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WÄRTSILÄ WARTSILA 50DF, Product Manual

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6.2

Operating principles

Wärtsilä 50DF engines are usually installed for dual fuel operation meaning the engine can be
run either in gas or diesel operating mode. The operating mode can be changed while the
engine is running, within certain limits, without interruption of power generation. If the gas
supply would fail, the engine will automatically transfer to diesel mode operation (MDF).

6.2.1

Gas mode operation

In gas operating mode the main fuel is natural gas which is injected into the engine at a low
pressure. The gas is ignited by injecting a small amount of pilot diesel fuel (MDF). Gas and
pilot fuel injection are solenoid operated and electronically controlled common rail systems.

6.2.2

Diesel mode operation

In diesel operating mode the engine operates only on liquid fuel oil. MDF or HFO is used as
fuel with a conventional diesel fuel injection system. The MDF pilot injection is always active.

6.2.3

Backup mode operation

The engine control and safety system or the blackout detection system can in some situations
transfer the engine to backup mode operation. In this mode the MDF pilot injection system is
not active and operation longer than 30 minutes (with HFO) or 10 hours (with MDF) may cause
clogging of the pilot fuel injection nozzles.

6.2.4

Fuel sharing mode operation (optional)

As an optional feature, the engine can be equipped with fuel sharing mode. When this mode
is activated, the engine will run on a mix of gas, main liquid fuel (MDF or HFO) and pilot fuel.
The required gas/liquid fuel mixing ratio can be chosen by the operator. For more info, see
chapter .

Wärtsilä 50DF Product Guide - a16 - 9 September 2016

6-7

6. Fuel System

Wärtsilä 50DF Product Guide

Summary of Contents for WARTSILA 50DF

Page 1: ...WÄRTSILÄ 50DF PRODUCT GUIDE ...

Page 2: ...AL MATTERS SUITED ONLY FOR SPECIALISTS IN THE AREA AND THE DESIGN OF THE SUBJECT PRODUCTS IS SUBJECT TO REGULAR 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 THIS BOOKLET OR FOR DISCREPANCIES ARISING FROM THE FEATURES OF ANY ACTUAL ITEM IN THE RESPECTIV...

Page 3: ...is 2 2016 issue replaces all previous issues of the Wärtsilä 50DF Project Guides Updates Published Issue Technical data updated 09 09 2016 2 2016 Fuel sharing added Other minor updates 30 06 2016 1 2016 Chapter Technical data and numerous updates throughout the project guide 13 06 2014 1 2014 Minor updates throughout the product guide 03 12 2012 1 2012 Wärtsilä Marine Solutions Vaasa September 201...

Page 4: ... 4 7 4 3 Cross section of the engine 4 9 4 4 Free end cover 4 10 4 5 Overhaul intervals and expected life times 4 10 4 6 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 class 5 4 5 5 Insulation 5 4 5 6 Local gauges 5 4 5 7 Cleaning procedures 5 5 5 8 Flexible pipe connections 5 6 5 9 Clamping of pipes 6...

Page 5: ...ions 13 1 13 1 Dual fuel engine exhaust components 13 1 13 2 Marine exhaust emissions legislation 13 5 13 3 Methods to reduce exhaust emissions 14 1 14 Automation System 14 1 14 1 UNIC C3 14 7 14 2 Functions 14 12 14 3 Alarm and monitoring signals 14 13 14 4 Electrical consumers 15 1 15 Foundation 15 1 15 1 Steel structure design 15 1 15 2 Engine mounting 15 14 15 3 Flexible pipe connections 16 1 ...

Page 6: ...8 4 Required deck area for service work 19 1 19 Transport Dimensions and Weights 19 1 19 1 Lifting of engines 19 5 19 2 Engine components 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 vi Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide Table of contents ...

Page 7: ... table for Wärtsilä 50DF Diesel electric applications Main engines 514 rpm Cylinder configuration 514 rpm 500 rpm BHP kW BHP kW Engine kW 7950 5850 7750 5700 5850 W 6L50DF 10600 7800 10340 7600 7800 W 8L50DF 11930 8775 11630 8550 8775 W 9L50DF 15910 11700 15500 11400 11700 W 12V50DF 21210 15600 20670 15200 15600 W 16V50DF 23860 17550 23260 17100 N A W 18V50DF Nominal speed 514 rpm is recommended f...

Page 8: ...e air cooler Compensating a low methane number gas by lowering the receiver temperature below 45 C is not allowed Compensating a higher charge air temperature than 45 C by a high methane number gas is not allowed The charge air temperature is approximately 5 C higher than the charge air coolant temperature at rated load The engine can be optimized for a lower methane number but that will affect th...

Page 9: ...her for gas feed pressure higher than required in the graph above nor lower heating value above 36 MJ m3 N The above given values for gas feed pressure absolute pressure are at engine inlet The pres sure drop over the gas valve unit GVU is approx 80 kPa Values given in m3 N are at 0 C and 101 3 kPa Wärtsilä 50DF Product Guide a16 9 September 2016 1 3 1 Main Data and Outputs Wärtsilä 50DF Product G...

Page 10: ... to engines operating in ambient conditions according to ISO 3046 1 2002 E 100 kPa total barometric pressure 25 C air temperature 30 relative humidity 25 C charge air coolant temperature Correction factors for the fuel oil consumption in other ambient conditions are given in standard ISO 3046 1 2002 1 4 Operation in inclined position Max inclination angles at which the engine will operate satisfac...

Page 11: ...L50DF Weight WE6 WE5 WE3 WE2 WE1 HE6 HE5 HE4 HE3 TC Engine 96 395 1895 1445 1940 3270 925 2655 650 1455 NA357 W 6L50DF 96 420 1895 1445 1940 3270 790 2685 650 1455 TPL71 128 340 2100 1445 1940 3505 1100 2820 650 1455 TPL76 W 8L50DF 137 5 340 2100 1445 1940 3505 1100 2820 650 1455 TPL76 W 9L50DF TC in driving end All dimensions in mm Weights are dry engines in metric tons of rigidly mounted engines...

Page 12: ...WE3 WE2 WE1Δ WE1 HE6 HE5 TC Engine 175 765 2220 1300 1495 1800 2290 4520 3810 925 3080 NA357 W 12V50DF 175 770 2220 1300 1495 1800 2290 4525 4055 1140 3100 TPL71 224 930 2220 1300 1495 1800 2290 5325 4730 1100 3300 TPL76 W 16V50DF 244 930 2220 1300 1495 1800 2290 5325 4730 1100 3300 TPL76 W 18V50DF TC in driving end With monospex exhaust manifold Δ With air suction branches All dimensions in mm We...

Page 13: ...825 5060 15910 W 9L50DF 239 1365 2593 5253 15475 W 12V50DF 288 1590 2050 4690 17540 W 16V50DF 315 1590 2050 4690 18500 W 18V50DF Values are indicative only and are based on Wärtsilä 50DF engine with built on pumps and turbocharger at free end of the engine Generator make and type will effect width length height and weight All dimensions are in mm Wärtsilä 50DF Product Guide a16 9 September 2016 1 ...

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Page 15: ...ne load is determined from measured shaft power and actual engine speed The shaft power meter is Wärtsilä supply The propulsion control must also include automatic limitation of the load increase rate Maximum loading rates can be found later in this chapter The propeller efficiency is highest at design pitch It is common practice to dimension the propeller so that the specified ship speed is attai...

Page 16: ...ted normal gas see figures can be used as the default loading rate for both diesel and gas mode If the control system has only one load increase ramp then the ramp for a preheated engine must be used The HT water temperature in a preheated engine must be at least 60ºC preferably 70ºC and the lubricating oil temperature must be at least 40ºC The loading ramp max capacity gas indicates the maximum c...

