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© Wärtsilä Document ID DBAB773337 Revision x.10 PUBLIC
Operation of gas engines for marine
Kaj Portin, M/S Stavangerfjord 10-12.04.2018
1
© Wärtsilä Document ID DBAB773337 Revision x.10 PUBLIC
CONTENT OF THE PRESENTATION
• Gas engines for marine
• Drivers for using gas as fuel for the marine engines
• Wärtsilä engine types for gas operation
2
© Wärtsilä PUBLIC Document ID DBAB773337 Revision x.10
Regulation drivers - Impact on the environment
Acid rains
Smog
NOx
Greenhouse effect
CO2
Acid rains
Sulphur content in fuel
SOx
Direct impact on humans
Locally regulated
Particulate matter
© Wärtsilä PUBLIC Document ID DBAB773337 Revision x.10
Driving trends: fuel price development Marine Diesel Oil Rotterdam
Fuel price [USD/MMBTU]
Source: bunkerworld.com; LNG OneWorld.com
180 Centistoke Rotterdam
380 Centistoke Rotterdam
Henry Hub (Natural Gas)
Marine Gas Oil Rotterdam
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
4/16/2018
02-01-201220-07-201205-02-201324-08-201312-03-201428-09-201416-04-20152006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
© Wärtsilä PUBLIC Document ID DBAB773337 Revision x.10
Where to go?
© Wärtsilä PUBLIC Document ID DBAB773337 Revision x.10
C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11
C12 C13
C14
C15
C16
C17
C18
C22 C25
C50 C70 +
SG
DF
GD
DF = Dual Fuel -Otto process + pilot
-Diesel process
-Fuel: gas + liquid fuels
-low pressure gas
SG = Spark Ignited -Otto process
-Fuel: gas
-low pressure gas
GD = Gas Diesel -Diesel process + pilot
-Fuel: gas + liquid fuels
-high pressure gas
-large fuel mixture ratio
Heavy Naphta
Kerosene
LFO HFO Light
Naphta Bitumen
Asphalt
Inter Gas Oil
Diesel
GD
LPG
Gasoline
Diesel
Hydrocarbon variations in Wärtsilä ICE
DF
LNG
Pipe line gas
Diesel -Diesel process
-Fuel: MDO, HFO
and Crude oil
Low viscosity fuels
© Wärtsilä PUBLIC Document ID DBAB773337 Revision x.10
DF = Dual Fuel -Otto process + pilot
-Diesel process
-Fuel: gas + liquid fuels
-low pressure gas
SG = Spark Ignited -Otto process
-Fuel: gas
-low pressure gas
Hydrocarbon variations in Wärtsilä ICE
Diesel -Diesel process
-Fuel: MDO, HFO
and Crude oil
© Wärtsilä PUBLIC Document ID DBAB773337 Revision x.10
Gas Liquid fuel
SOx (relative)
100%
~0%
NOx (relative)
Gas Liquid fuel
10-15%
100%
Gas Liquid fuel
GWP index as CO2
equivalents 100%
Why lean burn gas engines Low emissions
GWP = Global Warming Potential
Gas Liquid fuel
100%
0-5%
Particulates (relative)
85-95%
© Wärtsilä PUBLIC Document ID DBAB773337 Revision x.10
Why lean burn gas engines High efficiency
100% 85% 75% 50%
Efficiency comparison between Wärtsilä engine operating on different fuel
HFO Diesel DF/Gas
© Wärtsilä PUBLIC Document ID DBAB773337 Revision x.10
POWER PLANT
Application Plants
Urban 57
Industry 37
Mining 4
Oil & Gas 2
Other 3
505 engines
WÄRTSILÄ DF REFERENCES
MERCHANT
Ship type Vessels
LNG Carrier 272
Tanker 29
Container Carrier 10
RoRo/ General Cargo 5
LPG Carrier 4
Bulk Carrier 2
Car Carrier 2
Other 6
1104 engines
OFFSHORE
Unit type Units
OSV 19 Production
Platform 5
FSO 2
FPSO 1
Other 1
92 engines
SPECIALS
Ship type Vessels
IWW 18
Tug 6
Dredger 4
Navy 2
Icebreaker 1
Cable Layer 1
Other 2
73 engines
CRUISE & FERRY
Ship type Vessels
Passenger & Cargo 12
Ferry 9
Passenger 4
96 engines
> 1,870 DF engines, > 22,000,000 running hours
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