$RJ49M78
$RJ49M78
7G50ME-C9.5 HL
Project name: Практична Робота №2
Report made by: Греков Ярослав
DISCLAIMER: This engine has been replaced by a newer and more efficient engine. Data from
replaced engines should only be used for comparison and processing existing or repeat orders. For
new projects, the latest version of the engine catalogue must be used.
The Light Running Margin (LRM) shown is 5%. Recommended value is 4-7%, for special cases up to 10%. The LRM should be
evaluated for each ship project depending on for example: In-service increase of vessel resistance, ship manoeuvring requirements,
additional engine load due to power take-out (PTO) and possible requirements related to a barred speed range (short passing time).
Page 1 of 11
Report created by Греков Ярослав
7G50ME-C9.5 HL
SMCR: 10,640 kW at 100.0 r/min, 1 x MAN TCT50-ML.
Turbocharger specifications
Turbocharger efficiency High efficiency
Exhaust gas bypass Without EGB*)
Number of turbochargers and make/type 1 x MAN TCT50-ML
Turbocharger lubricating Common (system oil)
Exhaust gas scrubber for high sulphur Not installed
Exhaust back pressure (Tier II) 30 mbar
*) This engine can be equipped with Economizer Energy Control (EEC) for increasing exhaust gas temperatures. This requires ordering
an EGB valve, because it is not standard on this engine.
Tier II
SMCR NCR
Exhaust gas amount kg/s kg/s
ISO 22.7 21.7
Tropical 21.0 20.1
Specified 23.6 22.6
Tier II
Exhaust gas SMCR NCR
temperature oC oC
Tier II
Turbocharger air SMCR NCR
consumption kg/s kg/s
ISO 22.2 21.2
Tropical 20.5 19.6
Specified 23.1 22.1
ISO, tropical and specified conditions are listed in the References and tolerances section.
Miscellaneous
Jacket water expansion tank*) 10 %
Recommended engine room ventilation flow**) 39 m3/s
Motor rating, auxiliary blowers 2 x 38 kW
*) Jacket water expansion tank volume given in percent of the total jacket water volume.
**) This air flow is given as 200% of the main engine combustion air flow. Besides the combustion air flow (100%), it includes cooling air
for main engine radiation heat (50%), an estimate of combustion air for gensets/boilers and cooling air for their radiation heat (25%) and
an estimate of radiated heat from other equipment (25%). Please check with ISO 8861:1998(E) for details.
Overhaul heights
H1: Normal lifting procedure 10,775 mm
H2: Reduced height lifting procedure 10,075 mm
H3: Tilted lifting with double jib crane 9,775 mm
Crane capacities
Normal lifting procedure 3.2 t
With electrical double jib crane 2 x 1.6 t
Masses
Mass of main engine, dry 275 t
Mass of water and oil in engine 2.1 t
The real engine length at crankshaft centreline level may be larger than the minimum length of the engine, as it depends on the vibration
conditions of the main engine and shaft system, i.e. on whether a vibration damper and/or moment compensator needs to be installed.
Indicated values are for guidance only and are not binding.