Page 17: ...e maximum engine output is 110 in diesel mode and 100 in gas mode Transfer to diesel mode takes place automatically in case of overload Lower than specified methane number may also result in automatic transfer to diesel when operating close to 100 output Expected variations in gas fuel quality and momentary load level must be taken into account to ensure that gas operation can be maintained in nor...

Page 18: ...t must be taken into account that the load increase rate of a recently connected generator is the sum of the load transfer performed by the power management system and the load increase performed by the propulsion control Maximum instant load steps The electrical system must be designed so that tripping of breakers can be safely handled This requires that the engines are protected from load steps ...

Page 19: ...tor reaches nominal speed in 50 70 seconds after the start signal check of pilot fuel injection is always performed during a normal start With black out start active nominal speed is reached in about 25 s pilot fuel injection disabled The engine can be started with gas mode selected provided that the engine is preheated and the air receiver temperature is at required level It will then start on MD...

Page 20: ... engine must run above 10 load for at least 10 minutes It is however acceptable to change to gas mode directly after the engine has started provided that the charge air temperature is above 55 C Operation above 20 load on HFO or above 10 load on MDF or gas No restrictions 2 4 Low air temperature The minimum inlet air temperature of 5 C applies when the inlet air is taken from the engine room Engin...

Page 21: ...d cooling water pumps The decrease in fuel consumption without engine driven pumps in g kWh is given in the table below Engine load Decrease in fuel consumption 50 75 100 4 3 2 g kWh Lubricating oil pump 2 1 6 1 g kWh HT and LT water pump For calculation of gas consumption adjusted without engine driven pumps use values in the table below calculated using above table and with Methane CH4 as refere...

Page 22: ...exhaust diameter for 35 m s Heat balance at 100 load Note 2 1020 684 1008 936 966 654 kW Jacket water HT circuit 1368 948 1302 678 1212 900 kW Charge air HT circuit 696 462 630 462 612 450 kW Charge air LT circuit 762 480 750 474 726 462 kW Lubricating oil LT circuit 180 162 180 162 168 156 kW Radiation Fuel consumption Note 3 7460 7440 7410 kJ kWh Total energy consumption at 100 load 7580 7780 77...

Page 23: ...s max 80 80 80 kPa Priming pressure nom PT 201 63 63 63 C Temperature before bearings nom TE 201 78 78 78 C Temperature after engine approx 157 153 149 m3 h Pump capacity main engine driven 140 140 140 m3 h Pump capacity main electrically driven 120 120 120 m3 h Oil flow through engine 34 0 34 0 34 0 34 0 34 0 34 0 m3 h Priming pump capacity 50 60Hz 8 8 8 m3 Oil volume in separate system oil tank ...

Page 24: ...At 100 output and nominal speed The figures are valid for ambient conditions according to ISO 15550 except for LT water temperature which is 35ºC in gas operation and 45ºC in back up fuel operation And with engine driven water lube oil and pilot fuel pumps Note 2 According to ISO 15550 lower calorific value 42700 kJ kg with engine driven pumps two cooling water one lubricating oil pumps Tolerance ...

Page 25: ... exhaust diameter for 35 m s Heat balance at 100 load Note 2 1360 912 1344 1248 1288 872 kW Jacket water HT circuit 1824 1264 1736 904 1616 1200 kW Charge air HT circuit 928 616 840 616 816 600 kW Charge air LT circuit 1016 640 1000 632 968 616 kW Lubricating oil LT circuit 240 216 240 216 224 208 kW Radiation Fuel consumption Note 3 7460 7440 7410 kJ kWh Total energy consumption at 100 load 7580 ...

Page 26: ... max 80 80 80 kPa Priming pressure nom PT 201 63 63 63 C Temperature before bearings nom TE 201 78 78 78 C Temperature after engine approx 198 153 149 m3 h Pump capacity main engine driven 145 145 145 m3 h Pump capacity main electrically driven 125 125 125 m3 h Oil flow through engine 45 0 45 0 45 0 45 0 45 0 45 0 m3 h Priming pump capacity 50 60Hz 11 11 11 m3 Oil volume in separate system oil tan...

Page 27: ...At 100 output and nominal speed The figures are valid for ambient conditions according to ISO 15550 except for LT water temperature which is 35ºC in gas operation and 45ºC in back up fuel operation And with engine driven water lube oil and pilot fuel pumps Note 2 According to ISO 15550 lower calorific value 42700 kJ kg with engine driven pumps two cooling water one lubricating oil pumps Tolerance ...

Page 28: ...ed exhaust diameter for 35 m s Heat balance at 100 load Note 2 1530 1026 1512 1404 1449 981 kW Jacket water HT circuit 2052 1422 1953 1017 1818 1350 kW Charge air HT circuit 1044 693 945 693 918 675 kW Charge air LT circuit 1143 720 1125 711 1089 693 kW Lubricating oil LT circuit 270 243 270 243 252 234 kW Radiation Fuel consumption Note 3 7460 7440 7410 kJ kWh Total energy consumption at 100 load...

Page 29: ...x 80 80 80 kPa Priming pressure nom PT 201 63 63 63 C Temperature before bearings nom TE 201 78 78 78 C Temperature after engine approx 198 162 157 m3 h Pump capacity main engine driven 160 160 160 m3 h Pump capacity main electrically driven 130 130 130 m3 h Oil flow through engine 51 0 51 0 51 0 51 0 51 0 51 0 m3 h Priming pump capacity 50 60Hz 12 12 12 m3 Oil volume in separate system oil tank 0...

Page 30: ... 100 output and nominal speed The figures are valid for ambient conditions according to ISO 15550 except for LT water temperature which is 35ºC in gas operation and 45ºC in back up fuel operation And with engine driven water lube oil and pilot fuel pumps Note 2 According to ISO 15550 lower calorific value 42700 kJ kg with engine driven pumps two cooling water one lubricating oil pumps Tolerance 5 ...

Page 31: ...ulated exhaust diameter for 35 m s Heat balance at 100 load Note 2 2040 1368 2016 1872 1932 1308 kW Jacket water HT circuit 2736 1896 2604 1356 2424 1800 kW Charge air HT circuit 1392 924 1260 924 1224 900 kW Charge air LT circuit 1524 960 1500 948 1452 924 kW Lubricating oil LT circuit 360 324 360 324 336 312 kW Radiation Fuel consumption Note 3 7460 7440 7410 kJ kWh Total energy consumption at 1...

Page 32: ...ax 80 80 80 kPa Priming pressure nom PT 201 63 63 63 C Temperature before bearings nom TE 201 78 78 78 C Temperature after engine approx 263 221 215 m3 h Pump capacity main engine driven 210 210 210 m3 h Pump capacity main electrically driven 170 170 170 m3 h Oil flow through engine 65 0 65 0 65 0 65 0 65 0 65 0 m3 h Priming pump capacity 50 60Hz 16 16 16 m3 Oil volume in separate system oil tank ...

Page 33: ...t 100 output and nominal speed The figures are valid for ambient conditions according to ISO 15550 except for LT water temperature which is 35ºC in gas operation and 45ºC in back up fuel operation And with engine driven water lube oil and pilot fuel pumps Note 2 According to ISO 15550 lower calorific value 42700 kJ kg with engine driven pumps two cooling water one lubricating oil pumps Tolerance 5...

