W 8L46
Описание двигателя Wärtsilä 8L46
Wärtsilä 8L46 - восьмицилиндровый, рядный, четырехтактный, реверсивный, с турбонаддувом и промежуточным охлаждением дизельный двигатель, с прямым впрыском топлива.
Технические характеристики
|
Wärtsilä 8L46 |
|
ME |
ME |
DE |
DE |
ME |
DE |
DE |
|
Cylinder output |
kW |
975 |
1050 |
1050 |
1050 |
1155 |
1155 |
1155 |
|
Engine speed |
rpm |
500 |
500 |
500 |
514 |
500 |
500 |
514 |
|
Engine output |
kW |
7800 |
8400 |
8400 |
8400 |
9240 |
9240 |
9240 |
|
Mean effective pressure |
MPa |
2.43 |
2.61 |
2.61 |
2.54 |
2.88 |
2.88 |
2.8 |
|
Combustion air system (Note 1) | ||||||||
|
Flow at 100% load |
kg/s |
13.7 |
14.3 |
14.3 |
14.5 |
16.3 |
16.3 |
16.5 |
|
Temperature at turbocharger intake, max. |
°C |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
|
Temperature after air cooler (TE 601) |
°C |
40...70 |
40...70 |
40...70 |
40...70 |
40...70 |
40...70 |
40...70 |
|
Exhaust gas system (Note 2) | ||||||||
|
Flow at 100% load |
kg/s |
14.1 |
14.7 |
14.7 |
14.9 |
16.7 |
16.7 |
16.9 |
|
Flow at 85% load |
kg/s |
12.1 |
13.5 |
13.7 |
14.0 |
15.3 |
15.6 |
15.9 |
|
Flow at 75% load |
kg/s |
10.3 |
11.5 |
12.7 |
12.9 |
13.3 |
14.5 |
14.8 |
|
Flow at 50% load |
kg/s |
6.9 |
7.3 |
9.1 |
9.3 |
8.7 |
12.0 |
12.3 |
|
Temp. after turbo, 100% load (TE 517) |
°C |
380 |
380 |
380 |
375 |
390 |
390 |
375 |
|
Temp. after turbo, 85% load (TE 517) |
°C |
320 |
315 |
310 |
305 |
320 |
315 |
310 |
|
Temp. after turbo, 75% load (TE 517) |
°C |
340 |
330 |
305 |
300 |
320 |
315 |
310 |
|
Temp. after turbo, 50% load, BP open (TE 517) |
°C |
395 |
380 |
320 |
315 |
360 |
280 |
275 |
|
Backpressure, max. |
kPa |
3.0 |
3.0 |
3.0 |
3.0 |
3.0 |
3.0 |
3.0 |
|
Pipe diameter, min. |
mm |
1000 |
1000 |
1000 |
1000 |
1000 |
1000 |
1000 |
|
Calculated pipe diameter for 35 m/s |
mm |
971 |
992 |
992 |
995 |
1065 |
1065 |
1059 |
|
Heat balance at 100% load (Note 3) | ||||||||
|
Jacket water, HT-circuit |
kW |
840 |
867 |
867 |
867 |
933 |
933 |
933 |
|
Charge air, HT-circuit |
kW |
1333 |
1587 |
1587 |
1587 |
1900 |
1900 |
1900 |
|
Charge air, LT-circuit |
kW |
880 |
973 |
973 |
973 |
1100 |
1100 |
1100 |
|
Lubricating oil, LT-circuit |
kW |
1027 |
1080 |
1080 |
1080 |
1133 |
1133 |
1133 |
|
Radiation |
kW |
210 |
220 |
220 |
220 |
240 |
240 |
240 |
|
Fuel system (Note 4) | ||||||||
|
Pressure before injection pumps (PT 101) |
kPa |
800...1000 |
800...1000 |
800...1000 |
800...1000 |
800...1000 |
800...1000 |
800...1000 |
|
Fuel flow to engine, approx. |
m3/h |
6.1 |
6.6 |
6.6 |
6.6 |
7.6 |
7.6 |
7.6 |
|
HFO viscosity before engine |
cSt |
20...24 |
20...24 |
20...24 |
20...24 |
20...24 |
20...24 |
20...24 |
|
MDF viscosity, min. |
cSt |
2.8 |
2.8 |
2.8 |
2.8 |
2.8 |
2.8 |
2.8 |
|
Max. HFO temperature before engine (TE 101) |
°C |
135 |
135 |
135 |
135 |
135 |
135 |
135 |
|
Clean leak fuel quantity, HFO at 100% load |
kg/h |
6.0 |
6.0 |
6.0 |
6.0 |
6.0 |
6.0 |
6.0 |
|
Clean leak fuel quantity, MDF at 100% load |
kg/h |
30.0 |
30.0 |
30.0 |
30.0 |
