SeongNam Kim, Marketing & Application. X-DF, Lastest development and Service experience

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Leslie May
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1 X-DF, latest development and service experience SeongNam Kim, Marketing & Application 1

2 The first X-DF powered LNG carrier is sailing 180k m 3 LNGC SK Audace, powered by twin-6x62df Running fully on gas X-DF powered fleet is expanding Picture: TradeWinds 2

X-DF for largest container vessels Recent order for 9 x 12X92DF for 22 000 TEU container vessels The largest ships with the smallest ecological footprint!

3 X-DF for largest container vessels Recent order for 9 x 12X92DF for TEU container vessels The largest ships with the smallest ecological footprint! 12X92DF Power kW / 80rpm Bore 920 mm Stroke mm Length mm Weight tons LNG tank m3 (52 x 24 m) Vessel delivery in 2020 onwards Picture: CMA CGM 3

9 x 22 000 TEU C/V contracted with 12X92DF engines Main engine 12X92DF 63840 kw / 80 rpm Aux.

4 9 x TEU C/V contracted with 12X92DF engines Main engine 12X92DF kw / 80 rpm Aux. engines 6 sets, Wärtsilä L34DF LNG tank GTT membrane, Mark lll LNG tank size m3 (52 x 24 m) Roundtrip nm (Suez Canal) Roundtrip duration via Suez Canal approx 11 weeks Estimate vessel contract price around160 musd acc Brokers Vessel delivery in 2020 onwards 4

5 38 LNG-fuelled vessels with X-DF engines RT-flex50DF (5,7 cyl) 4 x 15k dwt Chemical Tanker, Sweden 6 x 1400 TEU Vessel, Germany / Finland 4 x 15k dwt Asphalt Carrier, Canada X52DF (7cyl) 2 x 125k dwt twin-screw Shuttle Tanker, Singapore / Norway X62DF (6,7 cyl) 6 x 114k dwt Aframax Tanker, Russia 2 x 115k dwt Aframax Tanker, Singapore 5 x 114k dwt Aframax Tanker, Russia X92DF (12 cyl) 9 x TEU Container Vessels, France 40 engines on order, hereof 10 delivered, hereof 5 in operation 5

twin-screw, Japan 2 x 174k m3 LNGC, twin-screw, Korea 1 x 180k m3 LNGC, twin-screw, Greece 4 x 180k m3 LNGC, twin-screw, Japan 3 x 174k m3

6 18 LNG Carriers with X-DF engines RT-flex50DF (5 cyl) 1 x 14k m3 Coastal LNGC, China X62DF (6 cyl) 2 x 180k m3 LNGC, twin-screw, Korea 3 x 180k m3 LNGC, twin-screw, Japan X72DF (5,6 cyl) 2 x 174k m3 LNGC, twin-screw, Greece 2 x 174k m3 LNGC, twin-screw, Greece 1 x 174k m3 LNGC, twin-screw, Japan 2 x 174k m3 LNGC, twin-screw, Korea 1 x 180k m3 LNGC, twin-screw, Greece 4 x 180k m3 LNGC, twin-screw, Japan 3 x 174k m3 LNGC, twin-screw, Greece 1 x 174k m3 LNGC, twin-screw, Russia 43 engines on order, hereof 15 delivered, hereof 3 in operation TOTAL: 83 engines 6

7 Contents 1 X-DF, general concept and references 2 New features 3 X-DF Service New experience features (Ott) 7

8 2-stroke Low Pressure DF concept, W-X DF The main merits: Low pressure gas < 16 bar less space less CAPEX, less OPEX less maintenance needed compared to high pressure gas equipment Lean Burn Otto combustion no additional technology no additional CAPEX no OPEX increase... to reach world class emission levels The Principle: Engine operating according to the Otto process Pre-mixed Lean burn technology Low pressure gas admission at mid stroke Ignition by pilot fuel in pre-chamber 8

X-DF low-pressure dual-fuel concept Pre-mixed lean-burn combustion The main merits Low gas pressure < 16bar (design pressure) - Simple and reliable gas supply system - Simple gas sealing - Wide

9 X-DF low-pressure dual-fuel concept Pre-mixed lean-burn combustion The main merits Low gas pressure < 16bar (design pressure) - Simple and reliable gas supply system - Simple gas sealing - Wide selection of proven compressors/ pumps (piston or centrifugal) Lean-Burn Otto combustion means IMO Tier III compliance: - Without additional equipment (EGR/SCR) - Without additional fuel consumption - Without compromised component reliability Scavenging Compression/ gas admission Ignition expansion 9