Page 34: ...ted exhaust diameter for 35 m s Heat balance at 100 load Note 2 2720 1824 2688 2496 2576 1744 kW Jacket water HT circuit 3648 2528 3472 1808 3232 2400 kW Charge air HT circuit 1856 1232 1680 1232 1632 1200 kW Charge air LT circuit 2032 1280 2000 1264 1936 1232 kW Lubricating oil LT circuit 480 432 480 432 448 416 kW Radiation Fuel consumption Note 3 7460 7440 7410 kJ kWh Total energy consumption a...

Page 35: ... max 80 80 80 kPa Priming pressure nom PT 201 63 63 63 C Temperature before bearings nom TE 201 78 78 78 C Temperature after engine approx 279 272 263 m3 h Pump capacity main engine driven 260 260 260 m3 h Pump capacity main electrically driven 230 230 230 m3 h Oil flow through engine 85 0 85 0 85 0 85 0 85 0 85 0 m3 h Priming pump capacity 50 60Hz 22 22 22 m3 Oil volume in separate system oil tan...

Page 36: ...t 100 output and nominal speed The figures are valid for ambient conditions according to ISO 15550 except for LT water temperature which is 35ºC in gas operation and 45ºC in back up fuel operation And with engine driven water lube oil and pilot fuel pumps Note 2 According to ISO 15550 lower calorific value 42700 kJ kg with engine driven pumps two cooling water one lubricating oil pumps Tolerance 5...

Page 37: ...iameter for 35 m s Heat balance at 100 load Note 2 3024 2808 2898 1962 kW Jacket water HT circuit 3906 2034 3636 2700 kW Charge air HT circuit 1890 1386 1836 1350 kW Charge air LT circuit 2250 1422 2178 1386 kW Lubricating oil LT circuit 540 486 504 468 kW Radiation Fuel consumption Note 3 7440 7410 kJ kWh Total energy consumption at 100 load 7780 7740 kJ kWh Total energy consumption at 75 load 84...

Page 38: ... 80 kPa Priming pressure nom PT 201 63 63 C Temperature before bearings nom TE 201 78 78 C Temperature after engine approx 345 335 m3 h Pump capacity main engine driven 335 335 m3 h Pump capacity main electrically driven 260 260 m3 h Oil flow through engine 100 0 100 0 100 0 100 0 m3 h Priming pump capacity 50 60Hz 25 25 m3 Oil volume in separate system oil tank 0 5 0 5 g kWh Oil consumption at 10...

Page 39: ...or ambient conditions according to ISO 15550 except for LT water temperature which is 35ºC in gas operation and 45ºC in back up fuel operation And with engine driven water lube oil and pilot fuel pumps Note 2 According to ISO 15550 lower calorific value 42700 kJ kg with engine driven pumps two cooling water one lubricating oil pumps Tolerance 5 Gas Lower heating value 28 MJ m3N and Methane Number ...

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Page 41: ...ing 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 led to the bearings and piston through this jack A combined flywheel thrust bearing is located at the driving end of the engine The oil sump a light welded design is mounted on the engine block from below and sealed by O rings The oil sum...

Page 42: ...he big end bearings are of tri metal design with steel back lead bronze lining and a soft and thick running layer 4 2 5 Cylinder liner The cylinder liner is centrifugally cast of a special grey cast iron alloy developed for good wear resistance and high strength It is designed with a high and rigid collar making it resistant against deformations A distortion free liner bore in combination with exc...

Page 43: ... a gear train The driving gear is fixed to the crankshaft by means of flange connection 4 2 11 Fuel system The Wärtsilä 50DF engine is designed for continuous operation on fuel gas natural gas or Marine Diesel Fuel MDF It is also possible to operate the engine on Heavy Fuel Oil HFO Dual fuel operation requires external gas feed system and fuel oil feed system For more details about the fuel system...

Page 44: ...uses traditional spring loaded needle design The hotbox encloses all main fuel injection equipment and system piping providing maximum reliability and safety The high pressure side of the main injection system is thus completely separated from the exhaust gas side and the engine lubricating oil spaces Any leakage in the hot box is collected to prevent fuel from mixing with lubricating oil For the ...

Page 45: ...etail the chapter Cooling water system 4 2 15 Turbocharging and charge air cooling The SPEX Single Pipe EXhaust system turbocharging system combines the advantages of both pulse and constant pressure systems The complete exhaust gas manifold is enclosed by a heat insulation box to ensure low surface temperatures In line engines have one turbocharger and V engines have one turbocharger per cylinder...

Page 46: ... included in the automation system on the engine All necessary engine control functions are handled by the equipment on the engine bus communication to external systems a more comprehensive local display unit and fuel injection control Conventional heavy duty cables are used on the engine and the number of connectors are minimised Power supply bus communication and safety critical functions are do...

Page 47: ...4 3 Cross section of the engine Fig 4 2 Cross section of the in line engine 1V58B2480 Wärtsilä 50DF Product Guide a16 9 September 2016 4 7 4 Description of the Engine Wärtsilä 50DF Product Guide ...

Page 48: ...Fig 4 3 Cross section of the V engine 1V58B2523 4 8 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 4 Description of the Engine ...

Page 49: ...e end cover The torsional vibration damper if fitted is fully covered by the free end cover Fig 4 4 Built on pumps at the free ends of the in line and V engines Wärtsilä 50DF Product Guide a16 9 September 2016 4 9 4 Description of the Engine Wärtsilä 50DF Product Guide ...

Page 50: ... 60000 72000 12000 18000 Cylinder head 24000 36000 12000 18000 Inlet valve 24000 36000 12000 18000 Inlet valve seat 24000 36000 12000 18000 Exhaust valve 24000 36000 12000 18000 Exhaust valve seat 6000 6000 6000 6000 Injection valve nozzle 18000 18000 6000 6000 Injection valve complete 24000 24000 36000 12000 12000 18000 Injection pump element 24000 24000 24000 24000 Pilot fuel pump 36000 36000 18...

Page 51: ...ion 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 Flanged connections shall be used cutting ring joints for precision tubes Flanged connections shall be used in fuel oil lubricating oil compressed air and fresh water piping Welded connections TIG must be used in gas f...

Page 52: ... 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 m s to limit the pressure drop Pipeline sizing on pressure drop As a rule of thumb the pressure drop from the starting air vessel to the inlet of the engine should be max 0 1 MPa 1 bar when the bottle pressure is 3 MPa...

Page 53: ...hest 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 throttled valves Consequently a design pressure of not less than 0 5 MPa 5 bar shall be selected The nearest pipe class to be selected is PN6 Piping test pressure is normally 1 5 x the design pressure 0 75 MPa 7 5 bar Stan...

Page 54: ...d 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 to manufacturers and fitters how different piping systems shall be treated cleaned and protected 5 7 1 Cleanliness during pipe installation All piping must be verified to be clean before lifting it onboard for installat...

Page 55: ... 20 minutes at 40 50 C rinsed with hot water and blown dry with compressed air Great cleanliness shall be approved in all work phases after completed pickling 5 8 Flexible pipe connections Pressurized flexible connections carrying flammable fluids or compressed air have to be type approved Great care must be taken to ensure proper installation of flexible pipe connections between resiliently mount...

Page 56: ...irst support First three supports closest to the engine or generating set should be fixed supports Where necessary sliding supports can be used after these three fixed supports to allow thermal expansion of the pipe Supports should never be welded directly to the pipe Either pipe clamps or flange supports should be used for flexible connection Examples of flange support structures are shown in Fig...

Page 57: ...upports of flexible pipe connections 4V60L0796 Fig 5 3 Pipe clamp for fixed support 4V61H0842 Wärtsilä 50DF Product Guide a16 9 September 2016 5 7 5 Piping Design Treatment and Installation Wärtsilä 50DF Product Guide ...

