MAN Diesel & Turbo Main Engine Room Data Main Engine Compliance 6S80MC6.1-TI IMO-NOx Tier I Project name BrasNave 25 Project type Project number 3 Date 2010 Yard Country Brasil Made by BrasNave Department Eng. Naval
Specified Main Engine and Ratings Further reading: www.manbw.com/papers/basic_principles_of_ship_propulsion.pdf p. 20-29 Specified Main Engine and Ratings Turbocharger/engine version high eff.t/c Type of propeller Fixed pitch Cylinder oil lubricator type Alpha ACC (power control) Sulphur content in fuel % 3.0 Nominal Maximum Continuous Rating (NMCR) Nominal engine power (NMCR) BHP 29,694 Nominal engine speed r/min 79.0 Mean effective pressure bar 18.0 Mean piston speed m/s 8.0 Specified MCR (SMCR) Engine shaft power BHP 23,850 Engine speed r/min 76.0 Mean effective pressure bar 15.0 Mean piston speed m/s 7.7 Optimising Point Optimising point % of SMCR 85.0 Engine shaft power BHP 20,272 Engine speed r/min 72.0 Normal Continuous Rating (NCR) Service power % of SMCR 100.0 Engine shaft power BHP 23,850 Engine speed r/min 76.0 Page 2
Ambient reference conditions ISO Conditions Scavenge air coolant temperature C 25.0 Ambient air temperature C 25.0 Barometric pressure mbar 1,000 Exhaust gas back pressure mmwc 300 Tropical conditions Sea water temperature C 32.0 Central water temperature C 36.0 Ambient air temperature C 45.0 Barometric pressure mbar 1,000 Specified ambient conditions Scavenge air coolant temperature C 10.0 Ambient air temperature C 10.0 Barometric pressure mbar 1,000 Further reading: www.manbw.com/papers/influence_of_ambient_temperature_conditions.pdf p. 7-11 Page 3
Expected SFOC, Lube Oil Consumption, Air and Exhaust gas data Tolerances Reference LCV of fuel kj/kg 42,700 SFOC tolerance (optimising point) % +/- 5 Exhaust gas amount tolerance % +/- 5 Exhaust gas temperature tolerance C -/+ 15 ISO ambient conditions Specific Fuel Oil Consumption Nominal Maximum Continuous Rating (NMCR) g/bhph 123.0 SMCR g/bhph 120.1 Optimising point g/bhph 116.8 NCR g/bhph 120.1 Exhaust Gas Amount SMCR kg/h 160,800 Optimising point kg/h 142,300 NCR kg/h 160,800 Exhaust Gas Temperature SMCR C 236 Optimising point C 225 NCR C 236 Air consumption SMCR kg/s 43.9 Optimising point kg/s 38.9 NCR kg/s 43.9 Tropical ambient conditions Specific Fuel Oil Consumption SMCR g/bhph 122.4 Optimising point g/bhph 119.0 NCR g/bhph 122.4 Exhaust Gas Amount SMCR kg/h 151,000 Optimising point kg/h 133,600 NCR kg/h 151,000 Exhaust Gas Temperature SMCR C 268 Optimising point C 257 NCR C 268 Air consumption SMCR kg/s 41.1 Optimising point kg/s 36.4 NCR kg/s 41.1 Page 4
Specified ambient conditions Specific Fuel Oil Consumption SMCR g/bhph 118.1 Optimising point g/bhph 114.9 NCR g/bhph 118.1 Exhaust Gas Amount SMCR kg/h 166,100 Optimising point kg/h 147,000 NCR kg/h 166,100 Exhaust Gas Temperature SMCR C 210 Optimising point C 200 NCR C 210 Air consumption SMCR kg/s 45.4 Optimising point kg/s 40.2 NCR kg/s 45.4 Consumption of Lubrication Oils System Oil Consumption per 24 hours kg/24h 45.1 Cylinder Oil (SLOC) SMCR g/bhph 0.44 Optimising point g/bhph 0.44 NCR g/bhph 0.44 Page 5
