port & shipping tech 20152015.gsweek.it/wp-content/uploads/stefano-de-marco.pdf ·...
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Port & Shipping Tech 2015- Genova 17 September 2015 -
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BOOSTING EFFICIENCY OF PRIME MOVERS
Stefano de MarcoGM Sales – Marine Solutions
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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%!
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Wärtsilä engine portfolio - diesel
Stefano de Marco: Boosting efficiency of prime movers - Genoa, 17th September 2015
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
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Wärtsilä engine portfolio – dual fuel
Stefano de Marco: Boosting efficiency of prime movers - Genoa, 17th September 2015
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
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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
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Wärtsilä 31 – fuel flexibility
Stefano de Marco: Boosting efficiency of prime movers - Genoa, 17th September 2015
Spark-Ignited gasDiesel Dual-Fuel
• The most comprehensive portfolio offering in the market• The easiest accessible/maintainable design• The highest level of commonality
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The lowest fuel consumption of any 4-stroke engine
Stefano de Marco: Boosting efficiency of prime movers - Genoa, 17th September 2015
*) 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
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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
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Wärtsilä 31
Stefano de Marco: Boosting efficiency of prime movers - Genoa, 17th September 201510
•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
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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
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Reduced noise
Crankcase covers
Covers for engine top part
Special crankcase covers and complete enclosure of engine top part with special covers
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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
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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
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Offshore
Stefano de Marco: Boosting efficiency of prime movers - Genoa, 17th September 2015
• High availability and up-time• Extreme efficiency for complete power range• Fast starting and loading capability
Support Drilling & platforms Construction
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Cruise and Ferry
Stefano de Marco: Boosting efficiency of prime movers - Genoa, 17th September 2015
• Extreme efficiency for complete power range• Fuel flexibility• Green image
Cruise / RoPax Ferries
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Others
Stefano de Marco: Boosting efficiency of prime movers - Genoa, 17th September 2015
• 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
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ApprovedaDBAD525744Doc.ID: Revision: Status:© Wärtsilä29/ Internal
Main data and assumptions
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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
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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)
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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
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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
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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%
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Modular servicing and conversions
Stefano de Marco: Boosting efficiency of prime movers - Genoa, 17th September 2015
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
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Increased time between overhaul (TBO)
Stefano de Marco: Boosting efficiency of prime movers - Genoa, 17th September 2015
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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Wärtsilä 31
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