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Page 59: ...tware The MN is a calculated value that gives a scale for evaluation of the resistance to knock of gaseous fuels Above table is valid for a low MN optimized engine Minimum value is depending on engine configuration which will affect the performance data However if the total content of hydrocarbons C5 and heavier is more than 1 volume Wärtsilä has to be contacted for further evaluation 3 Hydrogen c...

Page 60: ...sity before main fuel injection pumps max 1 5 5 5 C Temperature before pilot fuel pump min 9 50 50 50 C Temperature before pilot fuel pump max 9 2 3 2 cSt Viscosity at 40 C min ISO 3104 11 6 6 cSt Viscosity at 40 C max ISO 3675 or 12185 900 890 890 kg m Density at 15 C max ISO 4264 35 40 40 Cetane index min ISO 8574 or 14596 2 1 5 1 5 mass Sulphur max ISO 2719 60 60 60 C Flash point min IP 570 2 2...

Page 61: ...able 6 3 HFO specifications Test method ref Limit HFO 2 Limit HFO 1 Unit Property 16 24 16 24 cSt Viscosity before injection pumps 1 ISO 3104 700 700 cSt Viscosity at 50 C max ISO 3675 or 12185 991 1010 2 991 1010 2 kg m Density at 15 C max ISO 8217 Annex F 870 850 CCAI max 3 ISO 8754 or 14596 Statutory requirements mass Sulphur max 4 5 ISO 2719 60 60 C Flash point min IP 570 2 2 mg kg Hydrogen su...

Page 62: ...ontents Sodium also strongly contributes to fouling of the exhaust gas turbine blading at high loads The aggressiveness of the fuel depends on its proportions of sodium and vanadium and also on the total amount of ash Hot corrosion and deposit formation are however also influenced by other ash constituents It is therefore difficult to set strict limits based only on the sodium and vanadium content...

Page 63: ...ulphur max ISO 10307 1 0 05 mass Total sediment existent max ISO 3733 0 20 volume Water before engine max ISO 10370 0 50 mass Micro carbon residue max ISO 6245 LP1001 0 05 mass Ash max ISO 10478 100 mg kg Phosphorus max ISO 10478 15 mg kg Silicon max ISO 10478 30 mg kg Alkali content Na K max ISO 2719 60 C Flash point PMCC min ISO 3015 3 C Cloud point max IP 309 3 C Cold filter plugging point max ...

Page 64: ...0 Class 1 Rating Copper strip corrosion 3h at 50 C max EN 14104 0 5 mg KOH g Acid number max EN 14111 16300 120 g iodine 100 g Iodine number max EN 14103 96 5 mass FAME content min 2 EN 14103 12 mass Linolenic acid methyl ester max EN 15779 1 mass Polyunsaturated methyl esters max EN 14110 0 2 mass Methanol content max EN 14105 0 7 mass Monoglyceride content max EN 14105 0 2 mass Diglyceride conte...

Page 65: ...ing mode the engine operates only on liquid fuel oil MDF or HFO is used as fuel with a conventional diesel fuel injection system The MDF pilot injection is always active 6 2 3 Backup mode operation The engine control and safety system or the blackout detection system can in some situations transfer the engine to backup mode operation In this mode the MDF pilot injection system is not active and op...

Page 66: ... filter 01 Venting valve 04 Gas admission valve 02 Standard Pressure class Size Pipe connections ISO 7005 1 PN16 DN100 150 Gas inlet 108 ISO 7005 1 PN40 DN50 Gas system ventilation 708 M42x2 Air inlet to double wall gas system 726 Sensors and indicators Gas pressure PT901 Knock sensor SE614A SE6 4A 6 8 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 6 Fuel System ...

Page 67: ...ssion valve 02 Sensors and indicators Gas pressure PT901 Knock sensor SE614A B SE6 4A B Standard Pressure class Size Pipe connections ISO 7005 1 PN16 DN100 150 Gas inlet 108 ISO 7005 1 PN40 DN50 Gas system ventilation 708A B M42x2 Air inlet to double wall gas system 726A B Wärtsilä 50DF Product Guide a16 9 September 2016 6 9 6 Fuel System Wärtsilä 50DF Product Guide ...

Page 68: ...possible without risk that unburned gas is escaping directly from the inlet to the exhaust The gas piping is double wall type The annular space in double wall piping installations is mechanically ventilated by a fan The air inlets to the annular space are located at the engine and close to tank connection space Air can be taken directly from the engine room or from a location outside the engine ro...

Page 69: ...cabinet DAAF022750D Pipe connections System components Gas inlet 108 Gas detector 01 Gas system ventilation 708 Gas double wall system ventilation fan 02 Air inlet to double wall gas system 726 Gas valve unit 10N05 LNGPAC 10N08 Wärtsilä 50DF Product Guide a16 9 September 2016 6 11 6 Fuel System Wärtsilä 50DF Product Guide ...

Page 70: ...F077105 Pipe connections System components Gas inlet 108 Gas detector 01 Gas system ventilation 708 Gas double wall system ventilation fan 02 Air inlet to double wall gas system 726 Gas valve unit 10N05 LNGPAC 10N08 6 12 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 6 Fuel System ...

Page 71: ...s 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 unit a dedicated ventilation pipe is connected to the ventilation fans and from the fans the pipe continues to the safe area The 1 5 meter hazardous area will be formed at the ventilation air inlet and outlet and is to be ...

Page 72: ...d 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 close i e they will close on current failure Venting valves V02 and V04 are fail to open they will open on current failure There is a connection for inerting the fuel gas pipe with nitrogen see figure Gas valve unit P I ...

Page 73: ...essure transmitter control air P06 Pressure manometer gas inlet P02 Pressure difference transmitter P07 Pressure transmitter P03 Temperature sensor gas inlet T01 Pressure transmitter gas outlet P04 Pipe connections Gas venting D1 Gas inlet 5 10 bar g A1 Air venting D2 Gas to engine B1 Instrument air 6 8 bar g X1 Inert gas max 15 bar g B2 Pipe size DN100 GVU DN80 GVU DN50 GVU Pos DN100 GVU DN80 GVU...

Page 74: ... DN80 DN65 P5 Fig 6 7 Main dimensions of the enclosed GVU for W50DF DAAF060741 Fig 6 8 Main dimensions of the open GVU for W50DF DAAF075752A 6 16 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 6 Fuel System ...

Page 75: ... P03 Pressure transmitter gas outlet P04 Standard Pressure class Size GVU DN100 Size GVU DN80 Pipe connections ISO 7005 1 PN16 DN100 DN150 DN80 DN125 Gas inlet 5 10 bar g A1 ISO 7005 1 PN16 DN100 DN150 DN80 DN125 Gas outlet B1 DIN 2353 PN16 G1 G1 Inert gas max 15 bar g B2 DIN 2353 DN32 OD28 Gas venting D1 PN16 DN100 DN80 Air venting D2 DIN 2353 G1 2 G1 2 Instrument air 6 8 bar g X1 Master fuel gas...

Page 76: ... be lead to the atmosphere Connecting the engine or GVU venting lines to the LNGPac venting mast is not allowed due to risk for backflow of gas into the engine room when LNGPac gas is vented Purging by inert gas Before beginning maintenance work the fuel gas piping system has to be de pressurized and inerted with an inert gas If maintenance work is done after the GVU and the enclosure of the GVU h...

Page 77: ...imitations due to gas feed pressure and lower heating value For pressure requirements see chapters Technical Data and Output limitations due to methane number The pressure losses in the gas feed system to engine has to be added to get the required gas pressure A pressure drop of 120 kPa over the GVU is a typical value that can be used as guidance The required gas pressure to the engine depends on ...

