MAN Diesel 4.10
Page 2 of 3
MAN Diesel
198 82 853.0MAN B&W 98-50MC/MC-C/ME/ME-C/ME-B/-GI-TII,
46-35ME-B/-GI-TII engines
Fig. 4.10.02a: List of capacities for L28/32H, 750 rpm, IMO Tier II
L28/32H-Tll GenSet Data
1) Tolerance: + 10% for rating coolers, - 15% for heat recovery
2) Basic values for layout of the coolers
3) Under above mentioned reference conditions
4) Tolerance: quantity +/- 5%, temperature +/- 20°C
5) under below mentioned temperature at turbine outlet and pressure ac-
cording above mentioned reference conditions
6) Tolerance of the pumps delivery capacities must be considered by the
manufactures
* Only valid for engines equipped with internal basic cooling water sys-
tem no. 1 and 2.
** Only valid for engines equipped with combined coolers, internal basic
cooling water system no. 3
5L-9L: 220 kW/Cyl. at 750 rpm
Reference Condition: Tropic
Air temperature
LT water temperature inlet engine (from system)
Air pressure
Relative humidity
°C
°C
bar
%
45
38
1
50
Number of Cylinders
-
5 6 7 8 9
Engine output
Speed
kW
rpm
1,100 1,320 1,540 1,760 1,980
750
Heat to be dissipated
1)
Cooling water (C.W.) Cylinder
Charge air cooler; cooling water HT
Charge air cooler; cooling water LT
Lube oil (L.O.) cooler
Heat radiation engine
kW
kW
kW
kW
kW
245 294 343 392 442
0
(Single stage charge air cooler)
387 435 545 587 648
201 241 281 321 361
27 33 38 44 49
Flow rates
2)
Internal (inside engine)
HT cooling water cylinder
LT cooling water lube oil cooler *
LT cooling water lube oil cooler **
LT cooling water charge air cooler
m
3
/h
m
3
/h
m
3
/h
m
3
/h
37 45 50 55 60
7.8 9.4 11 12.7 14.4
28 28 40 40 40
37 45 55 65 75
Air data
Temperature of charge air at charge air cooler outlet
Air flow rate
Charge air pressure
Air required to dissipate heat radiation (engine) (t
2
-t
1
=10°C)
°C
m
3
/h
3)
kg/kWh
bar
m
3
/h
52 54 52 52 55
7,826 9,391 10,956 12,521 14,087
7.79 7.79 7.79 7.79 7.79
3.07
8,749 10,693 12,313 14,257 15,878
Exhaust gas data
4)
Volume flow (temperature turbocharger outlet)
Mass flow
Temperature at turbine outlet
Heat content (190°C)
Permissible exhaust back pressure
m
3
/h
5
)
t/h
°C
kW
mbar
15,520 18,624 21,728 24,832 27,936
8.8 10.5 12.3 14.1 15.8
342 342 342 342 342
401 481 561 641 721
< 30
Pumps
a) Engine driven pumps
Fuel oil feed pump (5,5-7,5 bar)
HT circuit cooling water (1,0-2,5 bar)
LT circuit cooling water (1,0-2,5 bar)
Lube oil (3,0-5,0 bar)
b) External pumps
6)
Diesel oil pump (4 bar at fuel oil inlet A1)
Fuel oil supply pump (4 bar discharge pressure)
Fuel oil circulating pump (8 bar at fuel oil inlet A1)
HT circuit cooling water (1,0-2,5 bar)
LT circuit cooling water (1,0-2,5 bar) *
LT circuit cooling water (1,0-2,5 bar) **
Lube oil (3,0-5,0 bar)
m
3
/h
m
3
/h
m
3
/h
m
3
/h
m
3
/h
m
3
/h
m
3
/h
m
3
/h
m
3
/h
m
3
/h
m
3
/h
1.4 1.4 1.4 1.4 1.4
45 45 60 60 60
45 60 75 75 75
24 24 34 34 34
0.78 0.93 1.09 1.24 1.40
0.37 0.45 0.52 0.60 0.67
0.78 0.93 1.09 1.24 1.40
37 45 50 55 60
45 54 65 77 89
65 73 95 105 115
22 23 25 27 28
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