Port & Shipping Tech 20152015.gsweek.it/wp-content/uploads/Stefano-De-Marco.pdf · 2016-11-08 · Wärtsilä 34 DF Wärtsilä 20 DF kW 5 ... • From single spare parts to exchange

Port & Shipping Tech 2015- Genova 17 September 2015 -

BOOSTING EFFICIENCY OF PRIME MOVERS

Stefano de MarcoGM Sales – Marine Solutions

© Wärtsilä29/ © Wärtsilä/

Wärtsilä 31 – in a nutshell

Stefano de Marco: Boosting efficiency of prime movers - Genoa, 17th September 2015

Sets New Market Standard in:

• Efficiency• Loading• Fuel flexibility • Environmental footprint• Maintenance approach

Efficiency levels

higher than 50%!

3


Wärtsilä engine portfolio - diesel


0 2 000 4 000 6 000 8 000 10 000 12 000 14 000 16 000 18 000 20 000

Wärtsilä 46F

Wärtsilä 38

Wärtsilä 31

Wärtsilä 32

Wärtsilä 26

Wärtsilä 20

kW

4


Wärtsilä engine portfolio – dual fuel


0 2 000 4 000 6 000 8 000 10 000 12 000 14 000 16 000 18 000 20 000

Wärtsilä 46 DF

Wärtsilä 31 DF

Wärtsilä 34 DF

Wärtsilä 20 DF

kW

5

© Wärtsilä29/

Wärtsilä 31 – Let the customer decide

Design parameters Pure Gas Diesel Dual Fuel

Bore (mm) 310 mm 310 mm 310 mm

Stroke (mm) 430 mm 430 mm 430 mm

BMEP (bar) 27.2 27.1 30.3 30.1 27.2 27.1

Nom. Speed (rpm) 720 750 720 750 720 750

Max. Output/CYL (kw) 530 550 590 610 530 550

Available cylinder configurations 8V31 10V31 12V31 14V31 16V31

All engine types introduced from the start



Wärtsilä 31 – fuel flexibility


Spark-Ignited gasDiesel Dual-Fuel

• The most comprehensive portfolio offering in the market• The easiest accessible/maintainable design• The highest level of commonality

7


The lowest fuel consumption of any 4-stroke engine


*) with 5 % tolerance and without pumpsSource; respective home pages & Product manuals

0 200 400 600 800 1000 1200 1400

kW/cyl

Spe

cific

fuel

oil

cons

umpt

ion

at

85 %

load

[g/k

Wh]

*)

5 g/kWhWÄRTSILÄ 31

8

© Wärtsilä29/

Wärtsilä 31 – Engine dimensions

Engine platform A* A B C FWeight (tons)

Wärtsilä 8V31 6180 5585 3205 3100 1500 56

Wärtsilä 10V31 6820 6225 3205 3100 1500 62

Wärtsilä 12V31 7500 6905 2550 3400 1500 71

Wärtsilä 14V31 8140 7545 2550 3400 1500 77

Wärtsilä 16V31 8780 8185 2550 3400 1500 85



Wärtsilä 31


•Technical details

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Wärtsilä 31 - technologies

• 2-stage Turbocharging for all configurations– Free end (FE)– Flywheel end (DE)

• Digitally controlled fuel injection• Fully adjustable semi-hydraulic valve

actuation (VIC/VEC)– Variable Inlet valve Closing– Variable Exhaust valve Closing

• New generation UNIC control system • Full power PTO available• Noise attenuation covers


© Wärtsilä29/

Wärtsilä 31 New innovations

• Cross Flow cylinder head• Semi-Hydraulic valve-train• Spray cooled pistons• Patented Tri receiver

scavenging system• Intelligent integrated

electrical slow turning/turning device



Reduced noise

Crankcase covers

Covers for engine top part

Special crankcase covers and complete enclosure of engine top part with special covers


© Wärtsilä29/

Digitally controlled fuel injection

• Most advanced and flexible system onthe market

• Single needle or twin needle injector (for higher performance, or pilot fuel for DF)

• No separate control oil system for the injectors• No separate pilot fuel oil injection system (DF)• Smokeless operation, FSN well below 0.3 on

any load


© Wärtsilä29/

Wärtsilä 31 automation

• New generation UNIC with increased computational capacityKey element in reaching the world record efficiency

