Variable Turbine Area Technology News

In March this year, The U.S. Environmental Protection Agency proposal to designate waters off the North American coasts as an Emission Control Area was adopted by IMO, the International Maritime Organization. The North American ECA is a key part of a comprehensive EPA program to address harmful emissions from large ships. Which are the time schedules of upcoming emission regulations? How are marine engine manufacturers preparing for the tighter air emission limits being adopted? Henrik Segercrantz explores.

The turbochargers with VTA technology will equip the MAN B&W brand type 6S46MC-C low-speed engines aboard the new tanker, Stena Progress. On the basis of earlier trials, they are expected to reduce fuel consumption by around 2-3% with parallel reductions in exhaust emissions. “We are always interested in new energy saving technologies,” noted Hans Norén, President, Concordia Maritime. “When approached by MAN Diesel about employing VTA we decided right away that this was something we wanted to participate in. Stena Progress is a 65,200 DWT shallow-draught ice class tanker of the P-MAX type under construction for Concordia Maritime at the Brodosplit shipyard in , where the main engines will also be built under license.

Concordia Maritime and French energy company Total have jointly taken the decision to install MAN Diesel turbochargers with the company’s new VTA variable turbine area technology aboard a new tanker. The turbochargers with VTA technology will equip the MAN B&W brand low speed engines aboard the new P-MAX tanker Stena Progress, which will be delivered June 2009. On the basis of earlier trials, they are expected to reduce fuel consumption by around 2-3% with parallel reductions in exhaust emissions. “We are always interested in new energy saving technologies,” noted Hans Norén, President, Concordia Maritime. ”When approached by MAN Diesel about employing VTA we decided right away that this was something we wanted to participate in.