Large engineering group Wärtsilä will supply its recently introduced Wärtsilä 25DF dual-fuel (LNG) engines to two new sail-assisted luxury cruise ships.
The vessels are being built at the Chantiers de l’Atlantique (CdA) shipyard in France for Orient Express Silenseas, part of French hospitality group, Accor. There is an option for an additional two vessels.
The Wärtsilä 25DF engine is the most efficient and most environmentally friendly marine engine in its power range, the company claimed.
It features a two stage turbocharging system, common rail fuel injection, and cylinder wise combustion control, which enables unparalleled power density and efficiency across the full operating range, delivering low fuel consumption and reduced emissions, Wärtsilä added.
“These will be very special cruise vessels and have been designed to operate with a high level of environmental sustainability. For this reason, the Wärtsilä 25DF engine was selected. It is silent, compact in size yet powerful in performance, so it was the perfect choice for these ships,” said Yann Penduff, CdA’s Project Manager.
“The Wärtsilä 25DF is an engine that supports the shipping industry’s transition to greater fuel efficiency and a much-reduced carbon footprint. It marks the beginning of a new era of future-proof medium speed, small-bore engines, and comes as an important step towards the maritime industry meeting its de-carbonisation goals. We are delighted that it has been selected for these very advanced cruise vessels,” added Stefan Nysjö, Vice President, Power Supply, Wärtsilä Marine Power.
Wärtsilä will supply four Wärtsilä 25DF engines, each developing 2,070 kW at 1,000 rev/min; four gas valve units (GVUs) and four Wärtsilä NOx Reducer (NOR) emission after-treatment systems for each cruise ship.
The equipment is scheduled for delivery to the shipyard commencing in autumn 2024.
The first of the 220 m long vessels will be named the ‘Orient Express Silenseas’ and each ship is designed to accommodate around 116 pax.