2-takt gassmotorer for store havgående skip

Transcription

1 2-takt gassmotorer for store havgående skip < 1 >

2 Mr Diesel vs Mr Otto Diesel to Dual Fuel Combustion Mr Diesel s Process Fuel in cylinder before gas Diesel process maintained Power remain the same Load response unchanged No pre-ignition / no knocking Insensitive to gas mixture Negligible methane slip High-pressure gas injection NO x reduction to Tier III level by EGR and / or SCR ME-GI retrofitable on ME-C. Mr Otto s Process Gas in cylinder before fuel Otto process gas-air pre-mix Power reduction needed Load ramp needed Pre-ignition / knocking risk Gas mixture important Methane slip significant Low-pressure gas injection Lower NO x expected. ME-GI is a Two-stroke Diesel Engine (LS/OG) < 2 >

3 45 LNG Carriers Equipped with Two-stroke GI Retrofit is Possible Quantum: 9,000 teu container ship LNG tanks ME-GI main engine Gas supply system $?? Triality: 300,000 dwt VLCC < 3 >

4 All ME Engines Available as Dual Fuel Marine Engine List Tier II < 4 >

5 G engine Tier II Reference list Firm orders and projects Firm orders No. of Engine Engine Mk. Ship Type Owner Builder Country ships delivery date Yard 2 7 G 80 ME-C 9.2 VLCC ALMI Tankers S.A. Hyundai Korea DSME 2 6 G 80 ME-C 9.2 Container Thenamaris Hyundai Korea HSHI 2 7 G 80 ME-C 9.2 VLCC AET Shipmanagement Doosan Korea DSME 2 6 G 80 ME-C 9.2 Container Evalend Hyundai Korea 2013-March Zhejiang Ouhua Shipyard 2 7 G 80 ME-C 9.2 VLCC Angelicoussis CMD / Hyundai China/ Korea / SWS 1 6 G 60 ME-C Densa Hyundai Korea HHI 7 G 80 ME-C 9.2 VLCC - Hitachi Japan Universal 1 6 G 70 ME-C 9.2 Suezmax Chevron - Korea Samsung 2 5 G 60 ME-C 9.2 Tanker Sun Enterprises Ltd. HHI-EMD Korea 2013-July Hyundai Heavy Industries No. of ships Projects Engine Mk. Ship Type Owner Builder Country Engine delivery date Yard 6 G 60 ME-C Pan Ocean STXDAL China STX Dalian 6 G 50 ME-B Dalian China G 50 ME-B STX China STX 7 G 80 ME-C 9.2 VLCC - Dalian China G 80 ME-C 9.2 Shuttle Tanker - - Korea G 70 ME-C 9.2 Shuttle Tanker - - Korea G 80 ME-C 9.2 VLCC - Kawasaki Japan - Kawasaki Heavy Industries 6 G 50 ME-B Hudong China G 50 ME-B Doosan Korea - Deasun shipbuilding 7 G 80 ME-C STX Korea STX Offshore & Shipbuilding 6 G 60 ME-C Hudong China - - First TAT for G engine is end of January

6 MAN B&W ME-GI/ME-LGI Engines Powered by NG, HFO, MDO, LPG, MeOH or DME Simple modifications enable two-stroke gas injection Proven engine design High fuel efficiency 50% High fuel flexibility High reliability 6

7 ME-GI Design Leakage Control Gas supply in ventilated and monitored double-wall pipes No gas leakage to engine room HC - sensor Ventilation System Ventilation air flow sensor Ventilation air flow sensor HC-sensor < 7 >

8 ME-GI Design updates Overview More compact design introduced < 8 >

9 ME-GI Design updates Easy maintenance All connections through adapter block Gas inlet Gas outlet Hydraulic oil Sealing oil Hydraulic oil drain Oil drain window/gas-valve Low pressure oil Connector block with pipes, remains on the engine during cylinder cover dismantling < 9 >

10 ME-GI Design updates Hydraulic and sealing oil pipes Pipes designed for easy maintenance Pipes: Blue: Hydraulic oil Red: Sealing oil Light blue: Oil drain White: Gas detection Purple: Low pressure oil supply < 10 >