Layout of Systems Necessary Capacities of Auxiliary Machinery (SMCR) Cooling water system Central cooling Seawater inlet temperature C 32.0 Central water outlet temperature C 36.0 Tropical ambient air temperature C 45.0 Lubricating oil system Separate camshaft L.O. system Separate turbocharger L.O. system No No Pumps Fuel oil circulating pump Flow capacity m³/h 9.1 Pump head bar 6.0 Fuel oil supply pump Flow capacity m³/h 5.3 Pump head bar 4.0 Jacket water pump Flow capacity m³/h 165.0 Pump head bar 3.0 Central cooling water pump Flow capacity m³/h 430.0 Pump head bar 2.5 Seawater pump Flow capacity m³/h 520.0 Pump head bar 2.5 Lubricating oil pump Flow capacity m³/h 470.0 Pump head bar 4.6 Page 6
Coolers Scavenge air coolers Heat dissipation kw 6,320 Central water flow m³/h 219 Lubricating oil cooler Heat dissipation kw 1,660 Lubricating oil flow m³/h 470 Central water flow m³/h 211 Jacket water cooler Heat dissipation kw 2,660 Jacket water flow m³/h 165 Central water flow m³/h 211 Central cooler Heat dissipation kw 10,640 Central water flow m³/h 430 Seawater flow m³/h 520 Fuel oil preheater Heat capaity kw 240 The pump heads stated are for guidance only, and depend on the actual pressure drop across coolers, filters, etc. in the systems. Pertaining cooling water flow diagram, temperatures, viscosities and pressures for pumps and coolers, see "Engine Project Guide". Page 7
Starting Air System, Engine dimensions, Tanks, etc. Starting air system, 30.0 bar g Reversible engine Receiver volume (12 starts) m³ 2 x 11.50 Compressors (total) m³/h 690.0 Main engine dimensions Dimensions Length excl. tuning wheel, tanktop mm 11,377 Min length excl. tuning wheel, c/l mm 11,377 Max length incl. tuning wheel, c/ll mm 11,658 Cylinder distance mm 1,424 Width of bedplate mm 4,824 Distance, foot - crankshaft c/ll mm 1,736 Overhaul Normal lift, c/l - crane hook mm 14,125 Crane capacity, normal lifting procedure t 8.00 Double jib crane, c/l - deck beam mm 12,850 Crane capacity, double jib crane t 2 x 4.00 Weight Weight of main engine, dry t 885.0 Weight of water and oil in engine t 15.2 The real engine length at crankshaft centreline level (c/l) may be between the above min and max lengths, and depends on the vibration conditions of the main engine and shaft system, i.e. on whether a vibration damper need to be installed. The mass can vary up to 10% depending on the design and options chosen Page 8