Page 78: ...pressure PT101 Pilot fuel pressure control valve CV124 Fuel oil inlet temperature TE101 Pilot fuel pressure PT125 Pilot fuel oil inlet pressure PT112 Pilot fuel diff pressure over filter PDS129 Pilot fuel oil inlet temperature TE112 Clean fuel oil leakage level LS103 Standard Pressure class Size Pipe connections ISO 7005 1 PN40 DN32 Fuel inlet 101 ISO 7005 1 PN40 DN32 Fuel outlet 102 DIN 2353 OD28...

Page 79: ...emperature TE101 Pilot fuel pressure control valve CV124 Pilot fuel oil inlet pressure PT112 Pilot fuel pressure PT125 Pilot fuel oil inlet temperature TE112 Pilot fuel diff pressure over filter PDS129 Clean fuel oil leakage level A bank LS103A Clean fuel oil leakage level B bank LS103B Standard Pressure class Size Pipe connections ISO 7005 1 PN40 DN32 Fuel inlet 101 ISO 7005 1 PN40 DN32 Fuel outl...

Page 80: ...Poorly centrifuged fuel is harmful to the engine and a high content of water may also damage the fuel feed system Injection pumps generate pressure pulses into the fuel feed and return piping The fuel pipes between the feed unit and the engine must be properly clamped to rigid structures The distance between the fixing points should be at close distance next to the engine See chapter Piping design...

Page 81: ... 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 fuel injection pumps 74 87 C separating temperature 86 C minimum bunker tank temperature 28 C Fuel tanks The fuel oil is first transferred from the bunker tanks to settling tanks for initial separation of sludge...

Page 82: ...tarting with MDF from a gravity tank is foreseen then the tank must be located at least 15 m above the engine crankshaft Leak fuel tank clean fuel 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 The pipes from the engine to the clean leak fuel tank sh...

Page 83: ...ding 991 kg m3 at 15 C In this case the main and stand by separators should be run in parallel When separators with 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 can be used for fuels with a density of max 991 kg m3 at 15 C The separators must be of t...

Page 84: ...ual fuel quality 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 required MDF HFO Design data 0 5 MPa 5 bar 0 5 MPa 5 bar Design pressure 50 C 100 C Design temperature 100 cSt 1000 cSt Viscosity for dimensioning electric motor 6 26 Wärtsilä 50DF Product Gui...

Page 85: ...tor The heaters to be provided with safety valves and drain pipes to a leakage tank so that the possible leakage can be detected Separator 1S01 1S02 Based on a separation time of 23 or 23 5 h day the service throughput Q l h of the separator can be estimated with the formula where max continuous rating of the diesel engine s kW P specific fuel consumption 15 safety margin g kWh b density of the fu...

Page 86: ...tly 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 6 28 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 6 Fuel System ...

Page 87: ...eak fuel tank dirty fuel 1T07 Suction strainer MDF 1F07 Quick closing valve fuel oil tank 1V10 Flexible pipe connections 1H0X Flowmeter MDF 1I03 Size Pipe connections Size Pipe connections 2 OD48 Leak fuel drain dirty fuel 104 DN32 Fuel inlet 101 DN15 Pilot fuel inlet 112 DN32 Fuel outlet 102 DN15 Pilot fuel outlet 117 2 OD28 Leak fuel drain clean fuel 103 Wärtsilä 50DF Product Guide a16 9 Septemb...

Page 88: ...ty fuel 1T07 Suction strainer MDF 1F07 Quick closing valve fuel oil tank 1V10 Flexible pipe connections 1H0X Flowmeter MDF 1I03 Size Pipe connections Size Pipe connections 2 OD48 Leak fuel drain dirty fuel 104 DN32 Fuel inlet 101 DN15 Pilot fuel inlet 112 DN32 Fuel outlet 102 DN15 Pilot fuel outlet 117 2 OD28 Leak fuel drain clean fuel 103 6 30 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärt...

Page 89: ...ter MDF 1F05 Mixing tank min 200 l 1T11 Suction strainer MDF 1F07 Pressure control valve MDF 1V02 Flowmeter MDF 1I03 Pipe connections Leak fuel drain dirty fuel 104 Fuel inlet 101 Pilot fuel inlet 112 Fuel outlet 102 Pilot fuel outlet 117 Leak fuel drain clean fuel 103 Wärtsilä 50DF Product Guide a16 9 September 2016 6 31 6 Fuel System Wärtsilä 50DF Product Guide ...

Page 90: ...fuel 1T07 Suction strainer MDF 1F07 Quick closing valve dirty fuel 1V10 Flexible pipe connections 1H0X Flowmeter MDF 1I03 L50DF V50DF Pipe connections L50DF V50DF Pipe connections 4 OD48 4 OD48 Leak fuel drain dirty fuel 104 DN32 DN32 Fuel inlet 101 DN15 DN15 Pilot fuel inlet 112 DN32 DN32 Fuel outlet 102 DN15 DN15 Pilot fuel outlet 117 4 OD28 4 OD28 Leak fuel drain clean fuel 103 6 32 Wärtsilä 50...

Page 91: ...nk instead of the day tank one consumption meter is sufficient for monitoring of the fuel consumption provided that the meter is installed in the feed line from the day tank before the return fuel tank A fuel oil cooler is usually required with a return fuel tank The total resistance of the flow meter and the suction strainer must be small enough to ensure a positive static pressure of about 30 kP...

Page 92: ...x pressure drop water min 15 Margin heat rate fouling 50 150 C Design temperature MDF HFO installa tion Return fuel tank 1T13 The return fuel tank shall be equipped with a vent valve needed for the vent pipe to the MDF day tank The volume of the return fuel tank should be at least 100 l Black out start Diesel generators serving as the main source of electrical power must be able to resume their op...

Page 93: ...essure control valve booster unit 1V03 Automatic filter booster unit 1F08 Venting valve booster unit 1V07 Pilot fuel fine filter MDF 1F10 Quick closing valve fuel oil tank 1V10 Flow meter booster unit 1I01 Change over valve for leak fuel 1V13 Viscosity meter booster unit 1I02 Feeder booster unit 1N01 L50DF V50DF Pipe connections L50DF V50DF Pipe connections 4 OD48 4 OD48 Leak fuel drain dirty fuel...

Page 94: ...ol valve booster unit 1V03 Pilot fuel fine filter MDF 1F10 Overflow valve HFO MDF 1V05 Suction strainer for pilot fuel MDF 1F11 Venting valve booster unit 1V07 Flexible pipe connections 1H0X Quick closing valve fuel oil tank 1V10 Flow meter booster unit 1I01 Change over valve for leak fuel 1V13 Viscosity meter booster unit 1I02 Feeder booster unit 1N01 L50DF V50DF Pipe connections L50DF V50DF Pipe...

Page 95: ...nit 1V03 Pilot fuel fine filter MDF 1F10 Overflow valve HFO MDF 1V05 Suction strainer for pilot fuel MDF 1F11 Overflow valve HFO MDF 1V05 1 Flexible pipe connections 1H0X Venting valve booster unit 1V07 Flow meter booster unit 1I01 Quick closing valve fuel oil tank 1V10 Viscosity meter booster unit 1I02 Change over valve for leak fuel 1V13 Feeder booster unit 1N01 L50DF V50DF Pipe connections L50D...

Page 96: ...erves Wärtsilä 50DF engines only maximum two engines should be connected to the same fuel feed circuit unless individual circulating pumps before each engine are installed Main engines and auxiliary engines should preferably have separate fuel feed units Individual circulating pumps or other special arrangements are often required to have main engines and auxiliary engines in the same fuel feed ci...

