WÄRTSILÄ NEW ELECTRONICALLY-CONTROLLED 2-STROKE ENGINES...

WÄRTSILÄ

NEW ELECTRONICALLY-CONTROLLED 2-STROKE ENGINES

WÄRTSILÄ X62 & WÄRTSlLÄ X72

3rd Iron Ore & Coal World Shipping Summit Athens, October 2011

1 © Wärtsilä Wärtsilä 2-stroke / W-X62 & W-X72

Improved efficiency, reduced fuel costs & emissions

One family of engines for future ships

Capesize Bulk carrier New W-X72 engine

Feeder / Panamax Container New W-X62/72 engine

Panamax Bulk carrier New W-X62 engine

Aframax / Suezmax Tanker New W-X62/72 engine

100,000 - 210,000 dwt 80,000 – 200,000 dwt

60,000 – 100,000 dwt 1,600 – 4,500 TEU


Increased Total Efficiency

Propeller Engine De-Rating Total

W-X62 * ~ 1-5% ~ 2% ~ 2-3% 5-10%

W-X72 * ~ 2-6% ~ 1% ~ 2-3% 5-10%

* Versus today´s solution


Increased total efficiency: Aframax tanker with W-X62

Particulars – base design •  Vessel service speed = 15.3 knots •  CMCR power = 13,560 kW at 105 rpm •  CSR load = 90% •  Service power = 12,204 kW •  Propeller speed at service power = 101.4 rpm •  Assumed propeller diameter = 7.2 m

Particulars – W6X62 •  Vessel service speed = 15.3 knots •  CMCR power = 13,000 kW at 91 rpm •  CSR load = 90% •  Service power = 11,700 kW •  Propeller speed at service power = 87.9 rpm •  Assumed propeller diameter = 7.5 m

Photo: Aframax tanker


Base design W6X62 Vessel speed 15.3 knots 15.3 knots

Service load 90% 90%

CSR power 12,204 kW 11,700 kW

CSR speed 101.4 rpm 87.9 rpm

BSFC at CSR 166.7 g/kWh 161.5 g/kWh

Daily fuel consumption1 (MDO) 48.83 t 45.30 t

Daily fuel consumption 100% 92.7%

Daily fuel consumption1 (HFO) 51.48 t 47.80 t

HFO difference per day - 3.7 t Annual HFO savings2 - 555,000 $ Annual CO2 reduction - 2,850 t

1 LCV of MDO = 42,700kJ/kg / HFO = 40,500kJ/kg 2 HFO price = 600USD/tonne, 250 days/year


Increased total efficiency: Aframax tanker with W-X62

EEDI for Aframax tanker propulsion with W-X62

Aframax range


EE

DI (

g / t

on –

nm

)

Deadweight at load line draft (tons)

EEDI FOR STANDARD OIL TANKERS

Increased total efficiency: Capesize bulk carrier with W-X72

Particulars – W6X72 •  Vessel service speed = 15.1 knots •  CMCR power = 18,100 kW at 82 rpm •  CSR load = 90% •  Service power = 16,290 kW •  Propeller speed at service power = 79.2 rpm •  Assumed propeller diameter = 8.7m


Particulars – base design •  Vessel service speed = 15.1 knots •  CMCR power = 18,780 kW at 95 rpm •  CSR load = 90% •  Service power = 16,902 kW •  Propeller speed at service power = 91,7 rpm •  Assumed propeller diameter = 8.2 m

Photo: Capesize bulk carrier

Increased total efficiency: Capesize bulk carrier with W-X72

Base design W6X72 Vessel speed 15.1 knots 15.1 knots

Service load 90% 90%

CSR power 16,902 kW 16,290 kW

CSR speed 91.7 rpm 79.2 rpm

BSFC at CSR 167.3 g/kWh 161.2 g/kWh

Daily fuel consumption1 (MDO) 67.90 t 63.00 t

Daily fuel consumption 100% 92.7%

Daily fuel consumption1 (HFO) 71.60 t 66.50 t

HFO difference per day - 5.1 t Annual HFO savings2 - 765,000 $ Annual CO2 reduction - 4,050 t

1 LCV of MDO = 42,700kJ/kg / HFO = 40,500kJ/kg 2 HFO price = 600USD/tonne, 250 days/year


EEDI for Capesize bulk carrier propulsion with W-X72


Capesize range

EE

DI (

g / t

on –

nm

)

Deadweight at load line draft (tons)

EEDI FOR STANDARD BULK CARRIERS

Reduced Total Cost of Ownership


Strong focus in optimizing the Total Cost of Ownership. Targets: • Reduce by 20% maintenance cost

• Reduce spare part prices •  5 years TBO for major overhaul

• Optimize lube oil feedrate • Guide feedrate 0,6 g/kWh •  Fuel sulphur contents (0à5%)

• Reduced maintenance cost by increasing crew maintenance jobs

• User-friendly engine, tools & e-learning

• Reduce off-hire risks by increased reliability (proven technology) and redundancy

Design for lower manufacturing & assembly cost

•  Experience •  Modularity between W-X62 and W-X72 •  Co-operations with engine builders à localization and production know-how •  Communication with shipyards à installation on the ship

Improved installation features

•  Improve engine installation at shipyard

•  Improve platform, piping, electrical connections, etc.

•  All ancillaries optimised for lower initial capital expenditure, reduced installation costs and lower operating costs

X Y


Tier III solutions – SCR

Catalyst before the turbocharger for 2-stroke Available today from Wärtsilä •  First 2 SCR installations 1999 and 2000

•  3 RoRo vessels of Wagenborg with 7RTA52U

•  M/V “Spaarneborg”

•  M/V “Schieborg”

•  M/V “Slingeborg)

•  10 years operation

•  >70 000 running hours per SCR; replaced once


Development of integrated SCR on the engine

Under development

Wärtsilä 2-stroke / W-X62 & W-X72 14 © Wärtsilä

Tier III solutions – Low pressure gas technology

Gas technology for 2-stroke under development •  New benchmark for low speed engines

running on gas

•  Low pressure gas test engine (RTX5) successfully tested on 19th Sept. 2011

•  Tier III compliant •  Vast experience from low pressure 4-

stroke Dual Fuel engines

Summary of benefits for owners

o  LOW FUEL COSTS

o  HIGH TOTAL EFFICIENCY

o  REDUCED EMISSIONS (TIER II / III)

o  WIDE APPLICATIONS

o  HIGH RELIABILITY

o  PROVEN TECHNOLOGY (10 YRS)

o  LOW OPERATING COSTS

o  SERVICE-FRIENDLINESS

o  LOW CAPITAL & ASSEMBLY COST

o  OPTIMIZED FIT TO SHIP

o  COMPACT ENGINE

o  PLANNED DUAL FUEL


WÄRTSILÄ NEW ELECTRONICALLY-CONTROLLED 2-STROKE ENGINES...

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