Rolls-Royce LNG engines reach 25 million hours of operation

Rolls-Royce said that its engines powered solely by liquefied natural gas have completed 25 million hours of operation on land and at sea, since their introduction in 1991.

More than 650 Bergen lean burn gas engines are in service today, with a power output up to 9,600kW. The engines are used for a variety of applications ranging from powering ferries, cargo ships and tugs to a wide range of land-based power generation throughout the world, the company said in a statement.

The gas fuelled engines reduce Nitrogen Oxide (NOx) emissions by about 90 percent while Sulphur Oxide (SOx) and particulates emissions are negligible. Emissions from Rolls-Royce gas engines are already within the limits of International Maritime Organisation (IMO) Tier III environmental legislation, due to come into force in 2016.

The engine with the highest accumulated running hours is still operating today, powering the Lemvig power plant in Denmark. It has run more than 160,000 hours since installation in 1992.

The first Bergen engines using LNG for marine use entered service in 2006 powering doubled-end car ferries, and their use has since been adopted for a growing range of ship types including coastal cargo ships, tankers, cruise ferries, tugs and offshore support vessels.

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Image: Rolls-Royce

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