9M25C
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9M25C представляет собой девятицилиндровый, четырехтактный дизельный двигатель, нереверсивный, с турбонаддувом, промежуточным охлаждением и с прямым впрыском топлива.
Технические характеристики
Technical data 9M25C | |||
Performance Data | |||
Maximum continuous rating acc. ISO 3046/1 | kW | 2850 | 3000 |
Speed | 1/min | 720 | 750 |
Minimum speed | 1/min | 240 | 250 |
Brake mean effective pressure | bar | 25,8 | 26,1 |
Charge air pressure | bar | 3,2 | |
Firing pressure | bar | 205 | 210 |
Combustion air demand (ta = 20°C) | m³/h | 16280 | 17190 |
Specific fuel oil consumption | |||
n = const1) 100% | g/kWh | 187 | |
85% | g/kWh | 184 | |
75% | g/kWh | 184 | |
50% | g/kWh | 193 | |
Lubricating oil consumption 2) | g/kWh | 0,6 | |
NOx -emission 6) | g/kWh | 9,6 | |
Turbocharger type | KBB HPR6000 | ||
Fuel | |||
Engine driven booster pump | m³/h /bar | 1,5/3 | |
Stand-by booster pump | m³/h /bar | 2,7/10 | 2,8/10 |
Mesh size MDO fine filter | mm | 0,025 | |
Mesh size HFO automatic filter | mm | 0,01 | |
Mesh size HFO fine filter | mm | 0,034 | |
Lubricating Oil | |||
Engine driven pump | m³/h /bar | 89/10 | 93/10 |
Independent pump | m³/h /bar | 60/10 | |
Working pressure at engine inlet | bar | 4 - 5 | |
Independentsuction pump | m³/h /bar | 70/3 | |
Primimg pump pressure/suction pump | m³/h /bar | 10/13/5 | |
Sump tank content/dry sump content | m³ | 3,9 | 4 |
Temperature at engine inlet | ⁰C | 60 - 65 | |
Temperature controller NB | mm | 100 | |
Double filter NB | mm | 80 | |
Mesh size double filter | mm | 0,08 | |
Mesh size automatic filter | mm | 0,03 | |
Fresh water cooling | |||
Engine content | m³ | 0,6 | |
Pressure at engine inlet min/max | bar | 4,5/6,0 | |
Headertank capacity | m³ | 0,3 | |
Temperature at engine outlet | ⁰C | 80 - 90 | |
Two-circuit system | |||
Engine driven pump HT | m³/h /bar | 60/4,7 | |
Independent pump HT | m³/h /bar | 60/4,0 | |
HT-controller NB | mm | 100 | |
Water demand LT-charge air cooler | m³/h | 60 | |
Temperature at LT-charger air cooler inlet | ⁰C | 38 | |
Heat dissipation | |||
Specific jacket water heat | kJ/kW | 500 | |
Specific lube oil heat | kJ/kW | 490 | |
Lube oil cooler | kW | 388 | 410 |
Jacket water | kW | 396 | 417 |
Charge air cooler (HT stage)3) | kW | 794 | 807 |
Charge air cooler (LT stage)3) (HT stage after engine) | kW | 271 | 275 |
Heat radiation engine | kW | 128 | |
Exhaust gas | |||
Silencer/spark arrester NB 25 dBA | mm | 600/600 | |
Pipe diameter NB after turbine | mm | 600 | |
Maximum exhaust gas pressure drop | bar | 0,03 | |
Exhaust gas temp after turbine (25°C intake air) 5) | ⁰C | 350 | 342 |
Exhaust gas mass flow (25°C intake air)5) | kg/h | 20120 | 21250 |
Starting air | |||
Starting air pressure max. | bar | 30 | |
Minimum starting air pressure | bar | 7 | |
Air consumption per start4) | Nm³ | 0,8 | |
Max. crankcase pressure, nominal diameter ventilation pipe | mmWs/ mm | 15/80 | |
1) Reference conditions: LCV = 42700 kJ/kg ambient temperature 25 ⁰C | |||
charge air coolant temperature 25 ⁰C tolerance 5 % | |||
+ 1 % for engine driven pump | |||
2) Standard value tolerance ± 0,3 g/kWh related on full load | |||
3) Charge air heat based on 45 ⁰C ambienttemperature | |||
4) Preheated engine | |||
5) Tolerance 10 % rel. humidity 60 % | |||
6) MARPOL 73/78 Annex VI, Cycle E2, E3, D2 |
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