11 Injection principle

12 ME-GI Results Methane slip & GWP Methane slip & GWP: 2-stroke ME-GI engines 0.2 g/kwh % load GWP reduced by approx. 20% for ME-GI Global-warming potential (GWP) is a relative measure of how much heat a greenhouse gas traps in the atmosphere. It compares the amount of heat trapped by a certain mass of the gas in question to the amount of heat trapped by a similar mass of carbon dioxide. GWP is expressed as a factor of carbon dioxide (whose GWP is standardized to 1). GWP for methane is 72 for a 20 year interval and 25 for a 100 year interval. < 12 >

13 ME-GI Results Engine stability: cycle-to-cycle < 13 >

14 Fuel Index ME-GI Gas Fuel Mode Port to port in gas mode Fuel oil only mode Operation profile as conventional engine Gas fuel operation mode No methane slip No knocking problems Insensitive to gas fuel Unchanged load response 100% 90% 80% 70% 60% 50% 40% % Total % Pilot Gas Fuel 30% 20% 10% 0 Pilot oil Engine Load (%SMCR) % 100

15 Specific NOx (g/kwh) ME-GI Results SO x and NO x technology Tier III SO x technology SO x reduction with Exhaust Gas Scrubbers Engine operation on low sulphur fuels % load 75% load % load % load NTE NOx IMO Tier 3 cycle value Oxygen conc. in Scav.Rec (wet, vol %) Tier III NO x technology NO x reduction with EGR (Exhaust Gas Recirculation) NO x reduction with SCR (Selective Catalyst Reduction) < 15 >

16 Tier III NO x Technologies Which method to select? EGR system, prevents NO x formation SCR system, reduces NO x formation < 16 >

17 ME-GI and IMO NOx Tier III Exhaust Gas Recirculation (EGR) ME-GI + EGR/SCR = Tier III in Gas Mode + Tier III in Fuel Mode = Full Fuel Flexibility

18 FGS System 8S90ME-C8.2-GI Output : kw Example: 8S90ME-C8.2-GI - Output: 45,760 kw HP Cryogenic pump: 5,600 kg/hr. & 200 kw Less than 0.5% efficiency reduction < 18 >

19 HP Pump and Vaporizer from Cryostar High-pressure pump HPP3 60/110 Triplex < 19 >

20 1 m 0.5 m HP Pump and Vaporizer from Cryostar High-pressure Vaporizer Heliflow Previously supplied for LN2 converter < 20 >

21 Dual Fuel Gensets available 2014 Technical Data Marine L+V35/44DF Bore: 350 mm, Stroke: 440 mm Speed r/min mep bar L35/44DF 3,180 3,060 7L35/44DF 3,710 3,570 8L35/44DF 4,240 4,080 9L35/44DF 4,770 4,590 10L35/44DF 5,300 5,100 12V35/44DF 6,360 6,120 14V35/44DF 7,420 7,140 16V35/44DF 8,480 8,160 18V35/44DF 9,540 9,180 20V35/44DF 10,600 10,200 Consumption MCR 100% 85% Specific fuel oil consumption (HFO)* 187 g/kwh 186 g/kwh Heat Rate ** Specific lube oil consumption 0.5 g/kwh kw 7,700 kj/kwh * Diesel or HFO fuel operation, with attached pumps (LO, LT and HT) with +5% tolerance ** Gas operation (including pilot fuel) kw LHV min = 32,800 kj/m 3 (STP) < 21 >

22 Conclusion ME-GI for gas fuelled ships Over all efficiency. Operational cost Emission Emission Load response Pilot oil amount Gas operation Auto Tuning Gas Supply system Engine delivery Better Depending on gas fuel price Fulfilling Tier II /alt. Tier III with EGR/SCR 95% reduction on SOx Unchanged during gas operation 5% at 100% Load, reduced to 2% at 10 % load Port to port in gas mode Available 6 different solutions available Depend on project. Beginning of 2013 is possible

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