W 12V32
Описание двигателя Wärtsilä 12V32
Wärtsilä 12V32 четырехтактный, нереверсивный, V-образный, 12-ти цилиндровый дизельный двигатель с турбонадувом и промежуточным охлаждением, с прямым впрыском топлива
Технические характеристики
Wärtsilä 12V32 IMO Tier 2 |
AE/DE |
AE/DE |
ME |
AE/DE |
AE/DE |
ME | |
Engine speed |
RPM |
720 |
750 |
750 |
720 |
750 |
750 |
Cylinder output |
kW/cyl |
480 |
500 |
500 |
550 |
580 |
580 |
Engine output |
kW |
5760 |
6000 |
6000 |
6600 |
6960 |
6960 |
Mean effective pressure |
MPa |
2,49 |
2,49 |
2,49 |
2,85 |
2,88 |
2.88 |
Combustion air system (Note 1) | |||||||
Flow at 100% load |
kg/s |
9,86 |
10,44 |
10,41 |
12,4 |
13,13 |
13.13 |
Temperature at turbocharger intake, max. |
°C |
45 |
45 |
45 |
45 |
45 |
45 |
Air temperature after air cooler (TE 601) |
°C |
55 |
55 |
55 |
55 |
55 |
55 |
Exhaust gas system (Note 2) | |||||||
Flow at 100% load |
kg/s |
10,17 |
10,76 |
10,76 |
12,75 |
13,5 |
13.5 |
Flow at 85% load |
kg/s |
9,65 |
10,2 |
9,92 |
11,06 |
11,97 |
11.83 |
Flow at 75% load |
kg/s |
8,7 |
9,23 |
8,7 |
9,72 |
10,46 |
10.32 |
Flow at 50% load |
kg/s |
6,3 |
6,53 |
7,43 |
6,81 |
7,37 |
8.1 |
Temperature after turbocharger, 100% load (TE 517) |
°C |
384 |
379 |
379 |
360 |
360 |
360 |
Temperature after turbocharger, 85% load (TE 517) |
°C |
331 |
325 |
331 |
340 |
335 |
335 |
Temperature after turbocharger, 75% load (TE 517) |
°C |
330 |
325 |
350 |
348 |
345 |
355 |
Temperature after turbocharger, 50% load (TE 517) |
°C |
354 |
345 |
317 |
380 |
380 |
340 |
Backpressure, max. |
kPa |
3,0 |
3,0 |
3,0 |
3,0 |
3,0 |
3.0 |
Calculated pipe diameter for 35m/s |
mm |
828 |
848 |
848 |
910 |
936 |
936 |
Heat balance (Note 3) | |||||||
Jacket water, HT-circuit |
kW |
949 |
1008 |
1008 |
904 |
960 |
960 |
Charge air, HT-circuit |
kW |
915 |
960 |
960 |
1300 |
1460 |
1460 |
Charge air, LT-circuit |
kW |
728 |
795 |
795 |
830 |
880 |
880 |
Lubricating oil, LT-circuit |
kW |
690 |
728 |
728 |
777 |
794 |
794 |
Radiation |
kW |
170 |
170 |
170 |
170 |
170 |
170 |
Fuel system (Note 4) | |||||||
Pressure before injection pumps (PT 101) |
kPa |
700±50 |
700±50 |
700±50 |
700±50 |
700±50 |
700±50 |
Fuel flow to engine, approx. |
m³/h |
5,8 |
6,1 |
6,1 |
6,6 |
7,0 |
7.0 |
HFO viscosity before engine |
cSt |
16...24 |
16...24 |
16...24 |
16...24 |
16...24 |
16...24 |
HFO temperature before engine, max. (TE 101) |
°C |
140 |
140 |
140 |
140 |
140 |
140 |
MDF viscosity, min |
cSt |
2,0 |
2,0 |
2,0 |
2,0 |
2,0 |
2.0 |
MDF temperature before engine, max. (TE 101) |
°C |
45 |
45 |
45 |
45 |
45 |
45 |
Fuel consumption at 100% load |
g/kWh |
182 |
183 |
183 |
182 |
183 |
183 |
Fuel consumption at 85% load |
g/kWh |
180 |
180 |
180 |
180 |
180 |
180 |
Fuel consumption at 75% load |
g/kWh |
180 |
181 |
180 |
180 |
181 |
180 |
Fuel consumption at 50% load |
g/kWh |
191 |
191 |
189 |
191 |
191 |
189 |
Clean leak fuel quantity, MDF at 100% load |
kg/h |
22,0 |
23,0 |
23,0 |
25,2 |
26,7 |
26.7 |
Clean leak fuel quantity, HFO at 100% load |
kg/h |
4,4 |
4,6 |
4,6 |
5,0 |
5,3 |
5.3 |
Lubricating oil system | |||||||
Pressure before bearings, nom. (PT 201) |
kPa |
500 |
500 |
500 |
500 |
500 |
500 |
Suction ability main pump, including pipe loss, max. |
kPa |
40 |
40 |
40 |
40 |
40 |
40 |
Priming pressure, nom. (PT 201) |
kPa |
50 |
50 |
50 |
50 |
50 |
50 |
Suction ability priming pump, including pipe loss, max. |
kPa |
35 |
35 |
35 |
35 |
35 |
35 |
Temperature before bearings, nom. (TE 201) |
°C |
63 |
63 |
63 |
63 |
63 |
63 |
Temperature after engine, approx. |
°C |
81 |
81 |
81 |
81 |
81 |
81 |
Pump capacity (main), engine driven |
m³/h |
115 |
120 |
120 |
115 |
120 |
120 |
Pump capacity (main), stand-by |
m³/h |
106 |
110 |
110 |
106 |
110 |
110 |
Priming pump capacity, 50Hz/60Hz |
m³/h |
38,0 / 45,9 |
38,0 / 45,9 |
38,0 / 45,9 |
