W 18V46

Wärtsilä 18V46

DE

DE

Cylinder output

kW

1050

1050

Engine speed

rpm

500

514

Engine output

kW

18900

18900

Mean effective pressure

MPa

2.61

2.54

Combustion air system (Note 1)

Flow at 100% load

kg/s

32.1

32.7

Temperature at turbocharger intake, max.

°C

45

45

Temperature after air cooler (TE 601)

°C

40...70

40...70

Exhaust gas system (Note 2)

Flow at 100% load

kg/s

33.0

33.6

Flow at 85% load

kg/s

30.9

31.5

Flow at 75% load

kg/s

28.4

28.8

Flow at 50% load

kg/s

20.4

20.7

Temp. after turbo, 100% load (TE 517)

°C

380

375

Temp. after turbo, 85% load (TE 517)

°C

310

305

Temp. after turbo, 75% load (TE 517)

°C

305

300

Temp. after turbo, 50% load, BP open (TE 517)

°C

320

315

Backpressure, max.

kPa

3.0

3.0

Pipe diameter, min.

mm

1500

1500

Calculated pipe diameter for 35 m/s

mm

1486

1494

Heat balance at 100% load (Note 3)

Jacket water, HT-circuit

kW

2130

2130

Charge air, HT-circuit

kW

3960

3960

Charge air, LT-circuit

kW

1785

1785

Lubricating oil, LT-circuit

kW

2100

2100

Radiation

kW

390

390

Fuel system (Note 4)

Pressure before injection pumps (PT 101)

kPa

800...1000

800...1000

Fuel flow to engine, approx.

m3/h

15.0

15.0

HFO viscosity before engine

cSt

20...24

20...24

MDF viscosity, min.

cSt

2.8

2.8

Max. HFO temperature before engine (TE 101)

°C

135

135

Clean leak fuel quantity, HFO at 100% load

kg/h

13.6

13.6

Clean leak fuel quantity, MDF at 100% load

kg/h

68.0

68.0

Fuel consumption at 100% load

g/kWh

176

176

Fuel consumption at 85% load

g/kWh

172

172

Fuel consumption at 75% load

g/kWh

172

172

Fuel consumption at 50% load

g/kWh

176

176

Lubricating oil system

Pressure before bearings, nom. (PT 201)

kPa

400

400

Pressure after pump, max.

kPa

800

800

Suction ability, including pipe loss, max.

kPa

40

40

Priming pressure, nom. (PT 201)

kPa

80

80

Temperature before bearings, nom. (TE 201)

°C

63

63

Temperature after engine, approx.

°C

78

78

Pump capacity (main), engine driven

m3/h

279

287

Pump capacity (main), electrically driven

m3/h

279

279

Oil flow through engine

m3/h

260

260

Priming pump capacity

m3/h

100

100

Oil volume in separate system oil tank

m3

25.5

25.5

Oil consumption at 100% load

g/kWh

0.5

0.5

Crankcase ventilation flow rate at full load

l/min

2800

2800

Crankcase ventilation backpressure, max.

Pa

200

200

Oil volume in turning device

l

68...70

68...70

Oil volume in speed governor

l

1.9

1.9

High temperature cooling water system

Pressure at engine, after pump, nom. (PT 401)

kPa

250 + static

250 + static

Pressure at engine, after pump, max. (PT 401)

kPa

480

480

Temperature before cylinders, approx. (TE 401)

°C

74

74

Temperature after cylinders, approx. (TE 402)

°C

82

82

Temperature after charge air cooler, nom.

°C

91

91

Capacity of engine driven pump, nom.

m3/h

400

400

Pressure drop over engine, total

kPa

70

70

Pressure drop in external system, max.

kPa

150

150

Pressure from expansion tank

kPa

70...150

70...150

Water volume in engine

m3

2.6

2.6

Low temperature cooling water system

Pressure at engine, after pump, nom. (PT 451)

kPa

250

250

Pressure at engine, after pump, max. (PT 451)

kPa

440

440

Temperature before engine, max. (TE 451)

°C

38

38

Temperature before engine, min. (TE 451)

°C

25

25

Capacity of engine driven pump, nom.

m3/h

400

400

Pressure drop over charge air cooler

kPa

30

30

Pressure drop in external system, max.

kPa

200

200

Pressure from expansion tank

kPa

70 ... 150

70 ... 150

Starting air system

Pressure, nom.

kPa

3000

3000

Pressure at engine during start, min. (20°C)

kPa

1000

1000

Pressure, max.

kPa

3000

3000

Low pressure limit in air vessels

kPa

1800

1800

Consumption per start at 20°C (manual)

Nm3

9.0

9.0

Consumption per start at 20°C, (with slowturn)

Nm3

10.8

10.8

COMMON RAIL

Fuel oil system

Fuel flow to engine, approx.

m3/h

11.2

11.2

MDF viscosity, min.

cSt

2

2

Clean leak fuel quantity, HFO at 100% load

kg/h

6.8

6.8

Clean leak fuel quantity, MDF at 100% load

kg/h

34.0

34.0

Clean leak fuel quantity at stop, max.

l

33

33

Lubricating oil system

Control oil flow, steady

l/min

9.0

9.0

Control oil flow, max. momentary

l/min

110

110

Starting air system

Consumption per start at 20°C (manual)

Nm3

13.5

13.5

Consumption per start at 20°C, (with slowturn)

Nm3

15.3

15.3