10 X-DF IMO Tier III NOx compliance X-DF engines are certified to be IMO Tier III NOx compliant The following exceptions are explicitly allowed by IMO, as stated by MEPC1./Circ.854 : Starting, low load operation as well as manoeuvring including reversing on diesel is allowed (see MEPC1./Circ.854, para. 9) If FGSS has a failure, emergency operation on diesel is allowed (see MEPC1./Circ.854, para. 7) Operation on diesel if situation doesn t allow to have gas on board (immediately after vessel building, before/after dry-docking or for specific repairs) is allowed, given that permission is granted by port state in charge (see MEPC1./Circ.854, para. 8) Adobe Acrobat Document EPA has released an FAQ document, where the application of the above mentioned principles are confirmed: Adobe Acrobat Document X-DF engines are fully IMO Tier III NOx compliant without additional NOx reduction devices SCR may be optionally applied for additional fuel flexibility (operation on liquid fuel) in TierIII NECAs 10

11 Contents 1 X-DF, general concept and references 2 New features 3 X-DF Service New experience features (Ott) 11

X-DF new features New features and functions are continuously being developed and implemented Firing pressures [bar] DCC activated Min. ratio ~2.5% Engine load [%] Max.

DCC Under tropical conditions with DCC Features are related to: Engine performance improvements Operational flexibility Increase of maintenance friendliness Increased

module LVOC tank Examples: Dynamic Combustion Control DCC Fuel sharing Volatile Organic Compounds (VOC) as a fuel Integrated Gas Pressure Regulation igpr WinGD Engine

12 X-DF new features New features and functions are continuously being developed and implemented Firing pressures [bar] DCC activated Min. ratio ~2.5% Engine load [%] Max. ratio Worst condition Marginal condition Diesel share 100 Maximum achievable power Area where higher output can be achieved with new spec: Under ISO conditions without DCC Under tropical conditions with DCC Features are related to: Engine performance improvements Operational flexibility Increase of maintenance friendliness Increased reliability Diesel ratio [% energy] Operating window for fuel sharing Engine load [%] 0 Total fuel amount Gas Liquid Engine power % LVOC recovery module LVOC tank Examples: Dynamic Combustion Control DCC Fuel sharing Volatile Organic Compounds (VOC) as a fuel Integrated Gas Pressure Regulation igpr WinGD Engine Diagnostics System EDS Legend of colours: Blue: Green: Red: Yellow: High BN Cyl. Oil Low BN Cyl. Oil Air Feed pipe to Lubricating Oil Pump Lube oil changeover valve 12

13 Contents 1 X-DF, general concept and references 2 New features 3 X-DF Service New experience features (Ott) 13

Korea) 8 sets 5X72DF (in Korea) IMO EIAPP issued proving compliance with IMO Tier III NOx

14 X-DF shop trials Shop trials Shop trials successfully completed: 28 engines passed FAT and are partly delivered to shipyards: 10 sets 5RT-flex50DF (in China & Japan) 10 sets 6X62DF (in Korea) 8 sets 5X72DF (in Korea) IMO EIAPP issued proving compliance with IMO Tier III NOx limits in gas operation Type approval testing (TAT) successfully completed on RT-flex50DF, X62DF & X72DF 14

Ship types: 14k m 3 coastal LNGC 15,000 dwt chemical tanker 14,000 dwt asphalt

15 X-DF service experience First X-DF sea trials Sea trials of the first eight X-DF powered vessels successfully completed: Locations: China, Turkey and Korea Ship types: 14k m 3 coastal LNGC 15,000 dwt chemical tanker 14,000 dwt asphalt carrier 180k m 3 LNGC Engine types: RT-flex50DF, X62DF Pictures: Avic, Terntank 15

8 000 running hours accumulated (as of October 2017), running about 80% on gas All four vessels of the series

16 RT-flex50DF service experience First X-DF powered vessels in service M/T Ternsund in regular service in the Baltic / North Sea since beginning of August 2016 Approx running hours accumulated (as of October 2017), running about 80% on gas All four vessels of the series are in operation M/T Damia Desgagnes in service on the Great Lakes, North America Three more vessels coming Picture: Besiktas Shipyard Picture: Port of Gothenburg 16

RT-flex50DF service experience Gas leakage between pilot injector and prechamber Combustion gases have passed sealing between pilot valve

with inclined surfaces introduced with improved sealing properties Pressure relief hole to avoid high pressure impacting upper O-ring

17 RT-flex50DF service experience Gas leakage between pilot injector and prechamber Combustion gases have passed sealing between pilot valve and prechamber (sealed by sealing ring) and deteriorated upper O-rings sealing against lubricating oil entrance Solution: New sealing rings with inclined surfaces introduced with improved sealing properties Pressure relief hole to avoid high pressure impacting upper O-ring condition New tightening instruction, bolt and spring cage design for tight and reliable pilot injector installation Solution validated case closed 17

lubrication only A number of scuffing issues seen, analysis and tests ongoing: Initially excessively fast loading ramps with CPP settings adjusted to

18 RT-flex50DF service experience Piston running Inspection at 2144 rhs. Engines running on BN15-25 cylinder lube oil, little neutralization needed as no sulphur in fuel gas: Potential for low feed rates, as oil is needed for lubrication only A number of scuffing issues seen, analysis and tests ongoing: Initially excessively fast loading ramps with CPP settings adjusted to regular spec. Improved tuning of scavenge air pressure for combinator mode operation (CPP) Improved cooling of combustion chamber components Issues are limited to some engines only, not all RT-flex50DF engines affected No new cases seen recently 18

Vessel in commercial service since August approx.

