Wartsila ?31DF Series Page 24 Product Manual Download

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2.4

Low air temperature

In standard conditions the following minimum inlet air temperatures apply:

Gas mode:

●

Low load + 5ºC

●

High load -10ºC

Diesel mode:

●

St 5ºC

●

Idling - 5ºC

●

High load - 10ºC

For further guidelines, see chapter Combustion air system design.

NOTE

Air Waste Gate (AWG) is needed when suction air temperature is below +5°C.

2-10

DBAE248994

Wärtsilä 31DF Product Guide

2. Operating Ranges

Summary of Contents for ?31DF Series

Page 1: ...PRODUCT GUIDE W rtsil 31DF...

Page 2: ...ULAR IMPROVEMENTS MODIFICATIONS AND CHANGES CONSEQUENTLY THE PUBLISHER AND COPYRIGHT OWNER OF THIS PUBLICATION CAN NOT ACCEPT ANY RESPONSIBILITY OR LIABILITY FOR ANY EVENTUAL ERRORS OR OMISSIONS IN TH...

Page 3: ...ted projects specific instructions for planning the installation are always delivered Any data and information herein is subject to revision without notice This 01 2019 issue replaces all previous iss...

Page 4: ...This page intentionally left blank...

Page 5: ...etween Inspection or Overhaul Expected Life Time 4 7 4 4 Engine storage 5 1 5 Piping Design Treatment and Installation 5 1 5 1 Pipe dimensions 5 2 5 2 Trace heating 5 2 5 3 Pressure class 5 3 5 4 Pipe...

Page 6: ...s for diesel electric propulsion 15 1 15 Foundation 15 1 15 1 Steel structure design 15 1 15 2 Mounting of main engines 15 4 15 3 Mounting of generating sets 15 5 15 4 Flexible pipe connections 16 1 1...

Page 7: ...20 1 20 Product Guide Attachments 21 1 21 ANNEX 21 1 21 1 Unit conversion tables 21 2 21 2 Collection of drawing symbols used in drawings DBAE248994 vii Table of contents W rtsil 31DF Product Guide...

Page 8: ...This page intentionally left blank...

Page 9: ...1 Rating table for W rtsil 31DF Generating sets Main engines Cylinder configuration 750 rpm 720 rpm 750 rpm Generator kVA Engine kW Generator kVA Engine kW kW 5280 4400 5090 4240 4400 W 8V31DF 6600 55...

Page 10: ...e humidity 25 C charge air coolant temperature Correction factors for the fuel oil consumption in other ambient conditions are given in standard ISO 15550 2002 E 1 3 Operation in inclined position onl...

Page 11: ...3560 6196 6087 W8V31 500 500 300 986 877 1650 1650 4200 6836 6727 W10V31 Weight Liquids Weight Engine W5 W5 W4 W3 W2 W1 W1 H4 H3 H2 H1 H1 Engine 3 3 53 5 54 2 67 67 1585 1153 1600 3115 3115 650 1496 4...

Page 12: ...0 W14V31 908 908 300 1250 1000 2000 2000 6120 9370 9120 W16V31 Weight Liquids Weight Engine W5 W4 W3 W2 W1 H4 H3 H2 H1 H1 Engine 4 95 72 8 1750 698 1153 1600 3500 650 1496 4633 2926 2926 W12V31 5 5 79...

Page 13: ...of the oil sump normal wet sump H3 Height from the crankshaft centerline to engine feet fixed mounted H4 Total width of engine W1 Width of engine block at the engine feet W2 Width of oil sump W3 Widt...

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Page 15: ...load is determined from measured shaft power and actual engine speed The shaft power meter is W rtsil supply The propeller efficiency is highest at design pitch It is common practice to dimension the...

Page 16: ...s 2 2 Loading capacity Controlled load increase is essential for highly supercharged diesel engines because the turbocharger needs time to accelerate before it can deliver the required amount of air A...

Page 17: ...rgency diesel opera tion only s Fast loading s Nominal loading s Engine load of MCR 0 0 0 0 30 120 300 100 Fig 2 2 Normal Loading rate variable speed engines 750 rpm NOTE If normal loading rate is cho...

Page 18: ...ated engine should be used In tug applications the engines have usually reached normal operating temperature before the tug starts assisting The emergency curve is close to the maximum capability of t...

Page 19: ...te Emergency diesel opera tion only s Fast loading MN80 s Fast loading MN70 s Nominal loading s Engine load of MCR 0 0 0 0 0 20 70 90 300 100 Fig 2 4 Normal Loading rate constant speed engines 720 750...

Page 20: ...propulsion control The emergency curve is close to the maximum capability of the engine and it shall not be used as the normal limit In dynamic positioning applications loading ramps corresponding to...

Page 21: ...at has reached nominal operating temperatures or for an engine which has been operated at above 30 load within the last 30 minutes Cyclic wave load taking capability can be evaluated from the figures...

Page 22: ...ntion is to continue in diesel mode In case the intention is to transfer to gas mode and continue operating in gas mode then blue line gas mode limit is valid also for diesel mode The loading rates ac...

