WÄRTSILÄ ENVIRONMENTAL SERVICES CASE: UNIQUE CONVERSION...
Transcript of WÄRTSILÄ ENVIRONMENTAL SERVICES CASE: UNIQUE CONVERSION...
WÄRTSILÄ ENVIRONMENTAL SERVICES CASE: UNIQUE CONVERSION OF BIT VIKING
LENNART HARALDSON GENERAL MANAGER ALTERNATIVE NOX SOLUTIONS
ENVIRONMENTAL SERVICES WÄRTSILÄ CORPORATION
Marintec China , 29 November - 2 December 2011, Shanghai
1 © Wärtsilä 25 November 2011
How to minimise SOx – the Alternatives
CHANGE TO MGO Run full time on Marine Gas
Oil (MGO).
Convenient No change over ...but expensive
fuel
CONVERT TO LNG Convert engines to run on
gas (LNG).
A solution which also reduces NOx and particulates ...Wärtsilä believes
strongly in marine gas markets
USE SCRUBBERS Install an exhaust gas
cleaning system (scrubber).
Works with high % S fuel. ....works in combination with SCR.....lowest total lifecycle cost
+ + +
3 © Wärtsilä 25 November 2011
Bit Viking - The first LNG conversion project in the world
Classed GL* 100A5 E3 ESP IW NAV-OC Chemical Tanker Type-2 Oil Tanker with Double Hull MC E3 AUT * INERT RP2-50% Ice Class 1A (Swedish/Finnish) Particulars Deadweight 25.000 MT Length over all 177 m Service speed 16 knots
Bit Viking
4 © Wärtsilä 25 November 2011
Bit Viking
Key factors to start Bit Viking LNG Conversion project
Why LNG Conversion?
- Tarbit shipping together with Statoil want to have one of the safest and most enviromental friendly chemical tankers in the world
- To fulfil new IMO’s 2015 regulations concerning SOx emissions - Funding from the NOx Fund - Gas is the future for shipping
5 © Wärtsilä 25 November 2011
Content
1. A brief history of Gas fuelled vessels 2. Bit Viking conversion project 3. Bunkering 4. Conclusions
25 November 2011 6 © Wärtsilä
A brief history of Gas fuelled vessels
Year Vessel Tank size Supplier Class Installed power
Bunker rate
2001 Glutra 2x32 m3 Cryo Ab DNV 2,7 MW 36 m3/h
2003 Viking Energy
230 m3 Cryo Ab
DNV 8,0 MW 95 m3/h
~23 vessels ordered and built with tank size range of 90-250m3 and bunker rate of 36-95 m3/h
In 2011 Wärtsilä entered the market and became technology leader at once
Year Vessel Tank size Supplier Class Installed power
Bunker rate
2011 Bit Viking 2x500 m3 Wärtsilä GL 11,4 MW 430 m3/h
25 November 2011 8 © Wärtsilä
Bit Viking conversion – Fuel handling
Bunker stations
LNG tanks
Tank room and aux room
25 November 2011 9 © Wärtsilä
Bit Viking conversion – the scope
25 November 2011 10 © Wärtsilä
Ship Design Upgrade by Wärtsilä Ship Design Norway 2 x 500m3 LNG Tanks, double wall, type C Gas feed pipes Gas Valve Unit in enclosure Main engine conversion Nitrogen system Exhaust Gas System Modification
Torque meter for power measurement Vessel automation upgrade Propulsion software upgrade Low Voltage system upgrade Gas and fire detection system Fire Fighting upgrade LNG theory and onboard training for customer
Many different “firsts”
L N G LNGPac
First LNGPac delivered by
Wärtsilä First Gas Valve
Unit in enclosure
First Dual-Fuel engine in
Mechanical drive application
First Dual-Fuel engine marine
conversion
First Dual-Fuel “single main
engine” approval
25 November 2011 11 © Wärtsilä
L N G LNGPac
Transportation
Road and barge transportation
25 November 2011 13 © Wärtsilä
2 x 500m3 LNG Tanks, Double wall Type C Weight 225t Lenght 33m Height 7,5m
Lifting operation at yard • Floating crane from Denmark as
yard lifting capacity restricted • Weight of empty tank: 225 ton
• 2,3 times the weight of 6L50DF
Cooling and Bunkering
Courtesy of Skangass
Full scale LNG bunkering from Risavika terminal in Norway
25 November 2011 19 © Wärtsilä
Conclusions
• Time to market in 2 years • Complete gas propulsion train • First LNG conversion • Largest LNG tanks: 2 x 500m3
• Fastest bunkering: 430 m3/h • Superior gas availability: 99%
25 November 2011 21 © Wärtsilä