Fig. 4.08.02a: List of capacities for L23/30H, 720/750 rpm
L23/30H GenSet Data
Cyl. 5-ECR 5 6 7 8
Max. continuous rating at 720/750 RPM
kW 525/550 650/675 780/80 90/945 ,040/,080
Engine-driven Pumps:
Fuel oil feed pump (5.5-7.5 bar) m
3
/h . 0 .0 .0 .0 .0
L.T. cooling water pump (-2.5 bar) m
3
/h 55 55 55 55 55
H.T. cooling water pump (-2.5 bar) m
3
/h 36 36 36 36 36
Lub. oil main pump (3-5 bar) m
3
/h 6 6 6 20 20
Separate Pumps:
Diesel oil pump (4 bar at fuel oil inlet A) m³/h 0.36/0.38 0.46/0.48 0.55/0.57 0.64/0.67 0.73/0.76
Fuel oil supply pump *** (4 bar discharge pressure) m
3
/h 0.8/0.9 0.22/0.23 0.27/0.28 0.3/0.33 0.36/0.37
Fuel oil circulating pump (8 bar at fuel oil inlet A) m³/h 0.37/0.39 0.46/0.48 0.56/0.58 0.65/0.67 0.74/0.77
L.T. cooling water pump* (-2.5 bar) m
3
/h 35 35 42 48 55
L.T. cooling water pump** (-2.5 bar) m
3
/h 48 48 54 60 73
H.T. cooling water pump (-2.5 bar) m
3
/h 20 20 24 28 32
Lub. oil stand-by pump (3-5 bar) m
3
/h 4.0 4.0 5.0 6.0 7.0
Cooling Capacities:
Lubricating Oil:
Heat dissipation kW 63 69 84 98 2
L.T. cooling water quantity* m
3
/h 4.6 5.3 6.4 7.5 8.5
L.T. cooling water quantity** m
3
/h 8 8 8 8 25
Lub. oil temp. inlet cooler °C 67 67 67 67 67
L.T. cooling water temp. inlet cooler °C 36 36 36 36 36
Charge Air:
Heat dissipation kW 56 25 299 348 395
L.T. cooling water quantity m
3
/h 30 30 36 42 48
L.T. cooling water inlet cooler °C 36 36 36 36 36
Jacket Cooling:
Heat dissipation kW 54 82 29 257 294
H.T. cooling water quantity m
3
/h 20 20 24 28 32
H.T. cooling water temp. inlet cooler °C 77 77 77 77 77
Gas Data:
Exhaust gas ow kg/h 4,30 5,50 6,620 7,720 8,820
Exhaust gas temp. °C 30 30 30 30 30
Max. allowable back. press. bar 0.025 0.025 0.025 0.025 0.025
Air consumption kg/s .7 .49 .79 2.09 2.39
Starting Air System:
Air consumption per start Nm
3
2.0 2.0 2.0 2.0 2.0
Heat Radiation:
Engine kW 9 2 25 29 34
Generator kW (See separate data from generator maker)
The stated heat dissipation, capacities of gas and engine-driven pumps are given at 720 RPM. Heat dissipation gas and pump capaci-
ties at 750 RPM are 4% higher than stated. If L.T. cooling are sea water, the L.T. inlet is 32° C instead of 36°C.
Based on tropical conditions, except for exhaust flow and air consumption which are based on ISO conditions.
* Only valid for engines equipped with internal basic cooling water system nos. 1 and 2.
** Only valid for engines equipped with combined coolers, internal basic cooling water system no. 3.
*** To compensate for built on pumps, ambient condition, calorific value and adequate circulations flow. The ISO fuel oil consumption is
multiplied by 1.45.
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