W 12V38
Описание двигателя Wärtsilä 12V38
Wärtsilä 12V38 - двенадцатицилиндровый, V-образный, четырехтактный, реверсивный, с турбонаддувом и промежуточным охлаждением дизельный двигатель, с прямым впрыском топлива.
Технические характеристики
|
Diesel engine Wärtsilä 12V38 |
|
DE |
CPP |
|
Engine speed |
RPM |
600 |
600 |
|
Engine output |
kW |
8700 |
8700 |
|
Cylinder bore |
mm |
380 |
380 |
|
Stroke |
mm |
475 |
475 |
|
Mean effective pressure |
MPa |
2.7 |
2.7 |
|
Mean piston speed |
m/s |
9.5 |
9.5 |
|
Idling speed |
rpm |
320 |
320 |
|
Combustion air system |
|
|
|
|
Flow of air at 100% load |
kg/s |
15.22 |
15.22 |
|
Ambient air temperature, max. |
°C |
45 |
45 |
|
Air temperature after air cooler (TE601) |
°C |
50 |
50 |
|
Air temperature after air cooler, alarm |
°C |
60 |
60 |
|
Exhaust gas system (Note 1) |
|
|
|
|
Exhaust gas flow, 100% load |
kg/s |
15.7 |
15.7 |
|
Exhaust gas flow, 85% load |
kg/s |
15.19 |
14.5 |
|
Exhaust gas flow, 75% load |
kg/s |
13.83 |
12.62 |
|
Exhaust gas flow, 50% load |
kg/s |
9.72 |
9.85 |
|
Exhaust gas temperature after turbocharger, 100% load (TE517) |
°C |
389 |
389 |
|
Exhaust gas temperature after turbocharger, 85% load (TE517) |
°C |
309 |
320 |
|
Exhaust gas temperature after turbocharger, 75% load (TE517) |
°C |
307 |
328 |
|
Exhaust gas temperature after turbocharger, 50% load (TE517) |
°C |
323 |
314 |
|
Exhaust gas back pressure, max. |
kPa |
3 |
3 |
|
Exhaust gas pipe diameter, min. |
mm |
900 |
900 |
|
Calculated exhaust diameter for 35 m/s |
mm |
1032 |
1032 |
|
Heat balance at 100% load (Note 2) |
|
|
|
|
Jacket water, HT-circuit |
kW |
1001 |
1001 |
|
Charge air, HT-circuit |
kW |
1663 |
1663 |
|
Lubricating oil, LT-circuit |
kW |
1042 |
1042 |
|
Charge air, LT-circuit |
kW |
770 |
770 |
|
Radiation |
kW |
340 |
340 |
|
Fuel system (Note 3) |
|
|
|
|
Pressure before injection pumps (PT101) |
kPa |
700 |
700 |
|
Viscosity before injection pumps (HFO) |
cSt |
16..24 |
16..24 |
|
Viscosity before injection pumps (MDF), min. |
cSt |
2 |
2 |
|
Fuel temperature before injection pumps (HFO) (TE101) |
°C |
< 140 |
< 140 |
|
Fuel temperature before injection pumps (MDF) (TE101) |
°C |
< 45 |
< 45 |
|
Circulating fuel flow / consumption ratio (100% load), min. |
|
4:1 |
4:1 |
|
Fuel consumption (HFO), 100% load |
g/kWh |
182 |
182 |
|
Fuel consumption (HFO), 85% load |
g/kWh |
178 |
176 |
|
Fuel consumption (HFO), 75% load |
g/kWh |
179 |
175 |
|
Fuel consumption (HFO), 50% load |
g/kWh |
185 |
180 |
|
Leak fuel quantity, clean fuel (HFO), 100% load |
kg/h |
3.3 |
3.3 |
|
Leak fuel quantity, clean fuel (MDF), 100% load |
kg/h |
33.1 |
33.1 |
|
Lubricating oil system |
|
|
|
|
Pressure before engine, nom. (PT201) |
kPa |
450 |
450 |
|
Pressure before engine, alarm (PT201) |
kPa |
380 |
380 |
|
Pressure before engine, stop (PT201) |
kPa |
340 |
340 |
|
Priming pressure, nom. (PT201) |
kPa |
50 |
50 |
|
Temperature before engine, nom. (TE201) |
°C |
63 |
63 |
|
Temperature before engine, alarm (TE201) |
°C |
70 |
70 |
|
Temperature after engine, approx. |
°C |
80 |
80 |
|
Pump capacity (main), engine driven |
m³/h |
155 |
155 |
|
Pump capacity (main), separate |
m³/h |
131 |
131 |
|
Pump capacity (priming), 50/60 Hz |
m³/h |
35 / 35 |
35 / 35 |
|
Suction ability of main engine driven pump (including pressure losses in pipes), max. |
kPa |
40 |
40 |
|
Oil volume in separate system oil tank, nom. |
m³ |
11.8 |
11.8 |
|
Filter fineness, mesh size |
μm |
30 |
30 |
|
Filters difference pressure, alarm |
kPa |
100 |
100 |
|
Oil consumption (100% load), approx. |
g/kWh |
0.7 |
0.7 |
|
Crankcase ventilation flow rate |
l/min/cyl |
210 |
210 |
|
Crankcase backpressure, max. |
kPa |
0.2 |
0.2 |
|
High temperature cooling water system |
|
|
|
|
Pressure before engine, nom. (PT401) |
kPa |
380 + static |
380 + static |
|
Pressure before engine, alarm (PT401) |
kPa |
250 + static |
250 + static |
|
Pressure before engine, max. (PT401) |
kPa |
460 + static |
460 + static |
|
Temperature before engine, approx. (TE401) |
°C |
73 |
73 |
|
Temperature after engine, nom. (TE402) |
°C |
93 |
93 |
|
Temperature after engine, alarm (TE402) |
