Engine Selection Guide Two-stroke MC/MC-C Engines
Engine Selection Guide Two-stroke MC/MC-C Engines
This book describes the general technical features of the MC Programme This Engine Selection Guide is intended as a 'tool' for assistance in the initial stages of a project. As differences may appear in the individual suppliers' extent of delivery, please contact the relevant engine supplier for a confirmation of the actual execution and extent of delivery. For further informatoin see the Project Guide for the relevant engine type. This Engine Selection Guide and most of the Project Guides are available on a CD ROM. The data and other information given is subject to change without notice.
5th Edition February 2000
MAN B&W Diesel A/S
Engine Selection Guide
Engine Data
Engine Power
The table contains data regarding the engine power, speed and specific fuel oil consumption of the engines of the MC Programme.
Engine power is specified in both BHP and kW, in rounded figures, for each cylinder number and layout points L1, L2, L3 and L4:
L1 designates nominal maximum continuous rating (nominal MCR), at 100% engine power and 100% engine speed.
L2, L3 and L4 designate layout points at the other three corners of the layout area, chosen for easy reference.
Power L1
L3
L2
L4
Speed
Fig. 1.01: Layout diagram for engine power and speed
Overload corresponds to 110% of the power at MCR, and may be permitted for a limited period of one hour every 12 hours.
The engine power figures given in the tables remain valid up to tropical conditions at sea level, ie.:
Blower inlet temperature . . . . . . . . . . . . . . . . 45 ?C Blower inlet pressure . . . . . . . . . . . . . . . 1000 mbar Seawater temperature . . . . . . . . . . . . . . . . . . 32 ?C
Specific fuel oil consumption (SFOC)
Specific fuel oil consumption values refer to brake power, and the following reference conditions:
ISO 3046/1-1986: Blower inlet temperature . . . . . . . . . . . . . . . . 25 ?C Blower inlet pressure . . . . . . . . . . . . . . . 1000 mbar Charge air coolant temperature . . . . . . . . . . . 25 ?C Fuel oil lower calorific value . . . . . . . . 42,700 kJ/kg
(10,200 kcal/kg)
Although the engine will develop the power specified up to tropical ambient conditions, the specific fuel oil consumption varies with ambient conditions and fuel oil lower calorific value. For calculation of these changes, see section 2.
SFOC guarantee
The figures given in this project guide represent the values obtained when the engine and turbocharger are matched with a view to obtaining the lowest possible SFOC values and fulfilling the IMO NOx emission limitations.
The Specific Fuel Oil Consumption (SFOC) is guaranteed for one engine load (power-speed combination), this being the one in which the engine is optimised.
The guarantee is given with a margin of 5%.
As SFOC and NOx are interrelated parameters, an engine offered without fulfilling the IMO NOx limitations is subject to a tolerance of only 3% of the SFOC.
Lubricating oil data
The cylinder oil consumption figures stated in the tables are valid under normal conditions. During running-in periods and under special conditions, feed rates of up to 1.5 times the stated values should be used.
430100 400
1.01
198 22 27
MAN B&W Diesel A/S
The engine types of the MC programme are identified by the following letters and figures
Engine Selection Guide
6 S 70 MC - C
Design
C Compact engine S Stationary plant
Concept Engine programme
C Camshaft controlled E Electronic controlled (Intelligent Engine)
Diameter of piston in cm
Stroke/bore ratio
S Super long stroke approximately 4.0
L Long stroke
approximately 3.2
K Short stroke
approximately 2.8
Number of cylinders
Fig. 1.02: Engine type designation
430100 400
1.02
178 34 39-1.0 198 22 27
MAN B&W Diesel A/S
Engine Selection Guide
Power
KW BHP
Engine type
Layout point
Engine speed
Mean effective pressure
Number of cylinders
r/min bar
4
5
6
7
8
9
10 11 12
K98MC L1 94 18.2
34320 40040 45760 51480 57200 62920 68640 46680 54460 62240 70020 77800 85580 93360
Bore 980 mm
L2
94
14.6
27480 32060 36640 41220 45800 50380 54960 37320 43540 49760 55980 62200 68420 74640