• Digital heavy-duty touch screen+buttons• Optional secondary display unit available



Offshore


• High availability and up-time• Extreme efficiency for complete power range• Fast starting and loading capability

Support Drilling & platforms Construction

16


Cruise and Ferry


• Extreme efficiency for complete power range• Fuel flexibility• Green image

Cruise / RoPax Ferries

17


Others


• Direct drive installations• Electric drive installations• Hybrid drive installations• Auxiliary engine• Single main engine• Heavy duty installations

Navy andresearch vessels

Ice breakersFishing and special vessels

SmallscaleLNG carriers

Small scaleMerchant vessels

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ApprovedaDBAD525744Doc.ID: Revision: Status:© Wärtsilä

W31ROPAX CASE STUDY

WÄRTSILÄ - APPLICATION DEVELOPMENT

A.Zotti 2015

ApprovedaDBAD525744Doc.ID: Revision: Status:© Wärtsilä29/ Internal

Main data and assumptions

© Wärtsilä29/

Comparison input simplified

Propulsion power 30’000 kW

Sea Margin 10%

Speed 24 kn

Hotel load in Port 2500 kW

Hotel load at Sea 3000 kW

Bow Thrusters 2 x 1800 kW

Stern Thrusters 2 x 1800 kW

Running hours per year 8000

% time in ECA 100%

Main ship requirements

Operation profile

33%

6%4%

7%

3% 3%

44%

0%

5%

10%

15%

20%

25%

30%

35%

40%

45%

50%

Run

ning

hou

rs

Operation mode

© Wärtsilä29/

Machinery options

• 5 x W16V32 (560 kW/cyl - 720 rpm – 60 Hz – CS – MGO operation) – Reference case

• 5 x W14V31 (590 kW/cyl - 720 rpm – 60 Hz – CS – MGO operation)

© Wärtsilä29/

G

8,96 MW MW16V32

G

8,96 MW MW16V32

G

8,96 MW MW16V32

G

8,96 MW MW

16V32

G

8,96 MW MW

16V32

W32

MGO

5 x 16V32

SCR

SCR

SCR

SCR

SCR

1,8 MW 1,8 MW

Total power installed: 44,8 MWTotal n° of cylinders installed: 80

M

FPP

M

FPP1,8 MW 1,8 MW

© Wärtsilä29/

G

8,26 MW MW14V31

G

8,26 MW MW14V31

G

8,26 MW MW14V31

G

8,26 MW MW14V31

W31

MGO

5 x 14V31

SCR

SCR

SCR

SCR

SCR

1,8 MW 1,8 MW

Total power installed: 41,3 MWTotal n° of cylinders installed: 70

M

FPP

M

FPP1,8 MW 1,8 MW G

8,26 MW MW14V31

© Wärtsilä29/

0

2000

4000

6000

8000

10000

12000

14000

16000

5 x W16V32 5 x W14V31

kEU

R/y

ear

Annual fuel cost – TODAY fuel price scenario

Note:

- MGO price: 510 €/ton – LHV 42’800 kJ/kg- SFOC with built on pump included

Reference - 5%


Modular servicing and conversions


Modular servicing• From single spare parts to exchange units

Power pack units• Can be quickly exchanged• Traditional, single piece maintenance remains possible

Conversion: Diesel / DF / SG• The modular design enables fast and efficient

conversion• standardized component interfaces implies no need for

machining

26


Increased time between overhaul (TBO)


ProceduresPrevious generationdiesel engine (LFO) Wärtsilä 31

Valve clearance measurement

every 1000 hr No need

Injection valve maintenance

every 2000 hr every 8000 hr

Injection Pumps /HP fuel pumps overhaul

every 16,000 hr every 32,000 hr

Cylinder head /piston overhaul

every 20,000 hr every 32,000 hr

Examples:

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© Wärtsilä29/ © Wärtsilä/ Stefano de Marco: Boosting efficiency of prime movers - Genoa, 17th September 2015

Wärtsilä 31

28

© Wärtsilä29/ © Wärtsilä/ Stefano de Marco: Boosting efficiency of prime movers - Genoa, 17th September 201529

Documents

Port & Shipping Tech 20152015.gsweek.it/wp-content/uploads/Stefano-De-Marco.pdf · 2016-11-08 · Wärtsilä 34 DF Wärtsilä 20 DF kW 5 ... • From single spare parts to exchange