Man B&W S50ME-B9.3-TII, Project Manual

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MAN Diesel
198 82 841.0 MAN B&W 98-50MC/MC-C/ME/ME-C/ME-B/-GI-TII,
46-35ME-B/-GI-TII engines
MAN Diesel 4.09
Page 3 of 3
1) LT cooling water flow first through LT stage charge air cooler, then
through lube oil cooler, water temperature outlet engine regulated by
mechanical thermostat.
2) HT cooling water flow first through HT stage charge air cooler, then
through water jacket and cylinder head, water temperature outlet
engine regulated by mechanical thermostat.
3) Tolerance: + 10% for rating coolers, - 15% for heat recovery.
4) Basic values for layout of the coolers.
5) Under above mentioned reference conditions.
6) Tolerance: qu/- 5%, tempe/- 20°C.
7) Under below mentioned temperature at turbine outlet and pressure
according above mentioned reference conditions.
8) Tolerance of the pumps delivery capacities must be considered by the
manufactures.
6-9L27/38: 350 kW/cyl., 750 rpm, MGO
Reference Condition : Tropic
Air temperature
LT-water temperature inlet engine (from system)
Air pressure
Relative humidity
°C
°C
bar
%
45
38
1
50
Temperature basis
Setpoint HT cooling water engine outlet
1)
Setpoint LT cooling water engine outlet
2)
Setpoint Lube oil inlet engine
°C
°C
°C
79 nominal (Range of mechanical thermostatic element 77 to 85)
35 nominal (Range of mechanical thermostatic element 29 to 41)
66 nominal (Range of mechanical thermostatic element 63 to 72)
Number of Cylinders - 6 7 8 9
Engine output
Speed
kW
rpm
2,100 2,450 2,800 3,150
750
Heat to be dissipated 3)
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
315 368 421 473
679 797 916 1037
181 208 234 258
282 329 376 423
70 81 93 104
Flow rates
4)
Internal (inside engine)
HT circuit (cy charge air cooler HT stage)
LT circuit (lube oil + charge air cooler LT stage)
Lube oil
External (from engine to system)
HT water flow (at 40°C inlet)
LT water flow (at 38°C inlet)
m
3
/h
m 3 /h
m
3
/h
m 3 /h
m
3
/h
69 69 69 69
69 69 69 69
66 96 96 96
21.9 25.4 28.9 32.2
69 69 69 69
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
5
)
kg/kWh
bar
m
3
/h
55 55 55 55
13,003 15,170 17,338 19,505
6.78 6.78 6.78 6.78
4.09
22,682 26,247 30,135 33,699
Exhaust gas data
6)
Volume flow (temperature turbocharger outlet)
Mass flow
Temperature at turbine outlet
Heat content (190°C)
Permissible exhaust back pressure
m 3 /h 7 )
t/h
°C
kW
mbar
27,567 32,161 36,756 41,350
14.7 17.1 19.5 22.0
382 382 382 382
844 985 1,126 1,266
< 30
Pumps
a) Engine driven pumps
HT circuit cooling water (2.5 bar)
LT circuit cooling water (2.5 bar)
Lube oil (4.5 bar)
b) External pumps
8)
Diesel oil pump (5 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)
m
3
/h
m
3
/h
m
3
/h
m 3 /h
m
3
/h
m
3
/h
69 69 69 69
69 69 69 69
66 96 96 96
1.48 1.73 1.98 2.23
0.71 0.83 0.95 1.07
1.48 1.73 1.98 2.23
Starting air data
Air consumption per start, incl. air for jet assist (IR/TDI) Nm 3 2.9 3.3 3.8 4.3
Fig. 4.09.02b: List of capacities for L27/38, 750 rpm, IMO Tier II
L27/38-Tll GenSet Data