Dimensions of tanks, centrifuges and aux. blowers Fuel oil system Marine diesel oil service tank, 4 hour m³ 13.0 Fuel oil settling tanks, 2 x 12 hour m³ 2 x 40.0 Fuel oil centrifuge, 98 C l/h 5,897 Fuel oil service tank, 6 h/95 C m³ 20.0 The capacity of the F.O. centrifuge(s) is for guidance only. Actual capacity should be given by the maker Lubrication oil system Lube oil storage tanks,(2x3 months) m³ 2 x 5.4 Lube oil centrifuge, 95 C l/h 2,970 Lube oil bottom (sump) tank, appr. m³ 28.5 Cylinder oil system Cylinder oil storage tanks m³ 2 x 30.0 Cylinder oil service tank m³ 2.4 Various drain tanks Stuffing box drain tank m³ 0.30 Scavenge air drain tank m³ 0.40 Air cooler cleaning unit Air cooler cleaning tank m³ 0.60 Capacity of pump m³/h 2.00 Jacket water Expansion tank for jacket water m³ 1.25 Auxiliary blower(s) Electric motor rating of aux.blower(s) kw 2 x 83 Page 9
Ambient air suction temperature: 25.0 C Cooling water temperature: 25.0 C Tables of SFOC and Exhaust Gas Data Part Load Data at ISO Ambient Conditions Load Power Speed SFOC Exh. gas amount Exh. gas temp. % of SMCR BHP r/min g/bhph kg/h C 100.0 23,850 76.0 120.1 160,800 235.5 95.0 22,658 74.7 118.9 154,700 230.6 90.0 21,465 73.4 117.8 148,500 227.0 85.0 20,272 72.0 116.8 142,300 224.7 80.0 19,080 70.6 116.1 135,900 223.7 75.0 17,888 69.1 115.5 129,200 224.1 70.0 16,695 67.5 115.2 122,400 225.7 65.0 15,502 65.8 115.2 115,200 228.7 60.0 14,310 64.1 115.6 107,800 233.0 55.0 13,118 62.3 116.3 100,000 238.6 50.0 11,925 60.3 117.1 91,900 245.5 45.0 10,732 58.2 118.3 83,600 253.7 40.0 9,540 56.0 119.6 74,900 261.8 35.0 8,348 53.6 121.1 66,000 267.8 Page 10
Part Load Data at Tropical Ambient Conditions Load Power Speed SFOC Exh. gas amount Exh. gas temp. % of SMCR BHP r/min g/bhph kg/h C 100.0 23,850 76.0 122.4 151,000 268.0 95.0 22,658 74.7 121.1 145,200 263.1 90.0 21,465 73.4 120.0 139,500 259.5 85.0 20,272 72.0 119.0 133,600 257.2 80.0 19,080 70.6 118.3 127,600 256.3 75.0 17,888 69.1 117.7 121,300 256.6 70.0 16,695 67.5 117.3 114,900 258.3 65.0 15,502 65.8 117.4 108,200 261.2 60.0 14,310 64.1 117.8 101,200 265.5 55.0 13,118 62.3 118.4 93,900 271.1 50.0 11,925 60.3 119.3 86,300 278.0 45.0 10,732 58.2 120.5 78,500 286.5 40.0 9,540 56.0 121.8 70,300 295.1 35.0 8,348 53.6 123.4 62,000 301.5 Ambient air suction temperature: 45.0 C Cooling water temperature: 36.0 C Page 11
Part Load Data at Specified Ambient Conditions Load Power Speed SFOC Exh. gas amount Exh. gas temp. % of SMCR BHP r/min g/bhph kg/h C 100.0 23,850 76.0 118.1 166,100 210.5 95.0 22,658 74.7 116.9 159,800 205.6 90.0 21,465 73.4 115.8 153,400 202.0 85.0 20,272 72.0 114.9 147,000 199.7 80.0 19,080 70.6 114.1 140,300 198.7 75.0 17,888 69.1 113.6 133,500 199.1 70.0 16,695 67.5 113.3 126,400 200.7 65.0 15,502 65.8 113.3 119,000 203.7 60.0 14,310 64.1 113.7 111,300 208.0 55.0 13,118 62.3 114.3 103,300 213.6 50.0 11,925 60.3 115.2 95,000 220.5 45.0 10,732 58.2 116.3 86,300 228.4 40.0 9,540 56.0 117.6 77,400 236.2 35.0 8,348 53.6 119.1 68,200 241.9 Ambient air suction temperature: 10.0 C Cooling water temperature: 10.0 C Page 12
