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Wärtsilä introduces more powerful version of Wärtsilä 32 engine

Wärtsilä has introduced a more powerful version for marine applications of its popular medium-speed Wärtsilä 32 engine. First introduced in the 1980s, the Wärtsilä 32 has sold more than 4,000 units sold to the marine industry alone.

The Wärtsilä 32 engine is sold into both the marine and land-based power plants markets. In the marine industry the engine is used for both main engine and auxiliary engine applications. It is typically selected to power different types of tankers, container vessels, and offshore support and drilling vessels, while in the cruise and ferry sector, the Wärtsilä 32 is the most favoured engine of its size. In auxiliary electric production, the Wärtsilä 32 is widely utilized in all vessel categories where high auxiliary load is needed.

The new and upgraded version is available with an increased power output of 580 kW per cylinder at 750 RPM (50 Hz version). This represents a 15% increase in power output over the earlier 32 engine, despite having the same external dimensions. This increased output means that the Wärtsilä 32 now covers a power range from 3 MW to 9.3 MW. One area where this new power output is of particular interest is in the offshore drillship market. It is felt that in combination with Wärtsilä’s Low Loss Concept, the new engine can offer a powerful yet compact package for diesel electric propulsion.

The Wärtsilä 32 engine is fully equipped with all essential ancillaries, and has a thoroughly planned interface for the plant or ship’s control system.

The engine is able to operate efficiently and economically on low sulphur fuels (<0.1% S), making it suitable for operation in emission-controlled areas. It can also be equipped with a SCR catalyst, such as the Wärtsilä NOR (nitrogen oxide reducer), which can reduce NOx emissions by as much as 95%. This means that, already today, the machinery is IMO Tier III compliant. The standard Wärtsilä 32 entirely fulfils IMO Tier II regulations.


Julius J. Rim

Costs for reducing NOx emission by SCR is extremely expensive and cost-prohibitive for shippers. EGR system is available, as developed in the Green-Ship of the Future in Denmark. In the USA, a newly patented "Hydrated-EGR" process, was selected as a winner for marine engines to reduce PM and NOx emissions from the Port of Los Angeles. The POLA-sponsroed IMET-OGV demonstration program is underway in 2011. Engine makers and vessel owners are invited to participate in the demonstration program. The process does not add Urea, but add steam recovered by waste heat. Our main objective is to reduce costs for ocean shipping industry while meeting regulations. e:

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