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News

The best possible seakeeping behaviour for new RoRo vessels

Tuesday, June 30, 2020 - 12:28
Wallenius SOL

These days, most commercial cargo ships are built with keels reducing its tendency to roll and providing better seakeeping qualities. Wallenius SOL assigned SSPA to perform an assessment of the risk for parametric roll for their new RoRo vessels. A model with new keel solutions was tested at SSPA to evaluate the seakeeping characteristics.

Emission-free vessel concept for inland waterways developed

Wednesday, June 24, 2020 - 11:09
IWTS

Today there are no inland waterway vessels operating in Sweden. Current limited traffic consists only of IMO vessels. Using the inland waterways (IWW) to a larger extent would create positive benefits according to authorities, goods owners, shipping companies, ports and freight forwarders. How can SSPA develop an innovative logistic concept for coastal and inland shipping in Sweden? Is it possible to look beyond current limitations in existing business models, legislation, goods flow characteristics and vessel concepts? SSPA’s experts and researchers studied this in one of the research projects and has now developed a business concept with an emission free vessel, electrified, operating between the coastal port and a nearby inland port with high frequency. Read the full report: Battery electric inland waterway vessel.

Virtual customer attendance for Towing Tank tests

Monday, June 22, 2020 - 15:33
Towing Tank tests

Almost all our customers have travel restrictions due to the Corona pandemic and are not able to attend the model tests on site at SSPA as usual. Our experts investigated the possibilities of a remote participation for our clients to be involved in the model testing without being physically present. SSPA has implemented a live video streaming service enabling our customers to participate while we are performing the Towing Tank tests from wherever they are in real time.

Determining the EEDI “minimum propulsion power”, new paper

Monday, June 8, 2020 - 10:24
kvlcc2

Recently, SSPA’s experts in seakeeping and ship performance in waves presented a new paper at an international conference, held by RINA (the Royal Institution of Naval Architects). A concise version of the presented paper and the results is available for download. The introduction of EEDI (the Energy Efficiency Design Index) almost a decade ago, slow steaming and the wish to reduce bunkering costs have resulted in a trend to install less powerful engines in ships. To avoid vessels becoming underpowered and unsafe, IMO (the International Maritime Organization) published an interim guideline. SSPA used the KVLCC2 tanker as a case study and followed the guideline step by step to find the minimum engine size. Our experts used a combination of CFD (Computational Fluid Dynamics) and model tests. 

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