38,0 / 45,9 |
38,0 / 45,9 |
38.0 / 45.9 |
Oil volume, wet sump, nom. |
m³ |
3,0 |
3,0 |
3,0 |
3,0 |
3,0 |
3.0 |
Oil volume in separate system oil tank, nom. |
m³ |
7,8 |
8,1 |
8,1 |
8,9 |
9,4 |
9.4 |
Oil consumption (100% load), approx. |
g/kWh |
0,5 |
0,5 |
0,5 |
0,5 |
0,5 |
0.5 |
Crankcase ventilation flow rate at full load |
l/min |
1980 |
1980 |
1980 |
2160 |
2160 |
2160 |
Crankcase ventilation backpressure, max. |
kPa |
0,4 |
0,4 |
0,4 |
0,4 |
0,4 |
0.4 |
Oil volume in turning device |
liters |
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 |
liters |
1,9 |
1,9 |
1,9 |
1,9 |
1,9 |
1.9 |
Cooling water system | |||||||
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 |
Pressure at engine, after pump, max. (PT 401) |
kPa |
530 |
530 |
530 |
530 |
530 |
530 |
Temperature before cylinders, approx. (TE 401) |
°C |
85 |
85 |
85 |
85 |
85 |
85 |
HT-water out from engine, nom (TE432) |
°C |
96 |
96 |
96 |
96 |
96 |
96 |
Capacity of engine driven pump, nom. |
m³/h |
100 |
100 |
100 |
100 |
100 |
100 |
Pressure drop over engine, total |
kPa |
150 |
150 |
150 |
150 |
150 |
150 |
Pressure drop in external system, max. |
kPa |
60 |
60 |
60 |
60 |
60 |
60 |
Pressure from expansion tank |
kPa |
70...150 |
70...150 |
70...150 |
70...150 |
70...150 |
70...150 |
Water volume in engine |
m³ |
0,74 |
0,74 |
0,74 |
0,74 |
0,74 |
0.74 |
Low temperature cooling water system | |||||||
Pressure at engine, after pump, nom. (PT 451) |
kPa |
250 + static |
250 + static |
250 + static |
250 + static |
250 + static |
250 + static |
Pressure at engine, after pump, max. (PT 451) |
kPa |
530 |
530 |
530 |
530 |
530 |
530 |
Temperature before engine (TE 451) |
°C |
25 ... 38 |
25 ... 38 |
25 ... 38 |
25 ... 38 |
25 ... 38 |
25 ... 38 |
Capacity of engine driven pump, nom. |
m³/h |
100 |
100 |
100 |
100 |
100 |
100 |
Pressure drop over charge air cooler |
kPa |
35 |
35 |
35 |
35 |
35 |
35 |
Pressure drop over oil cooler |
kPa |
20 |
20 |
20 |
20 |
20 |
20 |
Pressure drop in external system, max. |
kPa |
60 |
60 |
60 |
60 |
60 |
60 |
Pressure from expansion tank |
kPa |
70 ... 150 |
70 ... 150 |
70 ... 150 |
70 ... 150 |
70 ... 150 |
70 ... 150 |
Starting air system (Note 5) | |||||||
Pressure, nom. |
kPa |
3000 |
3000 |
3000 |
3000 |
3000 |
3000 |
Pressure at engine during start, min. (20°C) |
kPa |
1500 |
1500 |
1500 |
1500 |
1500 |
1500 |
Pressure, max. |
kPa |
3000 |
3000 |
3000 |
3000 |
3000 |
3000 |
Low pressure limit in air vessels |
kPa |
1800 |
1800 |
1800 |
1800 |
1800 |
1800 |
Air consumption per start |
Nm3 |
3,0 |
3,0 |
- |
3,0 |
3,0 |
- |
Air consumption per start without propeller shaft engaged |
Nm3 |
- |
- |
3,0 |
- |
- |
3.0 |
Air consumption with automatic start and slowturning |
Nm3 |
- |
- |
- |
4,5 |
4,5 |
4.5 |
Air consumption per start with propeller shaft engaged |
Nm3 |
- |
- |
4,8 |
- |
- |
4.8 |
Air consumption with automatic start and high inertia slowturning |
Nm3 |
- |
- |
- |
6,3 |
6,3 |
6.3 |
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 10°C.
Note 3 At ISO 3046-1 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 account when dimensioning heat exchangers.
Note 4 According to ISO 3046/1, lower calorific value 42 700 kJ/kg, with engine driven pumps (two cooling water + one lubricating oil pumps). Tolerance 5%. Load according to propeller law for mechanical propulsion engines (ME).
Note 5 Automatic (remote or local) starting air consumption (average) per start, at 20°C for a specific long start impulse (DE/AUX: 2...3 sec, CPP/FPP: 4...6 sec) which is the shortest time required for a safe start.
ME = Engine driving propeller, variable speed
AE = Auxiliary engine driving generator
DE = Diesel-Electric engine driving generator
Subject to revision without notice.
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