Wartsila SP Ppt 2012 LNG OSV 1.
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Transcript of Wartsila SP Ppt 2012 LNG OSV 1.
The emerging role of LNG for OSV’s:The facts about LNG-fuelled vessels
TERJE NORDTUN Wärtsilä
OSJ Conference15-16 February 2012
1 © Wärtsilä
Factor trends: Environment
Factor trends: Environment
LOCAL
GLOBAL
LOCAL
LOCAL
Acid rainsTier II (2011)Tier III (2016)NOx
Greenhouse effectUnder evaluation by IMO
CO2
Acid rainsSulphur content in fuelSOx
Direct impact on humansLocally regulated
Particulatematter
Emission Controlled Areas
Established Emissions Controlled Areas
Emissions Controlled Areas under consideration
Factor trends: Fuel Availability and Prices
Sources: www.lngoneworld.com, www.bunkerworld.com, LR Fairplay
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USD
/MB
tu
LNG Japan average [USD/MBtu]
NG Henry hub [USD/MBtu]
HFO 380cst Rotterdam [USD/MBtu]
MGO Rotterdam [USD/MBtu]
Potential saving in fuel cost by LNG powering
(based on 950 USD/t for MGO and 630 USD/t for LNG)
1.150.000 USD annually (36% lower than MGO operation)
DUAL-FUEL (DF)
GAS-DIESEL (GD)
Gas burning technologies
SPARK-IGNITION GAS (SG)
1987 1992 1995
Dual-Fuel applications - References
4 segments >150 installations > 5’000’000 running hours
Power Plants
DF Power Plant51 installations186 engines2’600’000 rhOnline since1997
Merchant
LNGC• 89 vessels• 353 engines• 1’900’000 rhConversion• 1 Chem. Tanker• 2 engines conv.• Complete gas
train• Complete design
Offshore
PSVs/FPSOs• 17 vessels• 87 engines• Online from 1994New orders:• Harvey Gulf; the
first 3 LNG-PSV to be operated in the Gulf of Mexico!
Cruiseand Ferry
LNG ferries• 1+1 vessels• 4 engines per
vessels• Complete gas
train• 2800 passengers• In service in 2013
Navy
Costal Patrol• Coming…
Dual-Fuel advantages
Main advantages of the Dual-Fuel 4-stroke engine compared to SG:
• Redundancy, backup without interruptions in power or speed.• Able to operate on liquid fuel outside ECA-area• Simple system, no PTI/”take me home” or double gas system needed.• DP class fulfilled with single tank/gas supply system• Vessel re-routing possible, gas supply not a limitation
Emission advantage
CO2
NOx
SOx
Particulates
Dual-Fuel enginein gas mode
Dieselengine
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Emissionvalues [%]-25%
-85%
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-100%
Methane slip
Methane slip status
THC = 6 g/kWh corresponds to 8-10% reduction in GHG compared with MDF operation
LNG system in Principal
LNG filling line
LNG tank
Pressure build-up circuit
Water /glycol
Evaporator
Stop and Master valve
Gas Valve Unit
Tank room
Offshore supply vessel arrangement
LNG-Fuelled OSV’s in Operation – February 2012
Viking Energy - 2003 Stril Pioneer - 2003
Viking Queen - 2008 Viking Lady - 2009
Skandi Gamma - 2011 Normand Arctic- 2012
All equipped with Wärtsilä DF engines
LNG Fuelled OSV’s on order with Wärtsila DF engines
4 x PSV’s for Harvey Gulf
2 x PSV’s for Eidesvik Offshore
1 x PSV for REM Offshore
Conclusions – The facts:
• LNG is an environmental friendly fuel reducing shipping emissions
• Use of LNG as fuel will also reduce fuel cost
• Wärtsilä has proven solutions for complete LNG propulsion systems including storage and handling onboard ships
• Application of DF engines gives high flexibility and redundancy and is the preferred solution for OSV’s
• The Wärtsilä DF technology is well proven with more than 5.000.000 accumulated running hours
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