Æsøy
Professor, NTNU
Vilmar Æsøy received his M.Sc. degree in mechanical engineering from the Norwegian Institute of Technology (NTH), Norway in 1989. After 2 years in maritime industry designing propulsion machinery systems for high speed passenger vessels, he returned to NTH to start his PhD training and research. His research topic is on LNG combustion in marine engines, where he defended his PhD research in 1996. The PhD research was in close collaboration with Marintek (Sintef Ocean), Wartsila and Bergen engines developing LNG fuel technology. Then from 1997-2002 he held different positions in maritime industry as senior engineer and as R&D manager at Rolls-Royce Deck Machinery. In 2002 he returned to academia as Associate Professor at Aalesund University college in 2002 (now NTNU Ålesund), and since 2015 in a professorship on “green ship machinery systems”
His field of expertise is in propulsion machinery systems, internal combustion engines, alternative fuels and low emission technologies. Through his teaching and research, dynamic modelling and simulation of maritime systems and operations has a strong focus, applied in systems design, verification and training of maritime personnel. He has developed several teaching and training courses with special focus on safety around implementation of novel technologies in maritime industry.
"Stray currents" in Hybrid Marine Power Systems?
Rapid increasing number of complex hybrid power systems in maritime sector seems to also cause new challenges. Damage to mechanical components which indicate stray current corrosion/erosion is often found onboard ships with large battery packages combined with DC main power and large number of motor drives for variable speed control. The presentation will share some findings from this preliminary investigation, and also some cause-effect discussions.