Page 23: ...e operation and blue line is intended for gas mode operation 2 3 2 Absolute idling Absolute idling declutched main engine disconnected generator Maximum 10 minutes if the engine is to be stopped after...

Page 24: ...ply Gas mode Low load 5 C High load 10 C Diesel mode Starting 5 C Idling 5 C High load 10 C For further guidelines see chapter Combustion air system design NOTE Air Waste Gate AWG is needed when sucti...

Page 25: ...el mode and or kJ kWh Gas mode 3 1 1 1 Diesel mode Table 3 1 Constant speed engines DE CPP Aux 750 720rpm MDF HFO Engine load Engine driven pumps 50 75 85 100 2 6 1 6 1 4 1 2 Lube oil 1 0 0 7 0 6 0 5...

Page 26: ...eed engines CPP 750rpm MDF HFO Engine load Engine driven pumps 50 75 85 100 58 1 57 1 57 1 57 1 Lube oil 21 0 21 0 21 0 21 0 LT Water 21 0 21 0 21 0 21 0 HT Water 3 2 DBAE248994 W rtsil 31DF Product G...

Page 27: ...ter turbocharger at 100 load TE 517 260 320 270 350 270 350 270 350 270 350 C Temperature after turbocharger at 85 load TE 517 270 310 260 350 260 350 260 350 260 350 C Temperature after turbocharger...

Page 28: ...re Gas Valve Unit Fuel oil system 1000 100 1000 100 1000 100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 3 6 3 6 3 6 3 6 3 6 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24...

Page 29: ...engine nom 80 80 80 80 80 m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150 70...

Page 30: ...dimensioning heat exchangers In arctic option all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific...

Page 31: ...285 350 285 350 C Temperature after turbocharger at 85 load TE 517 285 310 285 350 285 350 285 350 285 350 C Temperature after turbocharger at 75 load TE 517 285 330 285 370 285 370 285 370 285 370 C...

Page 32: ...100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 3 6 3 6 3 6 3 6 3 6 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24 16 24 cSt HFO viscosity before the engine 140 140 140 1...

Page 33: ...m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150 70 150 70 150 70 150 kPa Pre...

Page 34: ...nsioning heat exchangers In arctic option all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific val...

Page 35: ...re after turbocharger at 100 load TE 517 260 320 270 350 270 350 270 350 270 350 C Temperature after turbocharger at 85 load TE 517 270 310 260 350 260 350 260 350 260 350 C Temperature after turbocha...

Page 36: ...re Gas Valve Unit Fuel oil system 1000 100 1000 100 1000 100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 3 6 3 6 3 6 3 6 3 6 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24...

Page 37: ...ter engine nom 90 90 90 90 90 m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150...

Page 38: ...imensioning heat exchangers In arctic option all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific...

Page 39: ...0 285 350 285 350 C Temperature after turbocharger at 85 load TE 517 285 310 285 380 285 350 285 380 285 350 C Temperature after turbocharger at 75 load TE 517 285 330 285 370 285 370 285 370 285 370...

Page 40: ...100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 3 6 3 6 3 6 3 6 3 6 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24 16 24 cSt HFO viscosity before the engine 140 140 140 1...

Page 41: ...90 m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150 70 150 70 150 70 150 kPa P...

Page 42: ...nsioning heat exchangers In arctic option all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific val...

Page 43: ...rature after turbocharger at 100 load TE 517 260 320 270 350 270 350 270 350 270 350 C Temperature after turbocharger at 85 load TE 517 270 310 260 350 260 350 260 350 260 350 C Temperature after turb...

Page 44: ...re Gas Valve Unit Fuel oil system 1000 100 1000 100 1000 100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 7 2 7 2 7 2 7 2 7 2 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24...

Page 45: ...ne nom 110 110 110 110 110 m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150 70...

Page 46: ...imensioning heat exchangers In arctic option all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific...

Page 47: ...0 285 350 285 350 285 350 C Temperature after turbocharger at 85 load TE 517 285 310 285 350 285 350 285 350 285 350 C Temperature after turbocharger at 75 load TE 517 285 330 285 370 285 370 285 370...

Page 48: ...100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 7 2 7 2 7 2 7 2 7 2 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24 16 24 cSt HFO viscosity before the engine 140 140 140 1...

Page 49: ...m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150 70 150 70 150 70 150 kPa Pre...

Page 50: ...nsioning heat exchangers In arctic option all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific val...

Page 51: ...Temperature after turbocharger at 100 load TE 517 260 320 270 350 270 350 270 350 270 350 C Temperature after turbocharger at 85 load TE 517 270 310 260 350 260 350 260 350 260 350 C Temperature afte...

Page 52: ...re Gas Valve Unit Fuel oil system 1000 100 1000 100 1000 100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 7 2 7 2 7 2 7 2 7 2 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24...

Page 53: ...ngine nom 130 130 130 130 130 m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150...

Page 54: ...imensioning heat exchangers In arctic option all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific...

Page 55: ...285 350 285 350 285 350 285 350 C Temperature after turbocharger at 85 load TE 517 285 310 285 350 285 350 285 350 285 350 C Temperature after turbocharger at 75 load TE 517 285 330 285 370 285 370 28...

