12VM43C
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Описание двигателя:
12VM43C представляет собой двенадцатицилиндровый, V-образный, четырехтактный, дизельный двигатель, нереверсивный, с турбонаддувом, промежуточным охлаждением и с прямым впрыском топлива.
Буква "С" в названии модели означает возможность работы двигателя на тяжелом топливе (до 700 сСт при 50 °С).
Технические характеристики
| Technical data 12VM43C | ||
| Performance Data | ||
| Maximum continuous rating acc. ISO 3046/1 | kW | 12000 |
| Speed | 1/min | 500/514 |
| Minimum speed | 1/min | 300 |
| Brake mean effective pressure | bar | 27,1/26,4 |
| Charge air pressure | bar | 4 |
| Firing pressure (max. allowed, tolerance +/- 3 %) | bar | 208 |
| Combustion air demand (ta = 20⁰C) | m³/h | 70000 |
| Specific fuel oil consumption | ||
| Propeller / n = const 1) 100% | g/kWh | 176 |
| 85% | g/kWh | -/175 |
| 75% | g/kWh | -/177 |
| 50% | g/kWh | -/184 |
| Lube oil consumption 2) | g/kWh | 0,6 |
| NOx - emission 6) | g/kWh | 10 |
| Turbocharger type | 2x ABB TPL71 | |
| Fuel | ||
| Engine driven booster pump | m³/h /bar | - |
| Stand-by booster pump | m³/h /bar | 8,4/5 |
| 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 | 250/10 |
| Independent pump | m³/h /bar | 200/10 |
| Working pressure at engine inlet | bar | 4-5 |
| Independent suction pump | m³/h /bar | 350/3 |
| Priming pump | m³/h /bar | 30/5 |
| Lube oil circulating tank/dry sump content | m³ | 16,3 |
| Temperature at engine inlet | ⁰C | 60-65 |
| Temperature controller NB | mm | 200 |
| Double filter NB | mm | 200 |
| Mesh size double filter | mm | 0,08 |
| Mesh size automatic filter | mm | 0,03 |
| Fresh water cooling | ||
| Engine content | m³ | 2,8 |
| Pressure at engine inlet min/max | bar | 4,5/6,0 |
| Headertank capacity | m³ | 1,5 |
| Temperature at engine outlet | ⁰C | 80-90 |
| Two-circuit system | ||
| Engine driven pump HT | m³/h /bar | 200/4,7 |
| Independent pump HT | m³/h /bar | 200/3 |
| HT-controller NB | mm | 200 |
| Independent pump NT | m³/h /bar | 200/3 |
| Water demand LT-charge air cooler | m³/h | 100 |
| Temperature at LT-charger air cooler inlet | ⁰C | 38 |
| Heat dissipation | ||
| Specific jacket water heat | kJ/kW | 500 |
| Specific lube oil heat | kJ/kW | 525 |
| Lube oil cooler | kW | 1750 |
| Jacket water | kW | 1667 |
| Charge air cooler (HT-stage) 3) | kW | 4940 |
| Charge air cooler (LT-stage) 3) | kW | 890 |
| Heat radiation engine | kW | 511 |
| Exhaust gas | ||
| Silencer/spark arrester NB | mm | 1200 |
| Pipe diameter NB afterturbine | mm | 2x900 |
| Exhaust gas mass flow (25⁰C intake air) 5) | kg/h | 91100 |
| Exhaust gas temp, after turbine (25⁰C intake air) 5) | ⁰C | 292 |
| Maximum exhaust gas pressure drop | bar | 0,03 |
| Starting air | ||
| Starting air pressure max. | bar | 30 |
| Minimum starting air pressure | bar | 14 |
| Air consumption per start 4) | Nm³ | 3 |
| Max. crankcase pressure, nominal diameter ventilation pipe | mmWs/mm | 15/200 |
| 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 ambient temperature | ||
| 4) Preheated engine | ||
| 5) Tolerance 10 % rel. humidity 60 % | ||
| 6) MARPOL 73/78 Annex VI, Cycle E2, E3, D2 |
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