30.0 |
30.0 |
30.0 |
|
Fuel consumption at 100% load |
g/kWh |
175 |
176 |
176 |
176 |
183 |
183 |
183 |
|
Fuel consumption at 85% load |
g/kWh |
170 |
170 |
172 |
172 |
178 |
179 |
179 |
|
Fuel consumption at 75% load |
g/kWh |
170 |
170 |
172 |
172 |
178 |
180 |
180 |
|
Fuel consumption at 50% load |
g/kWh |
176 |
174 |
176 |
176 |
182 |
188 |
188 |
|
Lubricating oil system | ||||||||
|
Pressure before bearings, nom. (PT 201) |
kPa |
400 |
400 |
400 |
400 |
400 |
400 |
400 |
|
Pressure after pump, max. |
kPa |
800 |
800 |
800 |
800 |
800 |
800 |
800 |
|
Suction ability, including pipe loss, max. |
kPa |
40 |
40 |
40 |
40 |
40 |
40 |
40 |
|
Priming pressure, nom. (PT 201) |
kPa |
80 |
80 |
80 |
80 |
80 |
80 |
80 |
|
Temperature before bearings, nom. (TE 201) |
°C |
63 |
63 |
63 |
63 |
63 |
63 |
63 |
|
Temperature after engine, approx. |
°C |
78 |
78 |
78 |
78 |
78 |
78 |
78 |
|
Pump capacity (main), engine driven |
m3/h |
198 |
198 |
149 |
153 |
198 |
149 |
153 |
|
Pump capacity (main), electrically driven |
m3/h |
145 |
145 |
145 |
145 |
145 |
145 |
145 |
|
Oil flow through engine |
m3/h |
115 |
115 |
115 |
115 |
115 |
115 |
115 |
|
Priming pump capacity |
m3/h |
45 |
45 |
45 |
45 |
45 |
45 |
45 |
|
Oil volume in separate system oil tank |
m3 |
10.5 |
11.3 |
11.3 |
11.3 |
12.5 |
12.5 |
12.5 |
|
Oil consumption at 100% load |
g/kWh |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
|
Crankcase ventilation flow rate at full load |
l/min |
1500 |
1500 |
1500 |
1500 |
1800 |
1800 |
1800 |
|
Crankcase ventilation backpressure, max. |
Pa |
200 |
200 |
200 |
200 |
200 |
200 |
200 |
|
Oil volume in turning device |
l |
8.5...9.5 |
8.5...9.5 |
8.5...9.5 |
8.5...9.5 |
8.5...9.5 |
8.5...9.5 |
8.5...9.5 |
|
Oil volume in speed governor |
l |
1.9 |
1.9 |
1.9 |
1.9 |
1.9 |
1.9 |
1.9 |
|
High temperature cooling water system | ||||||||
|
Pressure at engine, after pump, nom. (PT 401) |
kPa |
250 + static |
250 + static |
250 + static |
250 + static |
250 + static |
250 + static |
250 + static |
|
Pressure at engine, after pump, max. (PT 401) |
kPa |
480 |
480 |
480 |
480 |
480 |
480 |
480 |
|
Temperature before cylinders, approx. (TE 401) |
°C |
74 |
74 |
74 |
74 |
74 |
74 |
74 |
|
Temperature after cylinders, approx. (TE 402) |
°C |
82 |
82 |
82 |
82 |
82 |
82 |
82 |
|
Temperature after charge air cooler, nom. |
°C |
91 |
91 |
91 |
91 |
91 |
91 |
91 |
|
Capacity of engine driven pump, nom. |
m3/h |
180 |
180 |
180 |
180 |
180 |
180 |
180 |
|
Pressure drop over engine, total |
kPa |
70 |
70 |
70 |
70 |
70 |
70 |
70 |
|
Pressure drop in external system, max. |
kPa |
150 |
150 |
150 |
150 |
150 |
150 |
150 |
|
Pressure from expansion tank |
kPa |
70...150 |
70...150 |
70...150 |
70...150 |
70...150 |
70...150 |
70...150 |
|
Water volume in engine |
m3 |
1.35 |
1.35 |
1.35 |
1.35 |
1.35 |
1.35 |
1.35 |
|
Low temperature cooling water system | ||||||||
|
Pressure at engine, after pump, nom. (PT 451) |
kPa |
250 |
250 |
250 |
250 |
250 |
250 |
250 |
|