Page 56: ...100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 7 2 7 2 7 2 7 2 7 2 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24 16 24 cSt HFO viscosity before the engine 140 140 140 1...

Page 57: ...30 m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150 70 150 70 150 70 150 kPa P...

Page 58: ...nsioning heat exchangers In arctic option all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific val...

Page 59: ...C Temperature after turbocharger at 100 load TE 517 260 320 270 350 270 350 270 350 270 350 C Temperature after turbocharger at 85 load TE 517 270 310 260 350 260 350 260 350 260 350 C Temperature aft...

Page 60: ...re Gas Valve Unit Fuel oil system 1000 100 1000 100 1000 100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 7 2 7 2 7 2 7 2 7 2 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24...

Page 61: ...ne nom 150 150 150 150 150 m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150 70...

Page 62: ...imensioning heat exchangers In arctic option all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific...

Page 63: ...285 350 285 350 285 350 285 350 C Temperature after turbocharger at 85 load TE 517 285 310 285 350 285 350 285 350 285 350 C Temperature after turbocharger at 75 load TE 517 285 330 285 370 285 370 2...

Page 64: ...100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 7 2 7 2 7 2 7 2 7 2 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24 16 24 cSt HFO viscosity before the engine 140 140 140 1...

Page 65: ...m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150 70 150 70 150 70 150 kPa Pre...

Page 66: ...all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific value 42700 kJ kg With engine driven pumps tw...

Page 67: ...very rigid crankshaft bearing assembly A hydraulic jack supported in the oil sump offers the possibility to lower and lift the main bearing caps e g when inspecting the bearings Lubricating oil is le...

Page 68: ...cting rod big end bearings BEB monitoring system is as standard 4 2 5 Cylinder liner The cylinder liners are centrifugally cast of a special alloyed cast iron The top collar of the cylinder liner is p...

Page 69: ...ive The camshafts are driven by the crankshaft through a gear train 4 2 11 Turbocharging and charge air cooling The selected 2 stage turbocharging offers ideal combination of high pressure ratios and...

Page 70: ...system include the engine driven lubricating oil pump the electrically driven prelubricating oil pump thermostatic valve filters and lubricating oil cooler The lubricating oil pumps are located in th...

Page 71: ...UNIC includes fuel injection control for engines with electronic fuel injection rate optimized nozzles For more information see chapter Automation system DBAE248994 4 5 4 Description of the Engine W r...

Page 72: ...omponent HFO operation 1 MDF GAS opera tion HFO operation 1 MDF GAS opera tion Min 72000 Min 96000 24000 32000 Piston 24000 32000 24000 32000 Piston rings 96000 128000 24000 32000 Cylinder liner 48000...

Page 73: ...torage At delivery the engine is provided with VCI coating and a tarpaulin For storage longer than 3 months please contact W rtsil Finland Oy DBAE248994 4 7 4 Description of the Engine W rtsil 31DF Pr...

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Page 75: ...ken into consideration Pockets shall be avoided When not possible drain plugs and air vents shall be installed Leak fuel drain pipes shall have continuous slope Vent pipes shall be continuously rising...

Page 76: ...on will take place particularly if air is not dry Even these velocities can be high in terms of their effect on pressure drop In longer supply lines it is often necessary to restrict velocities to 15...

Page 77: ...MPa 4 bar The highest point of the pump curve at or near zero flow is 0 1 MPa 1 bar higher than the nominal point and consequently the discharge pressure may rise to 0 5 MPa 5 bar with closed or thro...

Page 78: ...curs i e before and after heat exchangers etc Pressure gauges should be installed on the suction and discharge side of each pump 5 7 Cleaning procedures Instructions shall be given at an early stage t...

Page 79: ...used should be protected by a suction strainer During this time the welds in the fuel piping should be gently knocked at with a hammer to release slag and the filter inspected and carefully cleaned a...

Page 80: ...id and welded to the steel structure of the foundation to prevent vibrations and external forces to the connection which could damage the flexible connections and transmit noise The support must be cl...

Page 81: ...Fig 5 1 Flexible hoses Drawing V60L0796 below is showing how pipes shall be clamped DBAE248994 5 7 5 Piping Design Treatment and Installation W rtsil 31DF Product Guide...

Page 82: ...as possible to the flexible connection Next support should be 0 3 0 5 m from the first support First three supports closest to the engine or generating set should be fixed supports Where necessary sli...

Page 83: ...Fig 5 3 Flange supports of flexible pipe connections 4V60L0796 Fig 5 4 Pipe clamp for fixed support 4V61H0842 DBAE248994 5 9 5 Piping Design Treatment and Installation W rtsil 31DF Product Guide...

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Page 85: ...ta However if the total content of hydrocarbons C5 and heavier is more than 1 volume W rtsil has to be contacted for further evaluation 3 Hydrogen content higher than 3 volume has to be considered pro...

Page 86: ...temperature before the engine see the Installation Manual Table 6 2 Light fuel oils Test method s and references Category ISO F Lim it Unit Characteristics DFB D M B DFZ D M Z DFA D M A DMX ISO 3104 1...

