3.3
Wärtsilä 8L20
ME
SCR
mode
ME
SCR
mode
AE/DE
SCR
mode
AE/DE
SCR
mode
ME
Tier 2
mode
ME
Tier 2
mode
AE/DE
Tier 2
mode
AE/DE
Tier 2
mode
Wärtsilä 8L20
200
200
200
185
200
200
200
185
kW
Cylinder output
1000
1000
1000
900
1000
1000
1000
900
RPM
Engine speed
1600
1600
1600
1480
1600
1600
1600
1480
kW
Engine output
2.73
2.73
2.73
2.8
2.73
2.73
2.73
2.8
MPa
Mean effective pressure
Combustion air system (Note 1)
3.02
3.02
3.02
2.77
3.02
3.15
3.02
2.77
kg/s
Flow at 100% load
45
45
45
45
45
45
45
45
°C
Temperature at turbocharger intake, max.
50...70
50...70
50...70
50...70
50...70
50...70
50...70
50...70
°C
Temperature after air cooler (TE601)
Exhaust gas system (Note 2)
3.11
3.11
3.11
2.85
3.11
3.11
3.11
2.85
kg/s
Flow at 100% load
2.82
2.69
2.82
2.48
2.85
2.77
2.85
2.62
kg/s
Flow at 85% load
2.53
2.4
2.53
2.18
2.56
2.4
2.56
2.33
kg/s
Flow at 75% load
1.8
1.61
1.8
1.63
1.8
1.61
1.8
1.63
kg/s
Flow at 50% load
365
370
365
370
365
370
365
370
°C
Temperature after turbocharger, 100% load
(TE517)
340
340
340
340
335
340
335
335
°C
Temperature after turbocharger, 85% load
(TE517)
340
350
340
340
335
350
335
335
°C
Temperature after turbocharger, 75% load
(TE517)
355
385
355
355
355
385
355
355
°C
Temperature after turbocharger, 50% load
(TE517)
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
kPa
Backpressure, max.
451
453
451
433
451
453
451
433
mm
Calculated pipe diameter for 35 m/s
Heat balance (Note 3)
325
333
330
316
325
333
330
316
kW
Jacket water, HT-circuit
535
535
535
489
535
535
535
489
kW
Charge air, LT-circuit
260
260
260
245
260
260
260
245
kW
Lubricating oil, LT-circuit
66
66
67
63
66
66
66
62
kW
Radiation
Fuel system (Note 4)
700±50
700±50
700±50
700±50
700±50
700±50
700±50
700±50
kPa
Pressure before injection pumps (PT101)
1.92
1.92
1.92
1.73
1.92
1.92
1.92
1.73
m
3
/h
Engine driven pump capacity (MDF only)
1.38
1.38
1.38
1.28
1.38
1.38
1.38
1.27
m
3
/h
Fuel flow to engine (without engine driven
pump), approx.
16... 24
16... 24
16... 24
16... 24
16... 24
16... 24
16... 24
16... 24
cSt
HFO viscosity before engine
140
140
140
140
140
140
140
140
°C
Max. HFO temperature before engine (TE101)
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
cSt
MDF viscosity, min.
45
45
45
45
45
45
45
45
°C
Max. MDF temperature before engine (TE101)
196
196
196
195
196
196
196
195
g/kWh
Fuel consumption at 100% load
195
193
195
194
193
191
193
192
g/kWh
Fuel consumption at 85% load
195
192
195
194
194
191
193
192
g/kWh
Fuel consumption at 75% load
Wärtsilä 20 Product Guide - a13 - 6 September 2016
3-7
3. Technical Data
Wärtsilä 20 Product Guide
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