VIDEO: New propeller boss cap promises major efficiency gains

EcoMarine Innovations, a research group at the University of Strathclyde in Glasgow, Scotland, has developed a new propeller hub vortex cavitation-eliminating boss cap that promises major gains in propulsion efficiency.

Called the Holy Boss Cap, the conical shaped hub has holes (hence the name) bored into it that affect the high pressure in the hub vortex by redirecting the flow downstream. The resulting low-pressure swirl flows in the opposite direction to conventional hubs, behind the...

https://www.marinelog.com/technology/video-new-propeller-boss-cap-promises-major-efficiency-gains/

New propeller technology to reduce underwater radiated noise

Oscar Propulsion Limited and the University of Strathclyde have developed a propeller technology capable of reducing underwater radiated noise (URN) generated by ship propellers.

PressurePores system aims to reduce propeller tip vortex cavitation by applying a small number of strategically placed holes in the propeller blades. The addition of these pressure-relieving holes allows ships to operate with a more silent propeller, according to a statement.

In fact, this system took four years of...

https://container-news.com/new-propeller-technology-to-reduce-underwater-radiated-noise/

VESSEL REVIEW | Medstraum – Electric catamaran ferry for Norway’s Kolumbus

Norwegian shipyard Fjellstrand has completed construction of a new fully electric fast catamaran ferry to be operated locally. The 31-metre-long vessel has been aptly nam ..

The post VESSEL REVIEW | Medstraum – Electric catamaran ferry for Norway’s Kolumbus appeared first on Baird Maritime.

https://www.bairdmaritime.com/work-boat-world/passenger-vessel-world/ferries/vessel-review-medstraum-electric-catamaran-ferry-for-norways-kolumbus/

Naval Engineers from around the globe gather in Glasgow tomorrow for INEC 2018 and iSCSS

  • Duo of topical themes Inspiring Naval Engineering and Revolutionary Technology Inspiring Ship Control
  • 325+ delegates from 18 countries – Australia, Canada, China, Colombia, Germany, India, Italy, Japan, New Zealand, Nigeria, Portugal, Singapore, Spain, Sweden, The Netherlands, UK, United Arab Emirates and USA
  • Record breaking 100+ presentations – 22 of which are eligible for the Sir Donald Gosling Award

More than 325 delegates from 18 countries* gather in Glasgow this week for the...

http://www.allaboutshipping.co.uk/2018/10/01/172548/