Page 97: ... provided with trace heating Fig 6 21 Feeder booster unit example DAAE006659 Fuel feed pump booster unit 1P04 The feed pump maintains the pressure in the fuel feed system It is recommended to use a screw pump as feed pump The capacity of the feed pump must be sufficient to prevent pressure drop during flushing of the automatic filter A suction strainer with a fineness of 0 5 mm should be installed...

Page 98: ...tank and it should be equipped with a heating jacket Overheating temperature exceeding 100 C is however to be prevented and it must be possible to switch off the heating for operation on MDF Design data According to fuel specification Fuel viscosity 100 C Design temperature If fuel viscosity is higher than 25 cSt 100 C Preheating Equal to feed pump capacity Design flow 1 6 MPa 16 bar Design pressu...

Page 99: ...n pumps 1P12 1 6 MPa 16 bar Design pressure 1 0 MPa 10 bar Max total pressure safety valve 150 C Design temperature 500 cSt Viscosity for dimensioning of electric motor 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 given day tank temperature required viscosity at injection pumps stated in T...

Page 100: ... according to the pressure distribution in the system which also tends to change over time and the control valve on the engine has a very 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 protect the circulation pump The suction strainer can be common for ...

Page 101: ...ation pump A suction strainer with a fineness of 0 5 mm should be installed before each pump There must be a positive static pressure of about 30 kPa on the suction side of the pump Design data 1 m3 h per engine Capacity 1 6 MPa 16 bar Design pressure 1 0 MPa 10 bar Max total pressure safety valve see chapter Technical Data Nominal pressure 50 C Design temperature 90 cSt Viscosity for dimensioning...

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Page 103: ...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 2012 E C In installation where engines are running periodically with different fuel qualities i e natural gas MDF and HFO lubricating oil quality must be chosen based on HFO requirements BN 50 55 lubr...

Page 104: ...tures it may be necessary to use a multigrade oil e g SAE 5W 40 to ensure proper operation during start up with cold oil 7 1 3 Oil in turning device It is recommended to use EP gear oils viscosity 400 500 cSt at 40 C ISO VG 460 An updated list of approved oils is supplied for every installation 7 2 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 7 Lubricating Oil Syste...

Page 105: ...emperature TE201 Main bearing temperature TE700 Lubricating oil before turbocharger pressure PT271 Standard Pressure class Size Pipe connections ISO 7005 1 PN16 DN125 Lubricating oil inlet to manifold 201 ISO 7005 1 PN10 DN200 Lubricating oil outlet from oil sump D E 202AD ISO 7005 1 PN10 DN200 Lubricating oil outlet from oil sump F E 202AF ISO 7005 1 PN10 DN200 Lubricating oil outlet from oil sum...

Page 106: ...ore turbocharger pressure A bank PT271 Main bearing temperature TE700 Lube oil temp after turbocharger A bank TE272 Standard Pressure class Size Pipe connections ISO 7005 1 PN10 DN200 Lubricating oil inlet to manifold 201 ISO 7005 1 PN10 DN250 Lubricating oil outlet from oil sump D E 202AD ISO 7005 1 PN10 DN250 Lubricating oil outlet from oil sump F E 202AF ISO 7005 1 PN10 DN250 Lubricating oil ou...

Page 107: ...ew type and is equipped with a pressure control valve Concerning suction height flow rate and pressure of the engine driven pump see Technical Data All engines are delivered with a running in filter before each main bearing before the turbocharger and before the intermediate gears These filters are to be removed after commissioning Wärtsilä 50DF Product Guide a16 9 September 2016 7 5 7 Lubricating...

Page 108: ... System oil tank 2T01 Suction strainer pre lubricating oil pump 2F04 Temperature control valve 2V01 Safety filter LO 2F05 Notes V50DF L50DF Pipe connections DN200 DN125 Lubricating oil inlet 201 DN250 DN200 Lubricating oil outlet 202 9L50DF DN300 DN300 DN250 Lubricating oil to engine driven pump 203 9L50DF DN200 DN200 DN150 Lubricating oil from engine driven pump 204 2 OD114 OD114 Crankcase air ve...

Page 109: ...oil pump 2F04 System oil tank 2T01 Safety filter LO 2F05 Gravity tank 2T02 Suction strainer stand by pump 2F06 Sludge tank 2T06 Separator unit 2N01 Temperature control valve 2V01 Main lubricating oil pump 2P01 Pressure control valve 2V03 Pre lubricating oil pump 2P02 V50DF L50DF Pipe connections DN125 Lubricating oil inlet 201 DN200 Lubricating oil outlet 1 202 M18 1 5 Control oil to lube oil pres...

Page 110: ...commended throughput of the separator Normally the pump is supplied and matched to the separator by the separator manufacturer The lowest foreseen temperature in the system oil tank after a long stop must be taken into account when dimensioning the electric motor Separator preheater 2E02 The preheater is to be dimensioned according to the feed pump capacity and the temperature in the system oil ta...

Page 111: ...ap type without spring The non return valve is particularly important with engine driven pump and it must be installed in such a position that self closing is ensured Suction and return pipes of the separator must not be located close to each other in the tank The ventilation pipe from the system oil tank may not be combined with crankcase ventilation pipes It must be possible to raise the oil tem...

Page 112: ...is required to have a lubricating oil gravity tank to ensure some lubrication during the time it takes for the engine to stop rotating in a blackout situation The required height of the tank is about 7 meters above the crankshaft A minimum pressure of 50 kPa 0 5 bar must be measured at the inlet to the engine Tank volume m3 Engine type 1 0 6L50DF 2 0 8L 9L 12V50DF 7 10 Wärtsilä 50DF Product Guide ...

Page 113: ...ricating oil pump fills the main oil pump when the main pump is engine driven The pre lubricating pump should always be running when the engine is stopped Depending on the foreseen oil temperature after a long stop the suction ability of the pump and the geometric suction height must be specially considered with regards to high viscosity With cold oil the pressure at the pump will reach the relief...

Page 114: ...re control valve 2V01 The temperature control valve maintains desired oil temperature at the engine inlet by directing part of the oil flow through the bypass line instead of through the cooler When using a temperature control valve with wax elements the set point of the valve must be such that 63 C at the engine inlet is not exceeded This means that the set point should be e g 57 C in which case ...

Page 115: ...lter 2F05 must be installed before the engine Design data 50 cSt SAE 40 VI 95 appox 63 C Oil viscosity see Technical data Oil flow through engine Design flow 100 C Design temperature 1 0 MPa 10 bar Design pressure Fineness 35 µm absolute mesh size automatic filter 35 µm absolute mesh size insert filter Max permitted pressure drops at 50 cSt 30 kPa 0 3 bar clean filter 80 kPa 0 8 bar alarm 7 3 11 S...

Page 116: ...he crankcase ventilation pipes may not be combined with other ventilation pipes e g vent pipes from the system oil tank The diameter of the pipe shall be large enough to avoid excessive back pressure Other possible equipment in the piping must also be designed and dimensioned to avoid excessive flow resistance A condensate trap must be fitted on the vent pipe near the engine The connection between...

Page 117: ...tilation pipe D com ing from the engine For more information about ventilation pipe D size see the external lubricating oil system drawing The max back pressure must also be considered when selecting the ventilation pipe size Wärtsilä 50DF Product Guide a16 9 September 2016 7 15 7 Lubricating Oil System Wärtsilä 50DF Product Guide ...

Page 118: ...ng engine oil through a temporary external oil filter recommended mesh 34 microns into the engine oil sump through a hose and a crankcase door The pumps shall be protected by the suction strainers 2F04 2F06 The automatic filter 2F02 should be by passed to prevent damage It is also recommended to by pass the lubricating oil cooler 2E01 7 5 3 Type of flushing oil Viscosity In order for the flushing ...

