Wärtsilä announced that has been awarded model year 2017 certification of emissions compliance from the United States Environmental Protection Agency (EPA), for its Wärtsilä 34DF dual-fuel engine family. These are the first Category 3 Tier III certificates by the EPA.
The Tier III certification of conformity covers the Wärtsilä 34DF engines manufactured from the date of issue until the end of 2017. Category 3 relates to engines with a displacement per cylinder of greater than 30 litres.
In particular, the certification verifies that the engine is fully compliant with the EPA Tier III emission standards in gas mode operation. As required by the EPA Tier III standard, the engine is equipped with a continuous nitrogen oxide (NOx) measuring and monitoring system for verifying emissions compliancy inside NOx Emission Control Areas (NECA). When sailing outside NECAs, the 34DF engine can be operated with conventional marine diesel fuels if required.
The 34DF engine features dual-fuel technology and high efficiency. For marine applications, it is manufactured in configurations from 6 to 16 cylinders covering a power range of 2880 – 8000kW. The flexibility means that the engine can be optimised for constant speed generating sets, as well as variable speed mechanical drives for main engine applications.