Page 87: ...table for ship s design and intended voyage g If the sample is dyed and not transparent see ISO 8217 2017 E standard for details related to water analysis limits and test methods h The requirement is...

Page 88: ...perating the engine in back up or diesel mode Use of these fuel qualities as a pilot fuel in gas mode is not allowed but a fuel quality fulfilling the distillate fuel specification included in chapter...

Page 89: ...nal cases above 900 Most bunkers remain in the max 850 to 870 range at the moment CCAI value cannot always be considered as an accurate tool to determine fuels ignition properties especially concernin...

Page 90: ...ematic viscosity at 50 C max ISO 3675 or ISO 12185 991 0 1010 0 a 991 0 1010 0 a kg m3 Density at 15 C max ISO 8217 Annex F 870 850 CCAI max f ISO 8754 or ISO 14596 Statutory require ments but max 4 5...

Page 91: ...n properties especially concerning fuels originating from modern and more complex refinery processes g Sodium contributes to hot corrosion on exhaust valves when combined with high sulphur and vanadiu...

Page 92: ...470 100 mg kg Sodium max IP 501 or IP 470 30 mg kg Sodium bef engine max IP 501 IP 470 or ISO 10478 30 mg kg Aluminium Silicon max IP 501 IP 470 or ISO 10478 15 mg kg Aluminium Silicon bef engine max...

Page 93: ...installations or adversely affects the performance of the engines or is harmful to personnel or contributes overall to additional air pollution NOTE b if not within the given limits the maximum sulph...

Page 94: ...mon rail system Electronic fuel injection rate optimized nozzle system Pilot fuel injection is active in order to avoid clogging of pilot nozzle 6 3 Fuel gas system 6 3 1 External fuel gas system 6 3...

Page 95: ...ystem components Gas detector 01 Gas double wall system ventilation fan 02 W rtsil Gas valve unit 10N05 W rtsil LNGPAC 10N08 Size Pipe connections DN50 DN65 Gas inlet 108 DN25 DN50 16V Gas system vent...

Page 96: ...he ventilation air is taken from both inlets and lead through the annular space of the double wall pipe to the GVU room or to the enclosure of the gas valve unit From the enclosure of the gas valve un...

Page 97: ...double block and bleed function will relief the pressure trapped between the block valves after closing of the block valves The block valves V03 and V05 and inert gas valve V07 are operated as fail to...

Page 98: ...Pressure transmitter gas inlet PT01 Mass flow meter FT01 Pressure transmitter inert gas PT05 Pressure manometer gas inlet PI02 Temperature sensor gas inlet TE01 Pressure transmitter control air PT06 P...

Page 99: ...ig 6 5 Main dimensions of the enclosed GVU DAAF060741A Fig 6 6 Main dimensions of the open GVU DAAW010186A 1266 Height 2000 Width 950 Depth DBAE248994 6 15 6 Fuel Oil System W rtsil 31DF Product Guide...

Page 100: ...e transmitter P01 Shut off valve V08 Manual shut off valve V01 Local pressure indicator P02 Shut off valve V09 Vent valve V02 Pressure transmitter P03 Pressure regulator V10 First block valve V03 Pres...

Page 101: ...posal e g a suitable furnace can also be considered However this kind of arrangement has to be accepted by classification society on a case by case basis NOTE All breathing and ventilation pipes that...

Page 102: ...value that can be used as guidance The required gas pressure to the engine depends on the engine load This is regulated by the GVU 6 4 External fuel oil system The design of the external fuel system...

Page 103: ...ility especially when comparing different suppliers Typically a totally different value than XX micron absolute e g a real example 10 micron nominal e10 60 approx 60 micron absolute XX micron absolute...

Page 104: ...parallel to the nearest viscosity temperature line in the diagram Example 2 Known viscosity 60 cSt at 50 C K The following can be read along the dotted line viscosity at 80 C 20 cSt temperature at fu...

Page 105: ...1T04 Clean leak fuel is drained by gravity from the engine The fuel should be collected in a separate clean leak fuel tank from where it can be pumped to the day tank and reused without separation Th...

Page 106: ...th gravity disc are used then each stand by separator should be operated in series with another separator so that the first separator acts as a purifier and the second as clarifier This arrangement ca...

Page 107: ...ty and recommended throughput of the separator The pump should be protected by a suction strainer mesh size about 0 5 mm An approved system for control of the fuel feed rate to the separator is requir...

Page 108: ...re the separator The heaters to be provided with safety valves and drain pipes to a leakage tank so that the possible leakage can be detected 6 4 4 5 Separator 1S01 1S02 Based on a separation time of...

Page 109: ...uld be located directly beneath the separators or as close as possible below the separators unless it is integrated in the separator unit The sludge pipe must be continuously falling DBAE248994 6 25 6...

Page 110: ...04 OD28 Leak fuel drain clean fuel 1033 Fine filter MDF 1F05 DN32 Leak fuel drain dirty fuel 1041 Suction strainer MDF 1F07 DN32 Leak fuel drain dirty fuel 1042 Flow meter MDF 1I03 DN32 Leak fuel drai...

