MAN Diesel 4.09
Page 3 of 3
MAN Diesel
198 42 091.4MAN B&W 98 → 50 MC/MCC, 108 → 50 ME/MEC, 70 → 60
MEGI, 50 → 35 MEB
L27/38 GenSet Data
Fig. 4.09.02b: List of capacities for L27/38, 750 rpm
Cyl. 5 6 7 8 9
Max continues rating 750 RPM
kW ,600 ,980 2,30 2,640 2,970
Engine driven pumps:
LT cooling water pump 2.5 bar m³/h 70 70 70 70 70
HT cooling water pump 2.5 bar m³/h 70 70 70 70 70
Lubricating oil main pump 8 bar m³/h 66 66 96 96 96
Separate pumps:
Max. Delivery pressure of cooling water pumps bar 2.5 2.5 2.5 2.5 2.5
Diesel oil pump (5 bar at fuel oil inlet A) m³/h .0 .34 .57 .79 2.0
Fuel oil supply pump (4 bar discharge pressure) m³/h 0.54 0.66 0.77 0.88 0.99
Fuel oil circulating pump (8 bar at fuel oil inlet A) m³/h . .36 .59 .8 2.04
Cooling capacity:
Lubricating oil kW 27 283 328 376 420
Charge air LT kW 55 392 436 473 504
Total LT system kW 372 675 764 849 924
Flow LT at 36°C inlet and 44°C outlet m³/h 40 70 70 70 70
Jacket cooling kW 402 486 573 664 754
Charge air HT kW 457 558 640 722 802
Total HT system kW 859 ,044 ,23 ,386 ,556
Flow HT at 44°Cinlet and 80°C outlet m³/h 2 22 27 32 38
Total from engine kW ,23 ,79 ,977 2,235 2,480
LT ow at 36°C inlet m³/h 40 70 70 70 70
LT temp. Outlet engine °C 62 55 58 6 64
(at 36°C and string cooling water system)
Gas Data:
Exhaust gas ow kg/h ,693 5,000 7,400 9,900 22,400
Exhaust gas temp. °C 330 305 305 305 305
Max. Allowable back press. bar 0.025 0.025 0.025 0.025 0.025
Air consumption kg/h ,662 4,600 7,000 9,400 2,800
Starting Air System:
Air consumption per start Nm
3
2.5 2.9 3.3 3.8 4.3
Heat Radiation:
Engine kW 54 64 75 68 73
Alternator kW (see separate data from the alternator maker)
178 48 636.1
The stated heat balances are based on tropical conditions.
The exhaust gas data (exhaust gas ow, exhaust gas temp.
and air consumption). are based on ISO ambient condition.
* The outlet temperature of the HT water is xed to 80°C, and
44°C for the LT water
At different inlet temperature the ow will change accordingly.
Example: If the inlet temperature is 25°C then the LT ow will
change to (46-36)/(46-25)*00 = 53% of the original ow.
The HT ow will not change.
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