Tables of Cooler Heat Engine load (% SMCR) Scavenge air amount +/- 5% (kg/h) Jacket water cooler heat -15/+0% (kw) Engine power (BHP) Scavenge air pressure (bar abs) Main lubrication oil heat (kw) Engine speed (r/min) Scavenge air temperature BEFORE air cooler ( C) Condensed water (t/24h) Scavenge air temperature AFTER air cooler ( C) Scavenge air cooler heat (kw) ISO Ambient Conditions Air suction temperature: 25.0 C Cooling water temperature: 25.0 C % BHP r/min kg/h bar (abs) C C kw kw kw t/24h 100.0 23,850 76.0 157,900 3.4 175.0 37.0 6,120 2,350 1,470 0.0 95.0 22,658 74.7 152,000 3.2 169.0 36.0 5,670 2,260 1,450 0.0 90.0 21,465 73.4 146,000 3.1 162.0 34.0 5,220 2,170 1,420 0.0 85.0 20,272 72.0 139,900 2.9 155.0 33.0 4,780 2,070 1,400 0.0 80.0 19,080 70.6 133,700 2.8 148.0 32.0 4,340 1,980 1,380 0.0 75.0 17,888 69.1 127,100 2.6 141.0 31.0 3,890 1,890 1,350 0.0 70.0 16,695 67.5 120,500 2.5 133.0 30.0 3,460 1,800 1,320 0.0 65.0 15,502 65.8 113,400 2.3 125.0 29.0 3,020 1,710 1,290 0.0 60.0 14,310 64.1 106,100 2.2 116.0 29.0 2,600 1,620 1,250 0.0 55.0 13,118 62.3 98,500 2.0 107.0 28.0 2,180 1,530 1,210 0.0 50.0 11,925 60.3 90,500 1.9 98.0 27.0 1,780 1,440 1,170 0.0 45.0 10,732 58.2 82,300 1.7 88.0 27.0 1,410 1,350 1,120 0.0 40.0 9,540 56.0 73,800 1.6 79.0 26.0 1,090 1,260 1,060 0.0 35.0 8,348 53.6 65,000 1.5 70.0 33.0 810 1,170 1,000 0.0 30.0 7,155 50.9 55,900 1.4 62.0 33.0 570 1,080 930 0.0 25.0 5,962 47.9 46,800 1.3 55.0 32.0 380 990 850 0.0 Tropical Ambient Conditions Air suction temperature: 45.0 C Cooling water temperature: 36.0 C 100.0 23,850 76.0 148,100 3.2 200.0 48.0 6,320 2,400 1,500 54.2 95.0 22,658 74.7 142,500 3.1 194.0 47.0 5,860 2,300 1,470 54.3 90.0 21,465 73.4 136,900 3.0 186.0 45.0 5,410 2,210 1,450 53.8 85.0 20,272 72.0 131,200 2.8 179.0 44.0 4,960 2,110 1,420 52.5 80.0 19,080 70.6 125,300 2.7 172.0 43.0 4,510 2,020 1,400 50.7 75.0 17,888 69.1 119,200 2.5 164.0 42.0 4,060 1,930 1,370 48.2 70.0 16,695 67.5 112,900 2.4 156.0 41.0 3,610 1,830 1,340 45.2 65.0 15,502 65.8 106,400 2.3 147.0 40.0 3,180 1,740 1,310 41.8 60.0 14,310 64.1 99,500 2.1 138.0 40.0 2,740 1,650 1,270 37.9 55.0 13,118 62.3 92,300 2.0 129.0 39.0 2,320 1,560 1,230 33.6 50.0 11,925 60.3 84,900 1.8 119.0 38.0 1,910 1,470 1,180 28.9 45.0 10,732 58.2 77,200 1.7 109.0 38.0 1,540 1,370 1,130 24.1 40.0 9,540 56.0 69,100 1.6 99.0 44.0 1,200 1,280 1,080 4.8 35.0 8,348 53.6 61,000 1.5 90.0 44.0 910 1,190 1,020 3.3 30.0 7,155 50.9 52,500 1.4 82.0 44.0 670 1,100 950 2.0 25.0 5,962 47.9 43,800 1.3 75.0 43.0 470 1,010 870 0.9 Specified Ambient Conditions Air suction temperature: 10.0 C Cooling water temperature: 10.0 C 100.0 23,850 76.0 163,300 3.4 154.0 22.0 6,040 2,310 1,450 0.0 95.0 22,658 74.7 157,200 3.2 148.0 21.0 5,600 2,220 1,430 0.0 90.0 21,465 73.4 150,900 3.1 142.0 19.0 5,160 2,130 1,400 