ISO ambient conditions (ambient air: 25 °C, scavenge air coolant: 25 °C)
Load Power Speed SFOC Exh. gas Exh. gas*) Steam**)
% SMCR kW r/min g/kWh kg/s oC kg/h
100 10,640 100.0 164.6 22.7 232 1,570
95 10,108 98.3 163.4 21.9 226 1,370
90 9,576 96.5 162.4 21.1 220 1,210
85 9,044 94.7 161.6 20.3 216 1,080
80 8,512 92.8 161.0 19.4 214 990
75 7,980 90.9 160.7 18.5 212 930
70 7,448 88.8 160.6 17.6 213 900
65 6,916 86.6 161.1 16.6 214 890
60 6,384 84.3 162.0 15.6 217 900
55 5,852 81.9 163.1 14.5 222 930
50 5,320 79.4 164.2 13.3 227 970
45 4,788 76.6 165.5 12.1 235 1,020
40 4,256 73.7 166.8 10.9 245 1,060
35 3,724 70.5 168.2 9.6 253 1,070
30 3,192 66.9 169.2 9.4 217 600
25 2,660 63.0 171.2 8.3 213 500
20 2,128 58.5 174.2 7.1 209 390
15 1,596 53.1 179.2 6.0 201 250
10 1,064 46.4 187.2 4.3 179 0
Tropical ambient conditions (ambient air: 45 °C, scavenge air coolant: 36 °C)
Load Power Speed SFOC Exh. gas Exh. gas*) Steam**)
% SMCR kW r/min g/kWh kg/s oC kg/h
100 10,640 100.0 166.3 21.0 265 2,190
95 10,108 98.3 165.1 20.3 258 2,000
90 9,576 96.5 164.1 19.6 252 1,830
85 9,044 94.7 163.3 18.8 248 1,690
80 8,512 92.8 162.7 18.0 245 1,590
75 7,980 90.9 162.4 17.2 244 1,510
70 7,448 88.8 162.3 16.3 244 1,450
65 6,916 86.6 162.9 15.4 246 1,420
60 6,384 84.3 163.7 14.4 249 1,410
55 5,852 81.9 164.8 13.4 254 1,410
50 5,320 79.4 166.0 12.3 260 1,410
45 4,788 76.6 167.2 11.2 269 1,430
40 4,256 73.7 168.6 10.1 279 1,450
35 3,724 70.5 170.0 8.9 288 1,410
30 3,192 66.9 171.0 8.7 249 940
25 2,660 63.0 173.1 7.7 245 810
20 2,128 58.5 176.1 6.6 241 660
15 1,596 53.1 181.1 5.5 232 490
10 1,064 46.4 189.2 4.0 209 180
Specified ambient conditions (ambient air: 10 °C, scavenge air coolant: 10 °C)
Load Power Speed SFOC Exh. gas Exh. gas*) Steam**)
% SMCR kW r/min g/kWh kg/s oC kg/h
100 10,640 100.0 162.6 23.6 207 980
95 10,108 98.3 161.4 22.8 201 800
90 9,576 96.5 160.4 22.0 195 660
85 9,044 94.7 159.7 21.1 192 550
80 8,512 92.8 159.1 20.2 189 470
75 7,980 90.9 158.8 19.3 188 430
70 7,448 88.8 158.6 18.3 188 420
65 6,916 86.6 159.2 17.3 190 430
60 6,384 84.3 160.1 16.2 193 460
55 5,852 81.9 161.1 15.1 197 510
50 5,320 79.4 162.2 13.9 202 570
45 4,788 76.6 163.5 12.6 210 650
40 4,256 73.7 164.8 11.3 219 730
35 3,724 70.5 166.2 10.0 227 760
30 3,192 66.9 167.2 9.8 193 300
25 2,660 63.0 169.2 8.7 189 210
20 2,128 58.5 172.2 7.4 185 110
15 1,596 53.1 177.1 6.2 177 0
10 1,064 46.4 185.0 4.5 157 0
Comments / details:
SFOC: Specific Fuel Oil Consumption (LCV: 42,700 kJ/kg) *) Mixed exhaust gas temperature after turbocharger.
Loads below 50% are associated with larger tolerances. **) Guiding steam production capacity at 7.0 bar(a) with variable
pinch point temperature, matched to 15°C at 85% load in Tier II
and ISO. Contact boiler maker for actual steam production.