Stroke 2660 mm
L3
84
18.2
30660 35770 40880 45990 51110 56210 61320 41700 48650 55600 62550 69500 76450 83400
L4 84 14.6
24540 28630 32720 36810 40900 44990 49080 33360 38920 44480 50040 55600 61160 66720
K98MC-C L1 104 18.2
34260 39970 45680 51390 57100 62810 68520 46560 54320 62080 69840 77600 85360 93120
Bore 980 mm
L2
104
14.6
27420 31990 36560 41130 45700 50270 54840 37260 43470 49680 55890 62100 68310 74520
Stroke 2400 mm
L3
94
18.2
30960 36120 41280 46440 51600 56760 61920 42120 49140 56160 63180 70200 77220 84240
L4 94 14.6
24780 28910 33040 37170 41300 45430 49560 33720 39270 44880 50490 56100 61710 67320
S90MC-C L1 76 19.0
29340 34230 39120 44010 39900 46550 53200 59850
Bore 900 mm
L2
76
15.2
23520 27440 31360 35280 31980 37300 42640 47970
Stroke 3188 mm
L3
61
19.0
23580 27510 31440 35370 32060 37400 42750 48090
L4 61 15.2
18840 21980 25120 28260 25610 29880 34150 38420
L90MC-C L1 83 19.0
29340 34230 39120 44010 48900 53790 58680 39480 46480 53120 59760 66400 73040 79680
Bore 900 mm
L2
83
12.2
18780 21910 25040 28170 31300 34430 37560 25500 29750 34000 38250 42500 46750 51000
Stroke 2916 mm
L3
62
19.0
21900 25550 29200 32850 36500 40150 43800 29760 34720 39680 44640 49600 54560 59520
L4 62 12.2
14040 16380 18720 21060 23400 25740 28080 19080 22260 25440 28620 31800 34980 38160
K90MC L1
94
18.0
18280 22850 27420 31990 36560 41130 45700 50270 54840 24880 31100 37320 43540 49760 55980 62200 68420 74640
Bore 900 mm
L2
94
11.5
11700 14650 17580 20510 23440 26370 29300 32230 35160 15920 19900 23880 27860 31840 35820 39800 43780 47760
Stroke 2550 mm
L3
71
18.0
13720 17150 20580 24010 27440 30870 34300 37730 41160 18640 23300 27960 32620 37280 41940 46600 51260 55920
L4
71
11.5
8800 11000 13200 15400 17600 19800 22000 24200 26400 11960 14950 17940 20930 23920 26910 29900 32890 35880
Fig. 1.03a: Power and speed
430100 400
1.03
178 46 78-9.0 198 22 27
MAN B&W Diesel A/S
Engine Selection Guide
kW Power
BHP
Engine type
Layout point
Engine speed
Mean effective pressure
Number of cylinders
r/min bar
4
5
6
7
8
9
10 11 12
K90MC-C L1 104 18.0
27360 31920 36480 41040 45600 50160 54720 37260 43470 49680 55890 62100 68310 74520
Bore 900 mm
L2
104
14.4
21900 25550 29200 32850 36500 40150 43800 29820 34790 39760 44730 49700 54670 59640
Stroke 2300 mm
L3
89
18.0
23280 27160 31040 34920 38800 42680 46560 31620 36890 42160 47430 52700 57970 63240
L4 89 14.4
18600 21700 24800 27900 31000 34100 37200 25320 29540 33760 37980 42200 46420 50640
S80MC-C L1 76 19.0
23280 27160 31040 31680 36960 42240
Bore 800 mm
L2
76
12.2
14880 17360 19840 20280 23660 27040
Stroke 3200 mm
L3
57
19.0
17460 20370 23280 23760 27720 31680
L4 57 12.2
11160 13020 14880 15180 17710 20240
S80MC L1 79 19.0
15360 19200 23040 26880 30720 34560 20880 26100 31320 36540 41760 46980
Bore 800 mm
L2
79
12.2
9840 12300 14760 17220 19680 22140 13360 16700 20040 23380 26720 30060
Stroke 3056 mm
L3
59
19.0
11480 14350 17220 20090 22960 25830 15600 19500 23400 27300 31200 35100
L4 59 12.2
7360 9200 11040 12880 14720 16560 10040 12550 15060 17570 20080 22590
L80MC L1
93
18.0
14560 18200 21840 25480 29120 32760 36400 40040 43680 19760 24700 29640 34580 39520 44460 49400 54340 59280
Bore 800 mm
L2
93
11.5
9320 11650 13980 16310 18640 20970 23300 25630 27960 12640 15800 18960 22120 25280 28440 31600 34760 37920
Stroke 2592 mm
L3
70
18.0
10960 13700 16440 19180 21920 24660 27400 30140 32880 14880 18600 22320 26040 29760 33480 37200 40920 44640
L4
70
11.5
7000 8750 10500 12250 14000 15750 17500 19250 21000 9520 11900 14280 16660 19040 21420 23800 26180 28560
K80MC-C L1 104 18.0
21660 25270 28880 32490 36100 39710 43320 29400 34300 39200 44100 49000 53900 58800
Bore 800 mm
L2
104
14.4
17340 20230 23120 26010 28900 31790 34680 23520 27440 31360 35280 39200 43120 47040
Stroke 2300 mm
L3
89
18.0
18540 21630 24720 27810 30900 33990 37080 25200 29400 33600 37800 42000 46200 50400
L4 89 14.4
14820 17290 19760 22230 24700 27170 29640 20160 23520 26880 30240 33600 36960 40320
Fig. 1.03b: Power and speed
430100 400
1.04
178 46 78-9.0 198 22 27
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