Wärtsilä Medium-Speed Marine Diesel Engines

COMPLIANCE WITH ENVIRONMENTAL REGULATIONS AND OTHER STANDARDS
Environmental issues, especially emissions
reduction and fuel consumption, have
become increasingly important in the
shipping sector where enforcement of
environmental regulations, at both global
and local levels, has notably increased. This
puts pressure on the marine industry to
constantly explore new ways of reducing the
environmental impact of ships.
Wärtsilä creates added value for its
customers by providing products, solutions
and services that fulfill their needs and
expectations. The development of highquality,
reliable, and environmentally
sound solutions and services has come
as a result of long-term collaboration and
continuous interaction with our customers.
We provide service support to ensure
optimal performance throughout the product
lifecycle. The upgrading of installed products
can also extend their service life.
20
18
16
14
12
10
8
6
4
2
0
NOx emissions, g/kWh
IMO Tier I, 2000
IMO Tier II, 2011
IMO Tier III, 2016 in emission control areas
0 200 400 600 800 1000 1200 1400 1600
Engine speed, rpm
WÄRTSILÄ MEETS THE NEW
REQUIREMENTS ON SHIP EMISSIONS
The International Maritime Organization (IMO)
has approved amendments to the MARPOL
Annex VI regulations on ship emissions. These
regulations set stricter limits on emissions
of Nitrogen Oxides (NO X ) from the engines,
as well as on the sulphur content of the fuel.
The new requirements will enter into force in
various phases during the years 2010–2020.
As regards NO X emissions, Wärtsilä has
already introduced solutions that comply with
these requirements. Wärtsilä engines are
designed for operation on any fuel sulphur
content. As a response to the tightening
Sulfur Oxides (SO X ) emissions, Wärtsilä has
developed scrubber technology that allows
exhaust gases to be cleaned to meet the tight
regulations.
GAS ENGINES HIGHLIGHTED
Wärtsilä has a multifaceted gas engine
strategy, and can provide gas engines
for vessels. Being at the forefront of
technological developments gives Wärtsilä
many opportunities arising from the tightening
environmental regulations. Shipping can
reduce its carbon footprint through ship
design, efficient engines, and optimal
propulsion solutions.
MAIN FEATURES
Wärtsilä engines offer outstanding powerto-weight
and power-to-space ratios in their
power range. They have bore sizes from 200 to
640 mm and different cylinder configurations
to cover a power range from 0.5 MW to
20 MW and are capable of using various fuels.
Wärtsilä 4-stroke engines comply with both
IMO Tier I and IMO Tier II emission legislation
without secondary purification systems.
Full advantage is taken of the proven
solutions developed in earlier Wärtsilä engines,
while new features and customer benefits
have been added. Reliability and total economy
are the guiding principles, although emission
control options and installation friendliness are
strongly emphasized.
• Cylinder power from 185 kW to 2150 kW
• Nominal speed from 500 to 1000 rpm
• Multi-fuel operation capability
• High thermal efficiency and low emissions
• High reliability and low maintenance costs
• Low exhaust gas emissions
• Fuel economy throughout the entire engine
operational range
• Embedded automation system including
speed control
4