1 2 3 4 5 6 7 8
ISO ambient conditions (ambient air: 25.0 °C, scavenge air coolant: 25.0 °C)
100 22.2 3.97 37 3,710 1,450 900 0.0
95 21.5 3.79 36 3,440 1,400 870 0.0
90 20.7 3.61 35 3,160 1,350 830 0.0
85 19.9 3.43 34 2,900 1,290 790 0.0
80 19.1 3.29 33 2,670 1,240 760 0.0
75 18.2 3.16 32 2,440 1,180 730 0.0
70 17.3 2.96 31 2,170 1,130 690 0.0
65 16.3 2.76 30 1,900 1,080 660 0.0
60 15.3 2.56 30 1,640 1,020 630 0.0
55 14.2 2.37 29 1,390 970 600 0.0
50 13.1 2.17 28 1,140 910 570 0.0
45 11.9 1.99 27 920 860 540 0.0
40 10.7 1.83 26 720 810 500 0.0
35 9.4 1.68 33 550 750 470 0.0
30 9.3 1.54 32 450 700 440 0.0
25 8.2 1.42 32 320 650 400 0.0
Tropical ambient conditions (ambient air: 45.0 °C, scavenge air coolant: 36.0 °C)
100 20.5 3.78 48 3,700 1,470 910 36.3
95 19.8 3.60 47 3,420 1,420 870 35.4
90 19.1 3.43 46 3,160 1,360 840 34.2
85 18.4 3.26 45 2,890 1,310 800 32.7
80 17.6 3.13 44 2,670 1,250 770 31.3
75 16.8 3.01 43 2,440 1,200 730 29.7
70 16.0 2.82 42 2,170 1,140 700 27.5
65 15.1 2.63 41 1,910 1,090 670 25.2
60 14.1 2.44 41 1,650 1,030 640 22.8
55 13.1 2.25 40 1,400 980 600 20.2
50 12.1 2.06 39 1,150 920 570 17.6
45 11.0 1.90 38 940 870 540 15.0
40 9.9 1.74 37 740 820 510 12.5
35 8.7 1.60 44 560 760 480 10.0
30 8.6 1.47 43 460 710 440 8.6
25 7.6 1.35 43 340 650 410 6.4
Specified ambient conditions (ambient air: 10.0 °C, scavenge air coolant: 10.0 °C)
100 23.1 4.04 22 3,720 1,440 890 2.2
95 22.4 3.86 21 3,450 1,380 860 2.3
90 21.6 3.68 20 3,180 1,330 820 2.2
85 20.7 3.49 19 2,910 1,280 780 2.1
80 19.9 3.35 18 2,680 1,220 750 2.1
75 18.9 3.22 17 2,460 1,170 720 2.0
70 18.0 3.02 16 2,190 1,120 680 1.7
65 17.0 2.81 15 1,920 1,060 650 1.5
60 15.9 2.61 15 1,660 1,010 620 1.2
55 14.8 2.41 14 1,400 960 590 0.9
50 13.6 2.21 13 1,160 900 560 0.6
45 12.4 2.03 12 940 850 530 0.4
40 11.1 1.87 11 740 800 500 0.2
35 9.8 1.71 18 560 740 470 0.0
30 9.6 1.57 17 460 690 430 0.0
25 8.6 1.44 17 330 640 400 0.0
B) Airborne sound pressure levels - with standard noise reduction (NR) countermeasures (2x10-5 Pa).
Expected mean sound pressure octave spectrum levels, i.e. the average spatial noise values at a distance of 1 metre from the engine.
Prescribed measuring surface area is 321.2 m².
C) Air-borne sound pressure levels - with additional noise reduction (NR) countermeasures (2x10-5 Pa).
Expected mean sound pressure octave spectrum levels, i.e. the average spatial noise values at a distance of 1 metre from the engine.
Prescribed measuring surface area is 321.2 m².
Other additional noise reduction countermeasures are also available. The noise figures given are in accordance with the CIMAC
recommendations for measurements of the overall noise for reciprocating engines. The average levels will, depending on the actual
engine room configuration, be 1-5 dB higher when the engine is installed in the engine room.
Reference Data
Ambient Scavenge air coolant temp.*) Ambient air temp. Rel. air humidity Barometric pressure
condition °C °C % mbar
ISO**) 25 25 30 1,000
Tropical 36 45 60 1,000
Specified 10 10 60 1,000
*) With a central cooling system, the sea water will be 4 oC lower than these temperatures.
**) Refers to ISO 3046-1 2002(E) and ISO 15550:2016(E).
Tolerances
Specific Fuel Oil Consumption (SFOC) tolerance at SMCR +/- 5%
Exhaust gas amount tolerance +/- 5%
Exhaust gas temperature tolerance +/- 15°C
Guarantee point
Guarantee point (same as NCR) 93.46% of SMCR
Guarantee point SFOC tolerance 5%
13b22084-4a34-4a8b-8c81-3162ccfcb9ce
This ID must be used by an MAN-ES licensee when creating a DSO.