Environmental challenges

Today's Standard Engine
Mechanical output: 48.5% Exh..gas 25.1%
Charge air cooling: 17.8% Jacket water cooling: 4.8% Lub. oil cooling: 3.2% Radiation: 0.6%
EGR installation on Alexander Maersk
Scrubber S bb
Workshop p
Cooler
© MAN Diesel & Turbo SE
Gas pipes
3rd Annual ME ShipTech Dubai 2010 , Presented by Henrik Rolsted 13
SECA
CARB Phase 1
2010 Year
CARB Phase 2
2015 2020 2025
© MAN Diesel & Turbo SE
3rd Annual ME ShipTech Dubai 2010 , Presented by Henrik Rolsted
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MAN B&W 2-stroke Marine Engine Leading today's Environmental Challenges today s
Ship construction date Before 2000 2000 to 2010 2011 to 2015 After 2016
© MAN Diesel & Turbo SE
3rd Annual ME ShipTech Dubai 2010 , Presented by Henrik Rolsted
© MAN Diesel & Turbo SE
3rd Annual ME ShipTech Dubai 2010 , Presented by Henrik Rolsted
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MAN B&W 2-stroke Marine Engine Controlling NOx by EGR
“EGR”, Exhaust Gas recirculation, as being tested: , , g
© MAN Diesel & Turbo SE
3rd Annual ME ShipTech Dubai 2010 , Presented by Henrik Rolsted
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MAN B&W 2-stroke Marine Engine Leading today's Environmental Challenges today s
© MAN Diesel & Turbo SE
3rd Annual ME ShipTech Dubai 2010 , Presented by Henrik Rolsted
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MAN B&W 2-stroke Marine Engine Leading today's Environmental Challenges today s The environmental cost of transportation
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MAN B&W 2-stroke Marine Engine Leading today's Environmental Challenges today s
MEPC 57 IMO & CARB Fuel-Sulfur Content Limits
Equivalent methods may be used as alternative
பைடு நூலகம்
© MAN Diesel & Turbo SE
3rd Annual ME ShipTech Dubai 2010 , Presented by Henrik Rolsted
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MAN B&W 2-stroke Marine Engine Controlling NOx by EGR
© MAN Diesel & Turbo SE
Countermeasures
None None Modify material to more corrosion resistance
© MAN Diesel & Turbo SE
3rd Annual ME ShipTech Dubai 2010 , Presented by Henrik Rolsted
MAN B&W 2-stroke Marine Engine Leading today's Environmental Challenges
“The Environmental Challenges”
How t deal with emission restrictions. H to d l ith i i t i ti By the use of clean fuel and/or by green technologies?
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MAN B&W 2-stroke Marine Engine Leading today's Environmental Challenges today s
•SOx gasses, is claimed contributing the to general acidification of the environment •PM is claimed causing allergy, lung diseases, etc... •NOx gasses is claimed causing lung deceases and several death per year. •CO2, being a green house gas, is claimed contributing to the global warming •30% of the maritime emission is claimed reaching shore site
Global: 4.5 → 3.5 → 0.5
5 4.5 4 3.5 Sulfur % 3
SECA: 1.5 → 1.0 → 0.1 CARB MGO: 1,5 → 1.5 → 0.1 (DMA)
Global
CARB MDO: 2.0 → 0.5 → 0.1 (DMB)
2.5 2
1.5 1 0.5 0 2000 2005
12,985 2,000 , 350 860 14 30 tons Nitrogen tons Oxygen yg tons H2O tons CO2 tons SO2 tons NOx
(figures from one vessel per 24 hour):
60,000 kW 24 k t knots
Energy in fuel: 100%
© MAN Diesel & Turbo SE
3rd Annual ME ShipTech Dubai 2010 , Presented by Henrik Rolsted
MAN B&W 2-stroke Marine Engine Controlling NOx
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MAN B&W 2-stroke Marine Engine Leading today's Environmental Challenges today s
IMO NOx reduction plan: Applicable limit (within ECA*) ECA ) uncontrolled Tier I (17.0g/kWh) Tier II (14.4g/kWh) Tier III (3.4g/kWh*)
MAN B&W 2-stroke Marine Engine Controlling Tier III NOx by EGR
Tier III EGR engine programme
Tier III EGR prototype service testing p yp g
© MAN Diesel & Turbo SE
• Water cleaning by Alpha
Laval Ecostreamer.
© MAN Diesel & Turbo SE
3rd Annual ME ShipTech Dubai 2010 , Presented by Henrik Rolsted
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MAN B&W 2-stroke Marine Engine Controlling NOx by EGR
MAN B&W 2-stroke Marine Engine Controlling Tier III NOx by EGR
Tier III EGR Engine Integration:
© MAN Diesel & Turbo SE
3rd Annual ME ShipTech Dubai 2010 , Presented by Henrik Rolsted
MAN Diesel.
•C Cooler housing and
WMC developed by MAN Diesel.
• Cooler element
nanocoated developed by Vestas A/S.
• Blower wheel and
casing designed by MAN Diesel.
3rd Annual ME ShipTech Dubai 2010 , Presented by Henrik Rolsted
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MAN B&W 2-stroke Marine Engine Controlling NOx by EGR
EGR on Alexander Maersk:
• Scrubber developed by
NOx can be reduced by means of: EGR, Exhaust gas recirculation, due to higher heat capacity and lower O2 SAM and WIF, due to water vapour in combustion chamber increases heat capacity
© MAN Diesel & Turbo SE
3rd Annual ME ShipTech Dubai 2010 , Presented by Henrik Rolsted
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MAN B&W 2-stroke Marine Engine Controlling NOx
Historic view of SFOC and CO2 versus NOx
3rd Annual ME ShipTech Dubai 2010 , Presented by Henrik Rolsted
MAN B&W 2-stroke Marine Engine Controlling NOx by EGR
Service experience from 2 month EGR test on Alexander Maersk:
Cylinder C li d condition diti good and unchanged
Scrubber water cleaning turbidity in accordance with criteria's.
Deposits of Iron Ironand Sodiumsulfate on M/E cooler.
Corrosion of EGR blower, drainers and EGR cooler side walls.
© MAN Diesel & Turbo SE 3rd Annual ME ShipTech Dubai 2010 , Presented by Henrik Rolsted
240 7 13,000 13 000 3,000 1
tons HFO tons Sulphur tons Nitrogen tons Oxygen tons Lube Oil
Controlling Nox and SOx
© MAN Diesel & Turbo SE
3rd Annual ME ShipTech Dubai 2010 , Presented by Henrik Rolsted 3 dA l ME Shi T h D b i 2010 P t d b H ik R l t d