An ageing VTR turbocharger can affect engine performance, increase specific fuel oil consumption (SFOC) and limit the maximum power output. The Wärtsilä Performance upgrade for Vasa 32LN engines is a comprehensive, tailored package that boosts engine performance, reduces operating costs and increases operational flexibility – all while helping you to comply with increasingly strict emission requirements.
The upgrade is suitable for all Wärtsilä Vasa 6R32LN and 12V32LN installations that mainly operate between 50% and 100% load and is particularly recommended for installations operating in extreme environmental conditions. In addition, Vasa 32 engines manufactured after 1991 may also be upgraded following a Low NOx conversion. The process involves replacing the VTR turbocharger with a modern, state-of-the-art, high-efficiency turbocharger, enabling the use of earlier inlet valve closing, known as the Miller concept. The upgrade reduces SFOC by up to 5 g/kWh, according to laboratory tests performed with an engine running at 85% load.