Wärtsilä has received an order to supply a comprehensive solutions package for a series LNG carriers being built for Danish operator Evergas, a leading transporter of petrochemical gases and natural gas liquids.
The ships of the Dragon 27500 series are being built at the Sinopacific Offshore & Engineering (SOE) shipyard in China. In addition to LNG, the ships will be able to carry and reliquefy Ethane and LPGs with the cargo handling package supplied by Wärtsilä. In addition, the company's order includes the dual-fuel engines and propulsion equipment.
Energopac
Efficiency and fuel savings are also gained through the Wärtsilä Energopac rudder, which because it streamlines the water flow from the propeller, lowers resistance and increases propulsion power.
Primarily on LNG
The vessels will operate primarily on LNG using dual-fuel engine technology. This will enable them to comply with current and anticipated environmental legislation, including the International Maritime Organisation's (IMO) Tier III regulations. The technology, however, also provides operational flexibility and redundancy, since it allows the possibility to utilise various conventional fuels in addition to LNG. The integrated LNG fuel system enables the vessel to operate on natural gas independently of the cargo carried.
Optimised Package
The integrated systems contract enables a range of individual solutions to be combined into a fully optimised package. This is clearly demonstrated, for example, where the LNG supply system is integrated with the cargo handling system so that it can be used to cool the cargo. In so doing, less energy and power is needed to keep the cargo temperature suitably low, thus providing a more efficient and environmentally sound overall system.
Most Modern and Sustainable LNG Carriers Built so Far
Aaron Bresnahan, Vice President Sales, Wärtsilä Ship Power says the integrated package 'whereby the cargo handling system, the gas supply system, and the propulsion machinery are fully integrated with each other, will make the vessels the most modern and environmentally sustainable LNG carriers ever built.'