Page 111: ...lean fuel 1033 Fine filter MDF 1F05 DN32 Leak fuel drain dirty fuel 1041 Suction strainer MDF 1F07 DN32 Leak fuel drain dirty fuel 1042 Flow meter MDF 1I03 DN32 Leak fuel drain dirty fuel 1043 Stand b...

Page 112: ...ak fuel drain clean fuel 1033 Fine filter MDF 1F05 DN32 Leak fuel drain dirty fuel 1041 Suction strainer MDF 1F07 DN32 Leak fuel drain dirty fuel 1042 Flow meter MDF 1I03 DN32 Leak fuel drain dirty fu...

Page 113: ...flat pressure versus flow curve In installations where MDF is fed directly from the MDF tank 1T06 to the circulation pump a suction strainer 1F07 with a fineness of 0 5 mm shall be installed to prote...

Page 114: ...eed circulation pump capacity Design flow 1 6 MPa 16 bar Design pressure 34 m absolute mesh size 50 75 ISO16889 Fineness Maximum permitted pressure drops at 14 cSt 20 kPa 0 2 bar clean filter 80 kPa 0...

Page 115: ...ar Max pressure drop fuel oil 60 kPa 0 6 bar Max pressure drop water min 15 Margin heat rate fouling 50 150 C Design temperature MDF HFO installa tion DBAE248994 6 31 6 Fuel Oil System W rtsil 31DF Pr...

Page 116: ...eration tank booster unit 1T08 Suction filter booster unit 1F06 Changeover valve 1V01 Automatic filter booster unit 1F08 Pressure control valve booster unit 1V03 Flow meter booster unit 1I01 Venting v...

Page 117: ...ter unit 1F06 Changeover valve 1V01 Suction strainer MDF 1F07 Pressure control valve MDF 1V02 Automatic filter booster unit 1F08 Pressure control valve booster unit 1V03 Flow meter booster unit 1I01 O...

Page 118: ...chapter Technical data 6 4 6 3 Feeder booster unit 1N01 A completely assembled feeder booster unit can be supplied This unit comprises the following equipment Two suction strainers Two fuel feed pump...

Page 119: ...manually cleaned filter in the bypass line The automatic filter must be installed before the heater between the feed pump and the de aeration tank and it should be equipped with a heating jacket Overh...

Page 120: ...pressure pumps at operating temperature Heater booster unit 1E02 The heater must be able to maintain a fuel viscosity of 14 cSt at maximum fuel consumption with fuel of the specified grade and a give...

Page 121: ...n filter 20 kPa 0 2 bar Alarm 80 kPa 0 8 bar Maximum permitted pressure drops at 14 cSt 6 4 6 5 Overflow valve HFO 1V05 When several engines are connected to the same feeder booster unit an overflow v...

Page 122: ...fuel pipes at the engine connections 101 and 102 are disconnected and the supply and return lines are connected with a temporary pipe or hose on the installation side All filter inserts are removed ex...

Page 123: ...Fuel S content m m Lubricating oil BN Fuel standard Category 4 5 30 55 GRADE NO 4D GRADE NO 5 6 DMC RMA10 RMK55 DC A30 K700 RMA10 RMK700 ASTM D 975 01 ASTM D 396 04 BS MA 100 1996 CIMAC 2003 ISO 8217...

Page 124: ...relubricating oil pump 2F04 System oil tank 2T01 Suction strainer stand by pump 2F06 Sludge tank 2T06 Separator unit 2N01 Pressure control valve 2V03 Pre lube oil pump 2P02 12V 16V 8V 10V Pipe connect...

Page 125: ...y pump 2P04 Pressure control valve 2V03 Separator 2S01 12V 16V 8V 10V Pipe connections DN200 DN250 Lube oil to el driven pump 207 DN150 DN150 Lube oil from el driven pump 208 DN40 DN40 Lubricating oil...

Page 126: ...2N01 Renovated oil tank 2T05 Separator pump separator unit 2P03 Sludge tank 2T06 Separator 2S01 12V 16V 8V 10V Pipe connections DN40 DN40 Lubricating oil from separator and filling 213 DN40 DN40 Lubr...

Page 127: ...the system oil tank When the engine is running the temperature in the system oil tank located in the ship s bottom is normally 65 75 C To enable separation with a stopped engine the heater capacity mu...

Page 128: ...nk Further on the return pipes must not be located in the same corner of the tank as the suction pipe of the pump The suction pipe of the pump should have a trumpet shaped or conical inlet to minimise...

Page 129: ...ion strainers 2F01 2F04 2F06 It is recommended to install a suction strainer before each pump to protect the pump from damage The suction strainer and the suction pipe must be amply dimensioned to min...

Page 130: ...e pump and the geometric suction height must be specially considered with regards to high viscosity Design data see Technical data Capacity 350 kPa 3 5 bar Max pressure safety valve 100 C Design tempe...

Page 131: ...se from crankcase ventilation outlet extra mass on the oil mist detector must be avoided There should be a fixing point on both sides of the pipe at the support Absolutely rigid mounting between the p...

Page 132: ...Leave the separator running also after the flushing procedure this to ensure that any remaining contaminants are removed If an electric motor driven stand by pump 2P04 is installed then piping shall b...

