Dual fuel engine development and designPrepared by Mika Ojutkangas Senior Manager Wrtsil Ship Power MerchantPresented by Y Bui at LNG conference Rotterdam 15 June 2011
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Contents
DF Technology The DF advantage News
The Tarbit project
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Dual-fuel engine - operating principle
Gas mode:Otto principle Low-pressure gas admission Pilot diesel injection
air and gas
air and gas
pilot diesel fuel
Diesel mode:Diesel principle Diesel injection
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Fuel system in cylinder head double walled gas piping Components
Gas valve electrical connection Injection valve electrical connection
Gas manifold Main fuel quill pipe Pilot fuel quill pipe Gas bellows Fine filter Gas valve
Gas nozzle
Pilot fuel common rail 900bar Main fuel injection pipe Main fuel injection pump Inlet valve Twin nozzle injection valve
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Gas fuel system double wall piping
Compared to single-wall gas piping, the requirements to the ships engine room with respect to gas detection, ventilation, etc., become less stringent with double-wall gas piping, making the engine room less complex and thus cheaper to build.
Gas inlet Venting valve
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Wrtsil Dual-Fuel Engine Portfolio20DF 6L20DF 1.0 MW 8L20DF 9L20DF 34DF 6L34DF 9L34DF 12V34DF 16V34DF 20V34DF 50DF 6L50DF 8L50DF 9L50DF 12V50DF 16V50DF 18V50DF 0 Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
1.4 MW 1.6 MW 2.7 MW 4.0 MW 5.4 MW 7.2 MW 9.0 MW 5.85 MW 7.8 MW 8.8 MW 11.7 MW 15.6 MW 17.55 MW 5 10 15Higher output for 60Hz / Main engines
Dual-fuel engine characteristics
20DF
High efficiency Low gas pressure Low emissions, due to: High efficiency Clean fuel
34DF
Lean burn combustion
Fuel flexibility Gas LFO (DF) Bio Fuel HFO (TF)50DF
Double wall gas piping The engine room is a gas safe area
Three engine models Wrtsil 20DF Wrtsil 34DF Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Wrtsil 50DF
Contents
DF Technology The DF advantage News
The Tarbit project
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
DF Gas Trip (GAS -> MDO) on 100% load - instantaneous
No loss of power or speed at sudden transfer from gas to MDO (example 18V50DF, 17.1MW)
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Dual-Fuel advantages
Main advantages of the Dual-Fuel 4-stroke engine compared to SG (spark ignited): Simple mechanical propulsion application Full power available in both fuel operation modes Load application capability Load application capability is equal between dual-fuel and SG Dual-fuel can change to liquid fuel in case instant abnormal high load / unload requirement (no shut-down) Changeover point can be programmed to suit application
Improves safety100 90 Engine 80 speed 70 60 50 40 30 20 10 0
DF & SG Normal load application application
DF change to liquid mode
DF Big instant load application (trips to liquid) SG Instant, abnormal high load application
DF & SG Instant load application
Time
SG Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
DF
The DF vessel concept
The DF engines provide safety and redundancy, inherent reliability of the diesel engine allows a simple installation
Single gas tank and gas feed system allowed
No duplicate (diesel) gensets for main propulsion
LNG
MDO
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Emissions Reduction Future Pathway
Win + Win Emissions & Cost Reduction
Best Available TechnologyParadigm Shift: Market moves to emissions reduction as key n size criteria and away and cost ay from historical efficiencies based on heavy fuel.
Mid Term Both paths are not selected to the same vessel due to SCR PM Trap Other Long Term Fuel Cell, New technology Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Marine Fuel for Emission Control Areas (ECA)?
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
The DF vessel concept
The DF engines will only use gas fuel inside ECA areas Safety and reliability of the traditional diesel engine remain
No SCR unit, Tier III compliantNo SOx Scrubber, No sulphur in fuel
MDO as backup fuel
LNG
MDO
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
The DF vessel concept, outside ECA
The DF engines can be run on HFO outside ECA areas
No SCR unitNo SOx Scrubber
Optional HFO flexibility when allowed when allowed
LNG
MDO/HFO
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
The DF vessel concept, outside ECA
HFO can be used to extend range ensure availability of fuel improve total economy
Optional HFO flexibility when allowed when allowed
LNG
MDO/HFO
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Contents
DF Technology The DF advantage News
The Tarbit project
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Wrtsil is a system integrator
SYSTEM INTEGRATION
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
LNGPacA complete and modularized solution for LNG fuelled ships
F
E
D
A. Storage tanks B. Evaporators C. Dual-Fuel Main engine D. Dual-Fuel Aux engines E. Bunkering station(s) F. Integrated control system Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
A C
B
What is a gas valve unit? The main functions of the GVU: Pressure regulation to the engine, according to engine load. One unit is required per engine. Safety (block valves, filters, inerting and venting)
A GVU is located between the LNG storage system and the engine Max. recommended distance from engine is 10 m
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Installations today
Forced ventilation Single wall fuel gas pipe Double wall fuel gas pipe Gas safe area Gas hazardous area
gas sa e areaAir in *
GVU room, Ex Zone 1 Fuel Gas Tank GVU
Air out
* to double wall fuel gas feed pipe annular space Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Conventional GVU installed in a separate space
