rss icon Subscribe
desktop mobile

Wärtsilä Rolls-out Pure Gas Marine Engine

The highly efficient Wärtsilä 31SG pure gas engine is now available for marine applications. Pic: Wärtsilä

Shailaja A. Lakshmi

Finnish corporation Wärtsilä has launched the 31SG pure gas engine for marine market applications.

The 31SG is based on the successful Wärtsilä 31 product platform; the diesel version of the engine has been recognized by Guinness World Records as being the world's most efficient 4-stroke diesel engine.

The Wärtsilä 31SG engine further reduces the total cost of ownership and the environmental footprint for vessels operating in regions where there is a developed gas infrastructure. The commercial launch of the Wärtsilä 31SG takes place in September at the Gastech 2019 conference and exhibition being held in Houston, Texas, as well as at the Neva St. Petersburg exhibition and maritime forum in St.Petersburg, Russia.

Following Wärtsilä's introduction of dual-fuel engine technology in the 1990s, LNG has become established as a viable and attractive marine fuel. This has led to the rapid expansion of the global LNG bunkering infrastructure, which sets the stage for the next evolutionary step, namely a larger scale application of pure gas engines within the marine and offshore industries.

"The highly efficient Wärtsilä 31SG moves the industry forward by providing owners and operators with a practical means for lowering costs and enhancing environmental sustainability. The gas-only focus and lean-burn spark ignition technology allows for further optimization of thermal efficiency, while lowering greenhouse gas emissions and facilitating adaptations for alternative heavier gas fuels, such as LPG," says Rasmus Teir, Product Manager, Wärtsilä Marine.

Wärtsilä has an extensive track record with SG lean-burn technology, with more than 1800 engines delivered and 37 million running hours accumulated in demanding land-based energy market applications. The Wärtsilä 31SG was introduced to the energy market in 2017, and now builds on this pedigree to offer reliable pure gas solutions with low lifecycle costs also for marine customers.

The increasing adoption of hybrid propulsion offers additional opportunities for pure gas engines. The Wärtsilä 31SG is ideally suited for hybrid applications, since it provides outstanding thermal efficiency while also providing investment cost reductions that help offset the additional cost of energy storage. Pairing the Wärtsilä 31SG with battery packs furthermore enables designing for redundancy, while securing the highest total system efficiency.

This latest Wärtsilä development is in line with the company's target for reducing the greenhouse gas emissions from gas engines by 15 percent from 2015 levels by 2020.

Sep 19, 2019

 

Marine Equipment

INSIGHTS: Michael G. Johnson

Michael G. johnson, Sea Machines CEO & President

Sea Machines Robotics CEO & President.Michael Gordon Johnson is a marine engineer

Danish Suppliers Facilitate Sustainable Transport

Photo: Danfoss

The global shipping industry is facing requirements for substantial reductions in emissions and

ABS Brings Together Taiwan's Industry Leaders

Photo: ABS

Taiwan’s maritime industry leaders met to debate decarbonization, digital technologies and the

Gas

US Crude Exports Expected to Double by 2022

Graph: Rystad Energy

The U.S. could see its crude oil exports nearly double by 2022, according to energy research firm

Mozambique LNG Project Moves Ahead

Image: Mozambique LNG project

With a second Final Investment Decision (FID) in just 2 years, Mozambique has officially

Chinese LNG Sector Growth to Continue

Graph: VesselsValue

China is at the forefront of the large LNG sector growth and is emerging as the largest source of

Maritime Apps