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MAN Diesel 4.09
L27/38 GenSet Data
Fig. 4.09.02a: L<strong>is</strong>t of capacities for L27/38, 720 rpm
MAN B&W 98 → 50 MC/MC�C, 108 → 50 ME/ME�C, 70 → 60
ME�GI, 50 → 35 ME�B
MAN Diesel
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Cyl. 5 6 7 8 9
Max continues rating 720 RPM kW ,500 ,980 2,3 0 2,640 2,970
Engine driven pumps:
LT cooling water pump (2.5 bar) m³/h 58 58 58 58 58
HT cooling water pump (2.5 bar) m³/h 58 58 58 58 58
Lubricating oil main pump (8 bar) m³/h 64 64 92 92 92
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 .02 .33 .55 .77 2.00
Fuel oil Supply pump (4 bar at d<strong>is</strong>charge pressure) m³/h 0.50 0.66 0.76 0.87 0.98
Fuel oil circulating pump (8 bar at fuel oil inlet A ) m³/h .03 .35 .57 .80 2.02
Cooling capacity:
Lubricating oil kW 206 283 328 376 420
Charge air LT kW 44 392 436 473 504
Total LT system kW 350 675 764 849 924
Flow LT at 36°C inlet and 44°C outlet m³/h 38 58 58 58 58
Jacket cooling kW 287 486 573 664 754
Charge air HT kW 390 558 640 722 802
Total HT system kW 677 ,044 ,2 3 ,386 ,556
Flow HT at 44°Cinlet and 80°C outlet m³/h 6 22 27 32 38
Total from engine kW ,027 ,7 9 ,977 2,235 2,480
LT flow at 36°C inlet m³/h 38 58 58 58 58
LT temp. Outlet engine °C 59 58 6 64 68
(at 36°C and string cooling water system)
Gas Data:
Exhaust gas flow kg/h 0,476 5,000 7,400 9,900 22,400
Exhaust gas temp. °C 330 295 295 295 295
Max. Allowable back press. bar 0,025 0,025 0,025 0,025 0,025
Air consumption kg/h 0, 77 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 53 64 75 68 73
Alternator kW (see separate data from the alternator maker)
The stated heat balances are based on tropical conditions.
The exhaust gas data (exhaust gas flow, exhaust gas temp.
and air consumption). are based on ISO ambient condition.
* The outlet temperature of the HT water <strong>is</strong> fixed to 80°C, and
44°C for the LT water
At different inlet temperature the flow will change accordingly.
Example: If the inlet temperature <strong>is</strong> 25°C then the LT flow will
change to (46-36)/(46-25)* 00 = 53% of the original flow.
The HT flow will not change.
178 48 63�6.1
198 42 09�1.4