Page 133: ...nliness a LO sample shall be taken by the shipyard after the flushing is completed The properties to be analyzed are Viscosity BN AN Insolubles Fe and Particle Count Commissioning procedures shall in...

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Page 135: ...e 0 7 MPa 7 bar Nominal pressure 3 C Dew point temperature 1 mg m3 Max oil content 3 m Max particle size 8 2 External compressed air system The design of the starting air system is partly determined b...

Page 136: ...ct determination of the minimum capacity the rules of the classification societies must be followed 8 2 2 Oil and water separator 3S01 An oil and water separator should always be installed in the pipe...

Page 137: ...arting attempt has elapsed A failed start can consume two times the air volume stated in technical data If the ship has a class notation for unattended machinery spaces then the starts are to be demon...

Page 138: ...the water separator between starting air compressor and starting air vessels create and loosen abrasive rust from the piping fittings and receivers Therefore it is recommended to install a filter bef...

Page 139: ...the engines It is important that water of acceptable quality and approved corrosion inhibitors are used directly when the system is filled after completed installation 9 1 1 Corrosion inhibitors The...

Page 140: ...er cooling system Some cooling water additives react with zinc forming harmful sludge Zinc also becomes nobler than iron at elevated temperatures which causes severe corrosion of engine components Fig...

Page 141: ...to HT circuit 406 DN150 DN125 DN100 HT water from stand by pump 408 OD12 OD12 OD12 HT water airvent from air cooler 416 DN150 D125 DN100 LT water inlet 451 DN150 D125 DN100 LT water outlet 452 DN150 D...

Page 142: ...r 4V08 Evaporator unit 4N02 Temperature control valve charge air 4V09 Circulating pump preheater 4P04 Transfer pump 4P09 16V 12V 14V 8V 10V Pipe connections DN150 DN125 DN100 HT water inlet 401 DN150...

Page 143: ...by pump HT 4P03 Circulating pump preheater 4P04 16V 12V 14V 8V 10V Pipe connections DN150 DN125 DN100 HT water inlet 401 DN150 DN125 DN100 HT water outlet 402 OD18 OD18 OD18 HT water air vent 404 DN1...

Page 144: ...er 4V08 Evaporator unit 4N02 Temperature control valve charge air 4V09 Circulating pump preheater 4P04 Transfer pump 4P09 16V 12V 14V 8V 10V Pipe connections DN150 DN125 DN100 HT water inlet 401 DN150...

Page 145: ...urned back to the sea chest in order to prevent ice slush from blocking the sea water filters An example flow diagram of the arctic sea water system is shown below Fig 9 5 Example flow diagram of arct...

Page 146: ...rols the maximum temperature of the water that is mixed with HT water from the engine outlet before the HT pump The control valve can be either self actuated or electrically actuated Especially in ins...

Page 147: ...ansion of the coolant serves for venting of the circuits and provides a sufficient static pressure for the circulating pumps Design data min 10 of the total system volume Volume NOTE The maximum press...

Page 148: ...recommended also for engines that operate exclusively on marine diesel fuel The energy required for preheating of the HT cooling water can be supplied by a separate source or by a running engine ofte...

Page 149: ...s Electric or steam heaters Circulating pump Control cabinet for heaters and pump Set of thermometers Non return valve Safety valve 9 2 14 Throttles Throttles orifices are to be installed in all by pa...

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Page 151: ...n note also that the earlier mentioned demand on 30 air exchanges hour has to be fulfilled is then calculated using the formula where qv air flow m s total heat emission to be evacuated kW air density...

Page 152: ...er with air filter DAAF391752 Fig 10 2 Engine room ventilation air duct connected to the turbocharger DAAF391711 10 2 Combustion air system design Usually the combustion air is taken from the engine r...

Page 153: ...t is max 1 5 kPa The duct should be provided with a step less change over flap to take the air from the engine room or from outside depending on engine load and air temperature For very cold condition...

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Page 155: ...ine Driving end Free end 0 45 90 0 45 90 W 8V31DF W 10V31DF TC location Engine Driving end Free end 0 45 0 45 W 12V31DF W 14V31DF W 16V31DF Fig 11 2 Exhaust pipe connections W12V W16V31 DAAF343596A NO...

Page 156: ...mm Engine 700 DN550 W 8V31DF 800 DN550 W 10V31DF B mm A mm Engine 900 DN450 W 12V31DF 900 DN450 W 14V31DF 1000 DN450 W 16V31DF Fig 11 4 Exhaust pipe diameters and support DAAF351275A DAAF351507A 11 2...

Page 157: ...missible pressure for any of the components in the system Other components in the system might have a lower maximum pressure limit The consequences of a possible gas explosion can be minimized with pr...

Page 158: ...sequence is automatically controlled by the GVU Fig 11 6 Exhaust gas ventilation arrangement DAAF315146 11 2 3 Relief devices rupture discs Explosion relief devices such as rupture discs are to be ins...

Page 159: ...LAS regulations Surface temperatures must be below 220 C on whole engine operating range 11 2 5 Supporting It is very important that the exhaust pipe is properly fixed to a support that is rigid in al...

Page 160: ...harger outlet serves to minimise the external forces on the turbocharger and thus prevent excessive vibrations and possible damage All exhaust gas bellows must be of an approved type 11 2 8 SCR unit 1...

