Waertsilae launched a new medium speed engine at Nor-Shipping 2015 in Oslo. The company said the Waertsilae 31 engine has significantly reduced maintenance requirements and fuel efficiency and flexibility with fuel consumption efficiency as low as 165 g/kWh. The Waertsilae 31 engine is designed to serve a variety of vessel types requiring main engine propulsion in the 4.2 to 9.8 megawatts power range. In the offshore sector, the Waertsilae 31 is ideally suited for anchor handlers, other types of OSV, drilling and semi-submersible vessels, where the requirements are for operational flexibility, high power density, long intervals between overhauls and high levels of safety. The Waertsilae 31 engine comes in three alternative versions: diesel, dual-fuel (DF) and spark-ignited gas (SG). The multi-fuel capabilities that the Waertsilae 31 brings to the market extend the possibilities for operators to utilise different qualities of fuels, from very light to very heavy diesel, and a range of different qualities of gas.
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