19 First LNCG with X-DF 180k m3 SK Audace with twin-6x62df First X-DF twin-propulsion installation Sea trials successfully completed in July 2017 without any major issues Vessel in commercial service since August approx running hours accumulated as of Oct. 22 nd Vessel fully running on gas since first gas loading, excellent gas mode availability 19

SK Audace Maiden voyage route 20 DATE Port Remark July 28, 2017 Samsung shipyard, Korea Ship delivered August 08, 2017 Singapore anchorage For bunkering August 21~22, 2017 Ras Laffan, Qatar- LNG port

20 SK Audace Maiden voyage route 20 DATE Port Remark July 28, 2017 Samsung shipyard, Korea Ship delivered August 08, 2017 Singapore anchorage For bunkering August 21~22, 2017 Ras Laffan, Qatar- LNG port Gas Cargo loading September 22~23, 2017 SINES, Portugal - LNG port For discharge October 6, 2017 Sabine pass, USA - LNG port Cargo loading October 23, 2017 BAHIA, Brazil Cargo discharge November Aliaga Turkey Cargo Discharge

21 SK Audace Running hours as of November 22: Engine Total R/H R/H After ship delivery R/H after gas loading R/H Gas mode Gas R/H % after gas loading P % P % Diesel mode running after gas loading : 8 hours for maneuvering only! 21

SK Audace Main issues on maiden voyage Unstable signal of shaft power meter: leading to a

supplier Pilot fuel pressure control: fuel pressure sometimes exceeding alarm level Flow

fuel filters: contamination of MGO resulting in frequent need for changing filter

22 SK Audace Main issues on maiden voyage Unstable signal of shaft power meter: leading to a number of gas trips due to control/monitoring failures under review with yard/equipment supplier Pilot fuel pressure control: fuel pressure sometimes exceeding alarm level Flow control valve on pilot fuel pump replaced, single case only Frequent clogging of pilot fuel filters: contamination of MGO resulting in frequent need for changing filter cartridge issue seems related to ancillary system layout Mostly non GAS items failure as sensor fail!! 22

23 Maiden voyage key data analyse power gas M/E inlet 80% 8 bar 70% 7 bar 60% 6 bar power [%] 50% 40% 30% 20% p_gas M/E_in [bar(g)] 5 bar 4 bar 3 bar 2 bar 10% engine 1 engine 2 0% bar engine 1 engine 2 0 bar speed [kn] 20 Kn 18 Kn 16 Kn 14 Kn 12 Kn 10 Kn 8 Kn 6 Kn 4 Kn 2 Kn speed - Engine power up to 70 % - Vessel speed between 16 and 18 kn. - Gas pressure at engine inlet (after GVU) always below 7 bar inlet pressure of below 9 bar at GVU is sufficient for running service speed 0 Kn

24 Maiden voyage key data analyse 80% 75% 70% 65% 60% 55% 50% 45% 40% 35% 30% Engine Load 8.5 bar 8 bar 7.5 bar 7 bar 6.5 bar 6 bar 5.5 bar 5 bar 4.5 bar 4 bar Gas M/E inlet 19 Kn 18 Kn 17 Kn 16 Kn 15 Kn 14 Kn 13 Kn 12 Kn P1 P2 Ship Speed P1 P2 - Engine power up to 94 % incl. October - Vessel speed between 14 and 20.5 kn incl. October - Gas pressure at engine inlet (after GVU) always below 7 bar inlet pressure of below 9 bar at GVU is sufficient for running service speed 24

Thank you! Marcel Ott R&D, Dual Fuel Technology Development marcel.

25 Thank you! Marcel Ott R&D, Dual Fuel Technology Development M/T Ternsund, powered by a 5RT-flex50DF Picture: Terntank 25

5 TH CIMAC CASCADES, BUSAN MARCEL OTT

5 TH CIMAC CASCADES, BUSAN MARCEL OTT 23.10.2014 1 Wärtsilä 23 October 2014 Wärtsilä 2s Dual Fuel - 5th CIMAC CASCADES Development drivers - environment LOCAL LOCAL NO x Acid rains Tier II (2011) Tier