°C |
103 |
103 |
|
Temperature after engine, stop (TE402) |
°C |
110 |
110 |
|
Pump capacity, nom. |
m³/h |
132 |
132 |
|
Pressure drop over engine |
kPa |
180 |
180 |
|
Water volume in engine |
m³ |
0.6 |
0.6 |
|
Pressure from expansion tank |
kPa |
70...150 |
70...150 |
|
Pressure drop over external system, max. |
kPa |
160 |
160 |
|
Delivery head of stand-by pump |
kPa |
380 |
380 |
|
Low temperature cooling water system |
|
|
|
|
Pressure before charge air cooler, nom. (PT471) |
kPa |
340 + static |
340 + static |
|
Pressure before charge air cooler, alarm (PT471) |
kPa |
250 + static |
250 + static |
|
Pressure before charge air cooler, max. (PT471) |
kPa |
460 + static |
460 + static |
|
Temperature before engine, max. (TE471) |
°C |
38 |
38 |
|
Temperature after engine, min. |
°C |
44 |
44 |
|
Pump capacity, nom. |
m³/h |
168 |
168 |
|
Pressure drop over engine |
kPa |
180 |
180 |
|
Water volume in engine |
m³ |
0.6 |
0.6 |
|
Pressure drop over external system, max. |
kPa |
120 |
120 |
|
Pressure from expansion tank |
kPa |
70...150 |
70...150 |
|
Delivery head of stand-by pump |
kPa |
340 |
340 |
|
Starting air system (Note 4) |
|
|
|
|
Air pressure, nom. (PT301) |
kPa |
3000 |
3000 |
|
Air pressure, min. (20°C) (PT301) |
kPa |
1200 |
1200 |
|
Air pressure, max. (PT301) |
kPa |
3000 |
3000 |
|
Low pressure limit in air vessels |
kPa |
1800 |
1800 |
|
Air consumption per start (20°C) |
Nm3 |
4.7 |
4.7 |
|
Air consumption per start, with generator (20°C) |
Nm3 |
6.7 |
6.7 |
|
COMMON RAIL |
|
|
|
|
Fuel system |
|
|
|
|
Pressure before injection pumps, min. |
kPa |
1000 |
1000 |
|
Viscosity before injection pumps (HFO) |
cSt |
16..24 |
16..24 |
|
Viscosity before injection pumps (MDF) |
cSt |
2 |
2 |
|
Quantity of clean leak fuel, HFO (100% load, excluding injector return) |
kg/h |
1.7 |
1.7 |
|
Quantity of clean leak fuel, MDF (100% load, excluding injector return) |
kg/h |
16.6 |
16.6 |
|
Clean return fuel from fuel injector, HFO (100% load) |
kg/h |
331 |
331 |
|
Clean return fuel from fuel injector, MDF (100% load) |
kg/h |
331 |
331 |
|
Fuel temperature before fuel pumps (HFO) |
°C |
< 140 |
< 140 |
|
Fuel temperature before fuel pumps (MDF) |
°C |
< 45 |
< 45 |
|
Circulating fuel flow / consumption ratio (100%) load, min. |
|
3:1 |
3:1 |
|
Mixing tank pressure, max. |
kPa |
500 |
500 |
|
Filter absolute mesh size (HFO), max. (automatic fine filter) |
μm |
10 |
10 |
|
Filter absolute mesh size (MDF), max. (automatic or duplex filter) |
μm |
10 |
10 |
|
Safety filter absolute mesh size (HFO), max. |
μm |
25 |
25 |
|
Lubricating oil system |
|
|
|
|
Pressure at engine inlet, nom. |
kPa |
450 |
450 |
|
Pressure after control oil pump, nom. |
kPa |
25000 |
25000 |
|
Control oil flow to engine (engine running), nom. |
l/min/cyl |
0.5 |
0.5 |
|
Control oil flow to engine, max. momentary flow (= max. pump capacity) |
l/min |
110 |
110 |
|
Temperature before control oil pump, nom. |
°C |
63 |
63 |
|
Filter absolute mesh size, max. (automatic fine filter) |
μm |
10 |
10 |
|
Filter absolute mesh size, max. (by-pass filter for automatic filter) |
μm |
25 |
25 |
|
Running-in filters on injectors holder mesh size, max. |
μm |
100 |
100 |
|
Starting air system |
|
|
|
|
Air consumption per start (20°C) |
Nm3 |
4.7 |
4.7 |
Notes:
Note 1 At ISO 3046/1 conditions and 100% load. Flow tolerance 5% and temperature tolerance ±10°C.
Note 2 At ISO 3046/1 conditions and 100% load. Tolerance for cooling water heat ±10%, tolerance for radiation heat ±15%. Fouling factors and a margin to be taken into account when dimensioning heat exchangers.
Note 3 According to ISO 3046/1, lower calorofic value 42 700 kJ/kg at constant engine speed, with engine driven pumps. Tolerance 5%. Constant speed applications are Auxiliary and DE. Mechanical propulsion variable speed applications according to propeller law.
Note 4 Starting procedure performed by automation system. Starting air consumption is higher for propulsion engines without clutch.
Subject to revision without notice.
Ко всему вышеуказанному оборудованию мы поставляем СЗЧ согласно каталожным номерам производителя.