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Simple-Cycle Efficiency Raised to Entirely New Level with the Wartsila 31SG Engine

Source: 11/15/2017, Location: Europe

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The technology group Wartsila has introduced a gas fuelled version of the successful Wartsila 31 engine, the Wartsila 31SG. This follows very positive acceptance of the diesel version in marine sector applications. The Wartsila 31 has been recognized by Guinness World Records as the world’s most efficient 4-stroke diesel engine.

The Wartsila 31SG is sharpening the edges of value related to the Smart Power Generation features. The defining feature of the Wartsila 31SG is its ability to achieve simple-cycle efficiency levels in excess of 50 % (compared to around 40 % with modern gas turbines), which represents a milestone achievement in the energy sector. In addition to reducing emissions, this higher efficiency offers the potential for considerable cost savings to power producers.

Another huge benefit made possible by the Wartsila 31SG is the increased flexibility which enables rapid response to continuously changing load patterns, especially within systems having a notable share of solar and wind energy. The engine can be continuously operated at 10 percent load, and can reach full load in two minutes from the start command. This flexibility overcomes the challenge created by the daily stops and starts that are inevitable with output from renewable sources.

The 20-cylinder, spark-ignited Wartsila 31SG produces 12 MW of power. The specially designed robust engine structure has an unprecedented brake mean effective pressure (BMEP) of 30 bar, allowing it to fully accommodate all the benefits of two-stage turbo charging.

Wartsila’s emphasis on efficiency is reflected not only in products, such as the Wartsila 31SG, but also in its lifecycle solution offering. The aim is to ensure that the power plant operates throughout its lifecycle in the most energy efficient way and in full accordance with regulations. This goes beyond purely maintenance related activities, and involves a holistic approach combining remote operational support and maintenance management services from Wartsila’s regional expertise centers, supported by digital innovation and advanced analytics. Based on measured data, Wartsila guarantees that performance targets which are agreed upon are met and maintained.

On announcing the introduction of the Wartsila 31SG, Niklas Wagar, Director, Technology & Product Management, Wartsila Energy Solutions commented: “The Wartsila 31SG is now available and represents a new generation answer to the rapidly evolving need for greater flexibility and better efficiency in power generation. It is the world’s most efficient 4-stroke combustion engine and it raises the bar in so many areas, including reliability and serviceability. With efficiency, flexibility, and the environment playing such prominent roles in today’s energy market considerations, the Wartsila 31SG is the right engine at the right time.”

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Related Categories: Diesel Engine  Engine Parts  General  Generating Sets  Generators  Marine Diesel Engine  Power Pack  Turbines (General)  Turbines: Gas  Turbines: Hydro  Turbines: Steam 

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