0.0 85.0 20,272 72.0 144,700 2.9 135.0 18.0 4,730 2,040 1,380 0.0 80.0 19,080 70.6 138,100 2.8 128.0 17.0 4,290 1,950 1,360 0.0 75.0 17,888 69.1 131,500 2.6 121.0 16.0 3,850 1,860 1,330 0.0 70.0 16,695 67.5 124,500 2.5 113.0 15.0 3,420 1,770 1,300 0.0 65.0 15,502 65.8 117,200 2.3 106.0 14.0 3,000 1,680 1,270 0.0 60.0 14,310 64.1 109,700 2.2 98.0 14.0 2,580 1,590 1,230 0.0 55.0 13,118 62.3 101,800 2.0 89.0 13.0 2,170 1,500 1,190 0.0 50.0 11,925 60.3 93,600 1.9 80.0 12.0 1,770 1,410 1,150 0.0 45.0 10,732 58.2 85,100 1.8 71.0 12.0 1,410 1,330 1,100 0.0 40.0 9,540 56.0 76,300 1.6 62.0 11.0 1,080 1,240 1,040 0.0 35.0 8,348 53.6 67,200 1.5 54.0 18.0 800 1,150 980 0.0 30.0 7,155 50.9 57,800 1.4 46.0 18.0 570 1,060 920 0.0 25.0 5,962 47.9 48,400 1.3 39.0 17.0 380 970 840 0.0 Scavenge air pressue and air cooler data for guidance only - not to be used for dimensioning of turbochargers and scavenge air coolers. See the design specification of the engine. Page 13
SMCR NCR (100.0% of SMCR) Notes Typical noise and vibration levels Octave band centre freq. 31.5 Hz 63.0 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz db(lin) db(a) Max db(a) A) Exhaust gas system (2x10-5 Pa) 125.0 118.9 111.6 108.3 106.1 100.1 89.3 79.6 72.0 126.2 106.6 - B) Standard noise reduction (2x10-5 Pa) 99.1 98.8 98.6 98.0 98.4 98.9 97.6 93.2 86.0 107.2 103.6 107.2 C) Additional noise reduction (2x10-5 Pa) 98.9 97.2 96.5 96.2 96.5 96.9 94.8 88.7 82.3 105.4 101.1 105.4 D) Structureborne vibrations (5x10-8 m/s) 76.2 73.7 70.9 69.7 65.9 60.2 53.3 45.4 39.4 - - - Octave band centre freq. 31.5 Hz 63.0 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz db(lin) db(a) Max db(a) A) Exhaust gas system (2x10-5 Pa) 125.0 118.9 111.6 108.3 106.1 100.1 89.3 79.6 72.0 126.2 106.6 - B) Standard noise reduction (2x10-5 Pa) 99.1 98.8 98.6 98.0 98.4 98.9 97.6 93.2 86.0 107.2 103.6 107.2 C) Additional noise reduction (2x10-5 Pa) 98.9 97.2 96.5 96.2 96.5 96.9 94.8 88.7 82.3 105.4 101.1 105.4 D) Structureborne vibrations (5x10-8 m/s) 76.2 73.7 70.9 69.7 65.9 60.2 53.3 45.4 39.4 - - - A) Sound pressure levels from exhaust gas system. The expected sound pressure level at 1 metre from the edge of the exhaust gas pipe opening at an angle of 30 degrees to the direction of the gas flow and valid for a normal exhaust gas system - but without a boiler and silencer. B) Airborne sound pressure levels - with standard noise reduction countermeassures. Expected mean sound pressure octave spectrum levels, i.e. the average spartial noise values at a distance of 1 metre from the engine. Prescribed measuring surface area is 105.4 m². C) Air-borne sound pressure levels - with additional noise reduction countermeassures. 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 105.4 m². Addtional noise reduction countermeasuers, e.g.: 1. Extra good turbocharger air intake silencer(s) 2. External sound insulation of scavenge air receiver 3. External sound insulation of scavenge air cooler(s). 