Page 119: ...operties to be analyzed are Viscosity BN AN Insolubles Fe and Particle Count Commissioning procedures shall in the meantime be continued without interruption unless the commissioning engineer believes the oil is contaminated Wärtsilä 50DF Product Guide a16 9 September 2016 7 17 7 Lubricating Oil System Wärtsilä 50DF Product Guide ...

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Page 121: ...ines are started by means of compressed air with a nominal pressure of 3 MPa the minimum recommended air pressure is 1 8 MPa The start is performed by direct injection of air into the cylinders through the starting air valves in the cylinder heads All engines have built on non return valves and flame arrestors The engine can not be started when the turning gear is engaged The main starting valve b...

Page 122: ...der at each injection pump 08 Sensors and indicators Starting solenoid CV321 Stop solenoid CV153 1 Slow turning solenoid CV331 Stop solenoid CV153 2 I P converter for wastegate valve CV519 Starting air inlet pressure PT301 Gas venting solenoid CV947 Control air pressure PT311 Oil mist detector NS700 Low pressure control air pressure PT312 Standard Pressure class Size Pipe connections ISO 7005 1 PN...

Page 123: ...nder at each injection pump 08 Sensors and indicators Slow turning solenoid CV331 Stop solenoid CV153 1 I P converter for waste gate valve CV519 Stop solenoid CV153 2 Charge air shut off valve optional CV621 Starting air inlet pressure PT301 Gas venting solenoid CV947 Control air pressure PT311 Oil mist detector NS700 Low pressure control air pressure PT312 Manometer PI Starting solenoid CV321 Sta...

Page 124: ...l compressed air system 3V76H4173D Pipe connections System components Starting air inlet 3 MPa 301 Air filter starting air inlet 3F02 Control air inlet 3 MPa 302 Starting air compressor unit 3N02 Driving air to oil mist detector 0 8 MPa 303 Starting air receiver 3T01 Control air to bypass wastegate valve 0 8 MPa 311 Air supply to turbine and compressor cleaning unit ABB TC 314 8 3 1 Starting air c...

Page 125: ... air vessels are mounted horizontally there must be an inclination of 3 5 towards the drain valve to ensure efficient draining Fig 8 4 Starting air vessel Weight kg Dimensions mm Size Litres D L3 1 L2 1 L1 450 480 133 243 3204 500 810 650 133 255 3560 1000 980 800 133 255 2930 1250 1150 800 133 255 3460 1500 1310 800 133 255 4000 1750 1490 800 133 255 4610 2000 1 Dimensions are approximate The sta...

Page 126: ...et 3F02 Condense formation after 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 before the starting air inlet on the engine to prevent particles to enter the starting air equipment An Y type strainer can be used with a stainless steel screen and mesh ...

Page 127: ... 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 use of an approved cooling water additive is mandatory An updated list of approved products is supplied for every installation and it can also be found in the Instruction manual of the engine together with dosage and f...

Page 128: ...ndard Pressure class Size Pipe connections ISO 7005 1 PN16 DN150 HT water inlet 401 ISO 7005 1 PN16 DN150 HT water outlet 402 DIN 2353 OD12 HT water air vent 404 ISO 7005 1 PN40 DN40 Water from preheater to HT circuit 406 ISO 7005 1 PN16 DN150 HT water from stand by pump 408 DIN 2353 OD48 HT water drain 411 DIN 2353 OD12 HT water air vent from air cooler 416 ISO 7005 1 PN16 DN150 LT water inlet 45...

Page 129: ...let temperature TEZ402 Standard Pressure class Size Pipe connections ISO 7005 1 PN10 DN200 HT water inlet 401 ISO 7005 1 PN10 DN200 HT water outlet 402 DIN 2353 OD12 HT water air vent 404A B ISO 7005 1 PN40 DN40 Water from preheater to HT circuit 406 ISO 7005 1 PN16 DN150 HT water from stand by pump 408 DIN 2353 OD48 HT water drain 411 DIN 2353 OD12 HT water air vent from air cooler 416A B ISO 700...

Page 130: ...while the charge air temperature is maintained on a constant level with the arrangement of the LT circuit The LT water partially bypasses the charge air cooler depending on the operating condition to maintain a constant air temperature after the cooler 9 2 3 Engine driven circulating pumps The LT and HT cooling water pumps are engine driven The engine driven pumps are located at the free end of th...

Page 131: ...T and LT cooling water pump curves 4V19L0333A Fig 9 5 Wärtsilä 50DF 514 rpm in line engine HT and LT cool ing water pump curves 4V19L0332A Wärtsilä 50DF Product Guide a16 9 September 2016 9 5 9 Cooling Water System Wärtsilä 50DF Product Guide ...

Page 132: ...itive dosing tank 4T03 Central cooler 4E08 Drain tank 4T04 Cooler Reduction gear 4E10 Expansion tank 4T05 Preheating unit 4N01 Temperature control valve HT 4V01 Evaporator unit 4N02 Temperature control valve Heat recovery 4V02 Stand by pump HT 4P03 Temperature control valve LT 4V08 Stand by pump LT 4P05 Temperature control valve charge air 4V09 Transfer pump 4P09 Pipe connections are listed in sec...

Page 133: ...ing oil cooler 2E01 Drain tank 4T04 Central cooler 4E08 Expansion tank 4T05 Cooler installation parts 4E12 Temperature control valve HT 4V01 Cooler generator 4E15 Temperature control valve Heat recovery 4V02 Preheating unit 4N01 Temperature control valve LT 4V08 Evaporator unit 4N02 Temperature control valve charge air 4V09 Transfer pump 4P09 Circulating pump 4P15 Pipe connections are listed in se...

Page 134: ...xpansion tank 4T05 Central cooler 4E08 Temperature control valve HT 4V01 Flexible pipe connections 4H0X Temperature control valve Heat recovery 4V02 Preheating unit 4N01 Temperature control valve central cooler 4V08 Evaporator unit 4N02 Temperature control valve charge air 4V09 Circulating pump preheater 4P04 Transfer pump 4P09 Pipe connections are listed in section Internal cooling water system 9...

Page 135: ...4 Heater preheater 4E05 Expansion tank 4T05 Central cooler 4E08 Temperature control valve HT 4V01 Flexible pipe connections 4H0X Temperature control valve Heat recovery 4V02 Preheating unit 4N01 Temperature control valve central cooler 4V08 Evaporator unit 4N02 Temperature control valve charge air 4V09 Circulating pump preheater 4P04 Pipe connections are listed in section Internal cooling water sy...

Page 136: ...nsion tank LT 4T02 Heater preheater 4E05 Additive dosing tank 4T03 Raw water cooler LT 4E06 Drain tank 4T04 Flexible pipe connections 4H0X Temperature control valve HT 4V01 Preheating unit 4N01 Temperature control valve HT 4V01 1 Evaporator unit 4N02 Temperature control valve LT 4V03 Circulating pump preheater 4P04 Temperature control valve charge air 4V09 Transfer pump 4P09 Pipe connections are l...

Page 137: ...tank LT 4T02 Heater preheater 4E05 Additive dosing tank 4T03 Raw water cooler LT 4E06 Drain tank 4T04 Cooler Installation parts 4E12 Temperature control valve HT 4V01 Flexible pipe connections 4H0X Temperature control valve HT 4V01 1 Preheating unit 4N01 Temperature control valve LT 4V03 Evaporator unit 4N02 Temperature control valve charge air 4V09 Circulating pump preheater 4P04 Transfer pump 4P...