Pressure at engine, after pump, max. (PT 451) |
kPa |
440 |
440 |
440 |
440 |
440 |
440 |
440 |
|
Temperature before engine, max. (TE 451) |
°C |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
|
Temperature before engine, min. (TE 451) |
°C |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
|
Capacity of engine driven pump, nom. |
m3/h |
180 |
180 |
180 |
180 |
180 |
180 |
180 |
|
Pressure drop over charge air cooler |
kPa |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
|
Pressure drop in external system, max. |
kPa |
200 |
200 |
200 |
200 |
200 |
200 |
200 |
|
Pressure from expansion tank |
kPa |
70 ... 150 |
70 ... 150 |
70 ... 150 |
70 ... 150 |
70 ... 150 |
70 ... 150 |
70 ... 150 |
|
Starting air system | ||||||||
|
Pressure, nom. |
kPa |
3000 |
3000 |
3000 |
3000 |
3000 |
3000 |
3000 |
|
Pressure at engine during start, min. (20°C) |
kPa |
1000 |
1000 |
1000 |
1000 |
1000 |
1000 |
1000 |
|
Pressure, max. |
kPa |
3000 |
3000 |
3000 |
3000 |
3000 |
3000 |
3000 |
|
Low pressure limit in air vessels |
kPa |
1800 |
1800 |
1800 |
1800 |
1800 |
1800 |
1800 |
|
Consumption per start at 20°C (manual) |
Nm3 |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
|
Consumption per start at 20°C, (with slowturn) |
Nm3 |
5.8 |
5.8 |
5.8 |
5.8 |
5.8 |
5.8 |
5.8 |
|
COMMON RAIL | ||||||||
|
Fuel oil system | ||||||||
|
Fuel flow to engine, approx. |
m3/h |
4.6 |
5.0 |
5.0 |
5.0 |
5.7 |
5.7 |
5.7 |
|
MDF viscosity, min. |
cSt |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
|
Clean leak fuel quantity, HFO at 100% load |
kg/h |
3.0 |
3.0 |
3.0 |
3.0 |
3.0 |
3.0 |
3.0 |
|
Clean leak fuel quantity, MDF at 100% load |
kg/h |
15.0 |
15.0 |
15.0 |
15.0 |
15.0 |
15.0 |
15.0 |
|
Clean leak fuel quantity at stop, max. |
l |
15 |
15 |
15 |
15 |
15 |
15 |
15 |
|
Lubricating oil system | ||||||||
|
Control oil flow, steady |
l/min |
4.0 |
4.0 |
4.0 |
4.0 |
4.0 |
4.0 |
4.0 |
|
Control oil flow, max. momentary |
l/min |
110 |
110 |
110 |
110 |
110 |
110 |
110 |
|
Starting air system | ||||||||
|
Consumption per start at 20°C (manual) |
Nm3 |
7.2 |
7.2 |
7.2 |
7.2 |
7.2 |
7.2 |
7.2 |
|
Consumption per start at 20°C, (with slowturn) |
Nm3 |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
Notes:
Note 1 At ISO 3046-1 conditions (ambient air temperature 25°C, LT-water 25°C) and 100% load. Tolerance 5%.
Note 2 At ISO 3046-1 conditions (ambient air temperature 25°C, LT-water 25°C) and 100% load. Flow tolerance 5% and temperature tolerance 15°C.
Note 3 At ISO3046-1 conditions (ambient air temperature 25°C, LT-water 25°C) and 100% load. Tolerance for cooling water heat 10%, tolerance for radiation heat 30%. Fouling factors and a margin to be taken into ac- count when dimensioning heat exchangers.
Note 4 According to ISO 3046/1, lower calorific value 42 700 kJ/kg, without engine driven pumps. Tolerance 5%. Load according to propeller law for mechanical propulsion engines (ME).
Subject to revision without notice.
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