Page 161: ...d power through a number of correction factors The spectrum of the required attenuation in the exhaust system is achieved when the free field sound power A is transferred into sound pressure B at a ce...

Page 162: ...e optimization is made according to the engine characteristics to the sound level requirements and to other equipment installed in the exhaust gas system like SCR exhaust gas boiler or scrubbers The C...

Page 163: ...antee for the noise level after the silencer When included in the scope of supply the standard silencer is of the absorption type equipped with a spark arrester It is also provided with a soot collect...

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Page 165: ...a detachable rubber hose The rubber hose is connected with quick couplings and the length of the hose is normally 10 m One dosing unit can be used for several engines Water supply Fresh water 0 3 MPa...

Page 166: ...The compressor side of the turbocharger is cleaned with the same equipment as the turbine NOTE If the turbocharger suction air is below 5 C washing is not possible 12 2 DBAE248994 W rtsil 31DF Product...

Page 167: ...or any ordinary diesel engine and the engine will be delivered with an EIAPP certificate to show compliance with the MARPOL Annex VI 13 2 Marine exhaust emissions legislation 13 2 1 International Mari...

Page 168: ...ines same methods as mentioned above can be used to reduce exhaust emissions when running in diesel mode In gas mode there is no need for scrubber or SCR Refer to the W rtsil Environmental Product Gui...

Page 169: ...municated over a Modbus TCP connection to external systems 14 1 Technical data and system overview 14 1 1 Ingress protection The ingress protection class of the system is IP54 14 1 2 Ambient temp for...

Page 170: ...SM The above equipment and instrumentation are prewired on the engine 14 1 3 Local operator panel The Local operator panel LOP consist of a display unit LDU with touch screen and pushbuttons as well a...

Page 171: ...mation system on the engine and provides isolation from other power supply systems onboard The cabinet is designed for bulkhead mounting protection degree IP44 max ambient temperature 50 C The power u...

Page 172: ...rface unit B 1 x 2 x 0 75 mm2 1 x 2 x 0 75 mm2 1 x 2 x 0 75 mm2 24 x 0 75 mm2 24 x 0 75 mm2 Engine Propulsion Control System Engine Power Management System Main Switch board C 2 x 0 75 mm2 Power unit...

Page 173: ...wer supply 3 x 2 x 0 75 mm2 Power unit Gas Valve Unit I 3 x 2 x 0 75 mm2 2 x 5 x 0 75 mm2 Gas Valve Unit Exhaust gas fan and pre lube starter I 4 x 2 x 0 75 mm2 3 x 2 5 x 2 5 mm2 Exhaust gas fan and p...

Page 174: ...Fig 14 4 Typical signal overview Main engine 14 6 DBAE248994 W rtsil 31DF Product Guide 14 Automation System...

Page 175: ...s Turning device engaged Pre lubricating pressure low override if black out input is high and within last 30 minutes after the pressure has dropped below the set point of 0 8 bar Stop signal to engine...

Page 176: ...only the diesel fuel system The blackout signal disables some of the start blocks to get the engine running as quickly as possible All checks during start up that are related to gas fuel system or pi...

Page 177: ...ransferring between operating modes the operator should consider the following To prevent an overload of the gas supply system transfer one engine at a time to gas operating mode Before a transfer com...

Page 178: ...d with increase decrease signals The electronic speed control handles load sharing between parallel engines fuel limiters and various other control functions e g ready to open close clutch speed filte...

Page 179: ...V W rtsil 31DF 14 4 1 2 Pre lubricating oil pump The pre lubricating oil pump must always be running when the engine is stopped The engine control system handles start stop of the pump automatically v...

Page 180: ...control system starts the pump automatically via a motor starter if the cooling water pressure drops below a preset level when the engine is running 14 4 1 7 Stand by pump LT cooling water if applica...

Page 181: ...power back into the network The diesel generator can absorb max 5 reverse power 6 The power management system performs loading and unloading of generators in a speed droop system and it usually also...

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Page 183: ...her with the fitted bolts The distance sleeve must be mounted between the seating top plate and the lower nut in order to provide a sufficient guiding length for the fitted bolt in the seating top pla...

Page 184: ...tion of the supporting surface should be 1 100 and it should be machined so that a contact surface of at least 75 is obtained against the chocks Recommended chock dimensions are 250 x 200 mm and the c...

Page 185: ...ly mounted on rubber elements The transmission of forces emitted by the engine is 10 20 when using resilient mounting For resiliently mounted engines a speed range of 500 750 rpm is generally availabl...

Page 186: ...nd number of cylinders propeller shaft speed RPM and number of propeller blades The selected number of mounts and their final position is shown in the generating set drawing Fig 15 2 Recommended desig...

Page 187: ...all connections must be flexible and no grating nor ladders may be fixed to the engine or generating set When installing the flexible pipe connections unnecessary bending or stretching should be avoid...

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Page 189: ...id natural frequencies of decks bulkheads and superstructures close to the excitation frequencies The double bottom should be stiff enough to avoid resonances especially with the rolling frequencies F...

