Xvintage: an innovative 99m concept
In 2016, less than five years from now, the IMO Tier III rules will enter into force, imposing a severe reduction in NOx emissions.
These restrictions will apply to important designated areas, such as the Baltic Sea and the USA coastal waters. According to marine engine manufacturers, if conventional fuel is used the means for complying with the new regulations cannot be found on the engine itself. Instead, post-treatment of the exhaust gases will probably be the most popular solution. However, the dedicated urea tank and system will require significant space for the arrangement, and it may also have a negative effect on the exhaust back pressure, especially if combined with soot particle filters.
An alternative answer is to simply change the fuel from diesel to LNG. More than 100 vessels in merchant, offshore, and ferry applications are successfully operating on gas. The great benefit of this approach is that no exhaust gas treatment is needed to fulfil the NOx level requirements. At the same time, SOx levels are practically zero, no soot is produced, and CO2 emissions are also significantly reduced.
Of course there are challenges: from the ship design point of view, the biggest is related to the volume required to store the fuel. LNG requires two to three times the volume of an equivalent quantity of Marine Gas Oil and from an operational point of view, the logistics of LNG refuelling can be problematic. So, what would it mean to design a yacht with LNG, or better still, dual-fuel (LNG and MGO) propulsion? How would it look? Where do we stand and what can we expect regarding the availability of LNG fuel?
Fincantieri Yachts decided to explore these points, and to get real know-how and feedback on LNG and dual-fuel installations from Wärtsilä. For the subsequent project, Fincantieri Yachts developed the naval architecture while Wärtsilä was fully responsible for the propulsion system. Since it was immediately clear that a totally new yacht had to be developed around the concept, Stefano Pastrovich, who is very active in the research of new solutions for minimizing environmental impact, joined the project to provide his exciting interpretation as exterior and interior designer. Pastrovich Studio developed a new concept for the general arrangement, which is based on an extraordinary integration of LNG technology with the general layout. The result is a smooth harmony that unites the onboard lifestyle, the functional use of the yacht, and finally the décor. Thus we have an innovative 99m concept, the first dual-fuel, IMO Tier III compliant yacht.
type Luxury vessel
length overall 99.00 m 325’
beam 15,5 m 50,8’
draught 4,8 m 15,7’
propulsion dual-fuel propulsion system
exterior design Stefano Pastrovich
interior design Stefano Pastrovich
Wärtsilä 20DF generating set
Natural gas fuel specification
Diesel fuel specification