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Wartsila introduces 31SG pure gas engine

Sep 17, 2019 07:00 PM

Courtesy Wartsila

(HELSINKI) — The technology group Wartsila has launched the Wartsila 31SG pure gas engine for marine market applications. It is based on the Wartsila 31 product platform. The diesel version of the engine has been recognized by Guinness World Records as being the world’s most efficient four-stroke diesel engine.

The Wartsila 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 Wartsila 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 Wartsila’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.

Wartsila 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 Wartsila 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 Wartsila 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 Wartsila 31SG with battery packs furthermore enables designing for redundancy, while securing the highest total system efficiency.

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