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. D) Structureborne vibration levels Expected mean velocity octave spectrum levels at the engine base plate as installed on board the ship. Based on an average engine foundation of a ship, and may only be used as a rough estimate as the velocity levels will depend on the actual foundation used.if the vibration velocity levels are referred to 10-9 m/s instead of 5x10-8 m/s, the calculated db figures will be 34.0 db higher than above stated. Further reading: www.manbw.com/papers/diesel_engines_and_the_enviroment_noise.pdf Page 14
Alternative Engines and Turbochargers, Further Reading Alternative Tier I engines SMCR: 23,850 BHP at 76.0 rpm. Optimization point: 85.0% (or as close as possible) Nominal MCR Specified MCR Engine room Power RPM Lowest opt point = selected engine = lowest value = highest value = selected turbocharger s.w. = seawater c.w. = central water Opt point SFOC (ISO) Overhaul height H 1 Overhaul Length min Width Weight height H 3 [BHP] [% SMCR] [% SMCR] [g/bhph] [mm] [mm] [mm] [mm] [t] 7S70MC-C7.1-TI 29,596 91.0 85.0 85.0 124.5 12,475 11,425 10,161 4,390 624 7S70ME-C7.1-GI-TI 29,596 91.0 85.0 85.0 124.4 12,550 11,425 10,161 4,390 587 7S70ME-C7.1-TI 29,596 91.0 85.0 85.0 124.4 12,550 11,425 10,161 4,390 587 8S70MC6.1-TI 30,568 91.0 85.0 85.0 123.7 12,450 11,200 12,161 4,250 722 8S70MC-C7.1-TI 33,824 91.0 85.0 85.0 121.4 12,475 11,425 11,351 4,390 704 8S70ME-C7.1-TI 33,824 91.0 85.0 85.0 121.3 12,550 11,425 11,351 4,390 662 8S70ME-C7.1-GI-TI 33,824 91.0 85.0 85.0 121.3 12,550 11,425 11,351 4,390 662 6S80MC6.1-TI 29,694 79.0 85.0 85.0 120.1 14,125 12,850 11,377 4,824 885 6S80MC-C7.1-TI 31,650 76.0 85.0 85.0 118.0 14,325 12,950 11,229 5,000 872 6S80ME-C7.1-TI 31,650 76.0 85.0 85.0 117.9 14,325 12,950 11,229 5,000 820 7S80MC6.1-TI 34,643 79.0 85.0 85.0 117.1 14,125 12,850 12,581 4,824 996 7S80MC-C7.1-TI 36,925 76.0 98.2 98.2 114.3 14,325 12,950 12,653 5,000 981 7S80ME-C7.1-TI 36,925 76.0 98.2 98.2 114.4 14,325 12,950 12,653 5,000 922 Alternative Turbochargers Central cool. water pump Seawater pump flow Lub. oil flow Lub. oil cooler Jacket water Central cooler cooler flow, heat diss. oil flow c.w. flow c.w. heat diss. c.w. flow s.w. flow Min. motor rating for aux blowers [m³/h] [m³/h] [m³/h] [kw] [m³/h] [m³/h] [m³/h] [kw] [m³/h] [m³/h] [kw] 1 x TCA88-21 420 520 470 1,550 470 201 201 10,530 420 520 2 x 83.0 2 x TCA66-21 425 520 470 1,570 470 206 206 10,550 425 520 2 x 83.0 1 x TPL85-B15 430 520 470 1,650 470 211 211 10,630 430 520 2 x 83.0 2 x TPL77-B12 430 520 470 1,660 470 211 211 10,640 430 520 2 x 83.0 1 x MET83MA 425 520 470 1,610 470 206 206 10,590 425 520 2 x 83.0 2 x MET60MA 425 520 470 1,610 470 206 206 10,590 425 520 2 x 83.0 Page 15