Wartsila’s dual-fuel engine gets upgrade

Finland’s Wartsila said it has upgraded its 20DF dual-fuel engine to deliver increased power output.

Besides increased power output, the engine would have a reduced environmental impact and would feature a lower fuel consumption, according to a Wartsila statement.

In addition, the upgrade would also further increase the engine’s fuel flexibility by allowing a much wider gas quality span, down to methane number (MN) 65, while still delivering full output, the firm said.

Wartsila said it has boosted the engine’s power per cylinder from 185 to 195 kW, while the methane slip would go down by as much as 40 percent, thereby drastically reducing the CO2 emissions.

Also, the firm will replace the existing 20DF control system with the latest Wartsila UNIC all-inclusive automation system.

For gen-set applications, Wartsila has introduced skip-firing technology combining torque control with cylinder deactivation to optimise fuel consumption at low engine load. Energy consumption will decrease by three percent.

Wartsila added the new 20DF engine was better suited for variable speed applications with mechanical propulsion.

“The focus at Wartsila is on making every effort to support our customers by improving efficiencies, lowering operating costs, and lessening the carbon footprint of operations. This latest version of the Wartsila 20DF achieves all these ambitions, and is a positive move towards reducing greenhouse gas emissions,” says Lars Anderson, director, product management & sales support at Wartsila marine power.

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