A separate GVU room add complexity and installation costs: Require dedicated compartment, including explosion duct from the room Lightning and other equipment has to be Ex Zone 1 compatible Airlock is required between GVU room and surrounding space Recommended maximum distance from GVU to engine 10 m, difficult to achieve in practice
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Gas Valve Unit in enclosure
Main features Can be located in the same engine room still being compliant with IGC and (future) IGF codes. Integrated ventilation system when combined with LNGPac Compact design and easy installation Lower total investment cost compared to a conventional GVU installation Is delivered in a containerized form (plug-and-play concept)
T E
P T
P T
P T
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Installation with GVU enclosure
Forced ventilation Double wall fuel gas pipe Gas safe area Enclosure
Engine room, gas safe area Air in G V U
Saved space: -GVU room -Airlock between the GVU room and the engine room Savings -Less Ex certified equipment -Easy installation at yard, ready module
Fuel Gas Tank
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Contents
DF Technology The DF advantage News
The Tarbit project
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
TARBIT PROJECTVessel delivery date Vessel typology Owner Ship Builder Flag Class 17.09.2007 25'000 dwt Chemical tanker Tarbit Shipping AB Shanghai Edward Shipbuilding Co Ltd Sweden Germanischer Lloyd
20 May 2011
DWT GT Displacement Length p.p. Length o.a. Keel To Mast Height Draught Breadth Extreme Breadth Moulded Speed
24783 ton 17757 ton 33788 ton 166.99 m 177.02 m 44.85 m 9.7 m 26.3 m 26 m 16 kn
Main facts
Vessel owned by Tarbit Shipping AB (Sweden)
Operated under time charterer by Statoil
Sailing in Norwegian waters
Conversion partially financed by Norwegian Nringslivets Hovedorganisasjon (Confederation of Norwegian Business and Industry) Designed by Wrtsil Ship Design (former Skipskonsulent )
Built by Edward Shipbuilding Co Ltd (Hudong-Zhong JV)
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Main engine conversion TODAY2 x W6L46B 5850 kW eachCPP PTO 1500 kW
WRTSIL 8L20 1200 kW
CPP WRTSIL 8L20 1200 kW
PTO 1500 kW
Tomorrow2 x 6LW50DF 5700 kW each
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Many different firsts
First Dual-Fuel engine in Mechanical drive application First LNGPac delivered by Wrtsil First Gas Valve Unit in enclosure
First Dual-Fuel engine marine conversion
First Dual-Fuel single main engine approval
LNGPac LNG
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Scope of conversion Scope of supply Ship Design Engine conversion Gas tanks; LNGPac system (2 x 500m3) Gas piping (single and double walled) Bunkering system Gas supply units Torque meter for power measurement Exhaust system Fire-fighting upgrade Gas detection system Electrical system
Additional NOx measurement during sea trial DF and LNGPac training for personnel
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Placement of equipment
LNG tanks
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Placement of equipment
LNG pipes
Water/Glycol
LNG tanks
Cold box
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Placement of equipment
Ventilation
LNG
GVU
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Placement of equipment
GVU
GVU
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
ReferencesSold engine conversions worldwideProject NameTintrofa Almeida Tearfil Century Power Denizli Cerestar Batamindo I Batamindo II
CountryPortugal Portugal Portugal Pakistan Turkey German Indonesia Indonesia
Year2004 2004 2005 2005 2006 2006 2005 2006 1x 1x 1x 3x 1x 1x 5x 7x
Conversion type12V32 HFO 12V34SG 12V32 HFO 12V32DFc 12V32 HFO 12V32DFc 12V32 HFO 12V32DFc 16V46 HFO 16V50DF 16V46 HFO 16V50DF 18V32 HFO 18V32DFc 18V32 HFO 18V32DFc
StatusFinalized Finalized Finalized Finalized Finalized Finalized Finalized Finalized
Batamindo IIIArenko Crescent Textile Mills Bilag Lucky Cement Lucky Cement Gera Manuara Christino Roha Aksa Takna Cengiz
IndonesiaTurkey Pakistan India Pakistan Pakistan Brazil Brazil Brazil Turkey Peru Turkey
20072006 2007 2007 2008 2008 2009 2009 2009 2009 2009 2010
4x2x 1x 1x 3x 7x 5x 5x 5x 6x 4x 7x
18V32 HFO 18V32DFc18V32 HFO 18V34SG 16V32 HFO 16V32DFc 18V32 HFO 18V32DFc 12V46 HFO 12V50DF 18V32 HFO 18V32DFc 18V46 HFO 18V46GD 18V46 HFO 18V46GD 18V46 HFO 18V46GD 18V46 HFO 18V46GD 18V32 HFO 18V34SG 18V46 HFO 18V50DF
FinalizedFinalized Finalized Finalized Finalized Finalized Ongoing Ongoing Ongoing Ongoing Finalized Ongoing
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Dual-Fuel engines - References
NewordersannouncedSept.2010
Power plant 28 installations 84 engines >640 000 running hours LNG carriers >68 installations 254 engines > 900000 running hours OSV - FPSO 8 installations 28 engines >226 000 running hours
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Viking Line STX Europe
Breaking news !!!!!!
Wrtsil's scope of supply : -four Wrtsil 8L50DF main engines, tunnel thrusters, and two stainless steel fixed pitch, built-up main propellers with complete propeller shaft lines and environmentally sound shaft line seal systems (Press release 03 March 2011) - Two LNGPacs (Press release 21 March 2011)This unique and groundbreaking vessel will be the most environmentally sound large passenger ferry in the world. Thanks to Wrtsil's technology, this ship will meet and even exceed the most stringent known future IMO and EU environmental regulations for maritime applications. Wrtsil's long experience and strong competence in dual-fuel technology, with some 300 such engines already sold, was an important reason for Wrtsil being awarded this order," says Tony hman, Senior Vice President, Marine Operations & Newbuilding, Viking Line Abp Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011
Wrtsil Mika Ojutkangas pres Y Bui 15 06 2011