Page 190: ...couples and forces zero or insignificant 16 2 DBAE248994 W rtsil 31DF Product Guide 16 Vibration and Noise...

Page 191: ...1 1 144 150 5 5 108 112 5 34 34 72 75 18 16 36 37 5 720 750 12V31DF 1 1 168 175 1 1 126 131 27 27 84 88 7 7 42 44 720 750 14V31DF 1 1 192 200 1 1 144 150 17 17 96 100 22 22 48 50 720 750 16V31DF coup...

Page 192: ...1pW Diesel Mode Total 8000 4000 2000 1000 500 250 125 Hz 125 114 116 119 121 115 110 100 8V 125 114 118 121 118 115 107 100 10V W31 Engine A weighted Sound Power Level in Octave Frequency Band dB ref...

Page 193: ...ded A clutch is also required when two or more engines are connected to the same driven machinery such as a reduction gear To permit maintenance of a stopped engine clutches must be installed in twin...

Page 194: ...ss of shafts between rotating masses Material of shafts including tensile strength and modulus of rigidity Gear ratios Drawing number of the diagram Propeller and shafting A mass elastic diagram or pr...

Page 195: ...tia of all parts of the coupling Number of flexible elements Linear progressive or degressive torsional stiffness per element Dynamic magnification or relative damping Nominal torque permissible vibra...

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Page 197: ...shaft distances are to be arranged in order to provide sufficient space between engines for maintenance and operation 18 1 1 Main engines Fig 18 1 W8V31 W10V31 turbocharger in free end DAAF324239A DBA...

Page 198: ...Fig 18 2 W8V31 W10V31 turbocharger in driving end DAAF353762A Fig 18 3 W12V31 W14V31 W16V31 turbocharger in free end DAAF392987 18 2 DBAE248994 W rtsil 31DF Product Guide 18 Engine Room Layout...

Page 199: ...Fig 18 4 W12V31 W14V31 W16V31 turbocharger in driving end DAAF393139 All dimensions in mm DBAE248994 18 3 18 Engine Room Layout W rtsil 31DF Product Guide...

Page 200: ...2 Generating sets Fig 18 5 V engines turbocharger in free end DAAF363645 D C B A Engine 2300 3800 2620 2200 W 8V31DF All dimensions in mm 18 4 DBAE248994 W rtsil 31DF Product Guide 18 Engine Room Lay...

Page 201: ...maintenance platforms should be of non slippery material grating or chequer plate NOTE Working Platforms should be designed and positioned to prevent personnel slipping tripping or falling on or betw...

Page 202: ...ervice space requirement 18 4 1 1 Service space requirement main engine Fig 18 6 Service space requirement Main engine W8V31 W10V31 DAAF443904 18 6 DBAE248994 W rtsil 31DF Product Guide 18 Engine Room...

Page 203: ...Fig 18 7 Service space requirement Main engine W12V31 W14V31 W14V31 DAAF438352 DBAE248994 18 7 18 Engine Room Layout W rtsil 31DF Product Guide...

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Page 205: ...ansport Dimensions and Weights 19 1 Lifting of main engines Fig 19 1 Lifting of main engines DAAF336773C All dimensions in mm DBAE248994 19 1 19 Transport Dimensions and Weights W rtsil 31DF Product G...

Page 206: ...19 2 Lifting of generating sets Fig 19 2 Lifting of generating sets DAAF341224 19 2 DBAE248994 W rtsil 31DF Product Guide 19 Transport Dimensions and Weights...

Page 207: ...135 730 W 12V31DF 625 912 1135 730 W 14V31DF 625 912 1135 730 W 16V31DF Fig 19 4 Charge air cooler HP Dimensions mm Weight kg Engine I H G 625 850 1155 830 W 8V31DF 625 850 1155 830 W 10V31DF 558 639...

Page 208: ...with suction branch 1568 W 10V31DF 876 1411 with filter or 1861 with suction branch 1020 W 12V31DF 876 1411 with filter or 1861 with suction branch 1020 W 14V31DF 876 1411 with filter or 1861 with suc...

Page 209: ...shell 10 72 4 Piston 2 94 7 Split gear wheel 11 307 Cylinder liner 3 21 6 Small intermediate gear 12 400 Cylinder head 4 60 6 Large intermediate gear 13 5 2 Inlet valve 5 61 8 Camshaft drive gear 14 3...

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Page 211: ...and PDF format Engine outline drawings are available not only in 2D drawings in PDF DXF format but also in 3D models in near future Please consult your sales contact at W rtsil for more information En...

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Page 213: ...ar kPa Moment of inertia and torque conversion factors Power conversion Multiply by To Convert from Multiply by To Convert from 23 730 lbft2 kgm2 1 360 hp metric kW 737 562 lbf ft kNm 1 341 US hp kW F...

Page 214: ...21 2 Collection of drawing symbols used in drawings Fig 21 1 List of symbols DAAE000806D 21 2 DBAE248994 W rtsil 31DF Product Guide 21 ANNEX...

Page 215: ......

Page 216: ...cycle power solutions for the marine and energy markets By emphasising technological innovation and total efficiency W rtsil maximises the environmental and economic performance of the vessels and pow...

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