WÄRTSILÄ WARTSILA 20, Product Manual

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3.4 Wärtsilä 9L20
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 9L20
200 200 200 185 200 200 200 185
kW Cylinder output
1000 1000 1000 900 1000 1000 1000 900 RPM Engine speed
1800 1800 1800 1665 1800 1800 1800 1665 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)
3.45 3.47 3.45 3.21 3.47 3.62 3.47 3.18 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)
3.55 3.57 3.55 3.3 3.57 3.57 3.57 3.27 kg/s Flow at 100% load
3.14 3.09 3.14 2.84 3.27 3.18 3.27 3.01
kg/s Flow at 85% load
2.8 2.75 2.8 2.49 2.94 2.76 2.94 2.67
kg/s Flow at 75% load
2.0 1.67 2.0 1.76 2.06 1.85 2.06 1.87
kg/s Flow at 50% load
350 355 350 355 345 355 345 355
°C Temperature after turbocharger, 100% load
(TE517)
340 340 340 340 320 320 320 320
°C Temperature after turbocharger, 85% load
(TE517)
340 340 340 340 320 330 320 320
°C Temperature after turbocharger, 75% load
(TE517)
364 400 364 364 340 350 340 340
°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.
476 479 476 461 476 479 476 459
mm Calculated pipe diameter for 35 m/s
Heat balance (Note 3)
375 375 375 350 375 375 375 356
kW Jacket water, HT-circuit
607 610 607 554 610 610 610 557
kW Charge air, LT-circuit
270 270 270 250 270 270 270 254
kW Lubricating oil, LT-circuit
76 74 76 69 74 74 74 68
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)
1.55 1.55 1.55 1.44 1.55 1.55 1.55 1.43 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)
196 196 196 196 196 196 195 195 g/kWh Fuel consumption at 100% load
196 193 196 194 193 191 192 191
g/kWh Fuel consumption at 85% load
196 192 196 194 193 190 193 192
g/kWh Fuel consumption at 75% load
3-10 Wärtsilä 20 Product Guide - a13 - 6 September 2016
Wärtsilä 20 Product Guide 3. Technical Data