Page 138: ... 4E05 Drain tank 4T04 Central cooler 4E08 Expansion tank 4T05 Cooler installation parts 4E12 Temperature control valve HT 4V01 Flexible pipe connections 4H0X Temperature control valve Heat recovery 4V02 Preheating unit 4N01 Temperature control valve central cooler 4V08 Evaporator unit 4N02 Temperature control valve charge air 4V09 Circulating pump preheater 4P04 Pipe connections are listed in sect...

Page 139: ...ansion tank 4T05 Flexible pipe connections 4H0X Temperature control valve HT 4V01 Preheating unit 4N01 Temperature control valve Heat recovery 4V02 Evaporator unit 4N02 Temperature control valve central cooler 4V08 Stand by pump HT 4P03 Temperature control valve charge air 4V09 Circulating pump preheater 4P04 Stand by pump LT 4P05 Pipe connections are listed in section Internal cooling water syste...

Page 140: ...nk 4T04 Central cooler 4E08 Expansion tank 4T05 Flexible pipe connections 4H0X Temperature control valve HT 4V01 Preheating unit 4N01 Temperature control valve Heat recovery 4V02 Evaporator unit 4N02 Temperature control valve central cooler 4V08 Stand by pump HT 4P03 Temperature control valve charge air 4V09 Circulating pump preheater 4P04 Pipe connections are listed in section Internal cooling wa...

Page 141: ...nt energy savings can be achieved in most installations with frequency control of the sea water pumps Minimum flow velocity fouling and maximum sea water temperature salt deposits are however issues to consider 9 3 11 Temperature control valve HT system 4V01 The temperature control valve is installed directly after the engine and is electrically controlled by the engine control system UNIC TE402 I...

Page 142: ...driven LT circulating pump can supply cooling water to one or two small coolers installed in parallel to the engine charge air and lubricating oil cooler for example a MDF cooler or a generator cooler Separate circulating pumps are required for larger flows Design guidelines for the MDF cooler are given in chapter Fuel system 9 3 17 Fresh water central cooler 4E08 Plate type coolers are most commo...

Page 143: ...t conditions It should also be taken into account that the recoverable heat is reduced by circulation to the expansion tank radiation from piping and leakages in temperature control valves 9 3 19 Air venting Air may be entrained in the system after an overhaul or a leak may continuously add air or gas into the system The engine is equipped with vent pipes to evacuate air from the cooling water cir...

Page 144: ...57 9 3 20 Expansion tank 4T05 The expansion tank compensates for thermal expansion of the coolant serves for venting of the circuits and provides a sufficient static pressure for the circulating pumps Design data 70 150 kPa 0 7 1 5 bar Pressure from the expansion tank at pump inlet min 10 of the total system volume Volume NOTE The maximum pressure at the engine must not be exceeded in case an elec...

Page 145: ...ceeding 1 0 1 5 m s in order to ensure the required pressure at the pump inlet with engines running The flow through the pipe depends on the number of vent pipes to the tank and the size of the orifices in the vent pipes The table below can be used for guidance Table 9 1 Minimum diameter of balance pipe Max number of vent pipes with ø 5 mm ori fice Max flow velocity m s Nominal pipe size 6 1 2 DN ...

Page 146: ...ines the required time to heat up the engine from cold condition The minimum required heating power is 12 kW cyl which makes it possible to warm up the engine from 20 ºC to 60 70 ºC in 10 15 hours The required heating power for shorter heating time can be estimated with the formula below About 6 kW cyl is required to keep a hot engine warm Design data min 60 C Preheating temperature 12 kW cyl Requ...

Page 147: ...m heaters Circulating pump Control cabinet for heaters and pump Set of thermometers Non return valve Safety valve Wärtsilä 50DF Product Guide a16 9 September 2016 9 21 9 Cooling Water System Wärtsilä 50DF Product Guide ...

Page 148: ...55 665 81 260 91 900 1000 1445 715 108 260 109 1100 1000 1645 715 135 315 143 1100 1100 1640 765 147 315 142 1100 1100 1640 765 169 375 190 1100 1200 1710 940 203 375 190 1100 1200 1710 940 214 400 230 1100 1250 1715 990 247 400 229 1100 1250 1715 990 270 All dimensions are in mm 9 22 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 9 Cooling Water System ...

Page 149: ...0 1190 200 KVDS 200 205 1260 1190 240 KVDS 240 205 1260 1430 270 KVDS 270 9 3 24 Throttles Throttles orifices are to be installed in all by pass lines to ensure balanced operating conditions for temperature control valves Throttles must also be installed wherever it is necessary to balance the waterflow between alternate flow paths Wärtsilä 50DF Product Guide a16 9 September 2016 9 23 9 Cooling Wa...

Page 150: ...led wherever there is a temperature change i e before and after heat exchangers etc Local pressure gauges should be installed on the suction and discharge side of each pump 9 24 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 9 Cooling Water System ...

Page 151: ...or the ventilation air The amount of air required for ventilation note also that the earlier mentioned demand on 30 air exchanges hour has to be fulfilled is then calculated using the formula where air flow m s qv total heat emission to be evacuated kW Φ air density 1 13 kg m ρ specific heat capacity of the ventilation air 1 01 kJ kgK c temperature rise in the engine room C ΔT The heat emitted by ...

Page 152: ...an speed can be controlled by engine load In multi engine installations each main engine should preferably have its own combustion air fan Thus the air flow can be adapted to the number of engines in operation The combustion air should be delivered through a dedicated duct close to the turbocharger directed towards the turbocharger air intake The outlet of the duct should be equipped with a flap f...

Page 153: ...th a small drain pipe from the charge air cooler for condensed water The amount of condensed water can be estimated with the diagram below Fig 10 1 Condensation in charge air coolers Example according to the diagram At an ambient air temperature of 35 C and a relative humidity of 80 the content of water in the air is 0 029 kg water kg dry air If the air manifold pressure receiver pressure under th...

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Page 155: ...gas temperature before turbine TE511 Charge air shut off valve postition optional GS621 Exhaust gas temperature after turbine TE517 Waste gate valve position GT519 Turbine speed SE518 Pressure difference indic over CAC portable PDI Charge air pressure after CAC PT601 Standard Pressure class Size Pipe connections see section Exhaust gas outlet Exhaust gas outlet 501 ISO 7005 1 PN40 DN32 Cleaning wa...

Page 156: ...Charge air shut off valve postition optional GS621 Exhaust gas temperature after turbine A bank TE517 Charge air shut off valve postition optional GS631 Exhaust gas temperature after turbine B bank TE527 Waste gate valve position GT519 Turbine speed A bank SE518 Pressure difference indic over CAC portable PDI Turbine speed B bank SE528 Standard Pressure class Size Pipe connections see section Exha...

Page 157: ...ust gas outlet Fig 11 3 Exhaust pipe connection 4V58F0057d 58d Fig 11 4 Exhaust pipe diameters and support Wärtsilä 50DF Product Guide a16 9 September 2016 11 3 11 Exhaust Gas System Wärtsilä 50DF Product Guide ...

Page 158: ...600 DN450 TPL71 NA357 W 6L50DF 1000 DN800 TPL76C W 8L50DF 1000 DN800 TPL76 W 9L50DF 1200 1200 DN600 DN450 TPL71 NA357 W 12V50DF 1400 DN800 TPL76 W 16V50DF 1400 DN800 TPL76 W 18V50DF 11 4 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 11 Exhaust Gas System ...

Page 159: ...exhaust system the engine will not be damaged and the explosion gases will be safely directed through predefined routes The following guidelines should be observed when designing the external exhaust system The piping and all other components in the exhaust system should have a constant upward slope to prevent gas from accumulating in the system If horizontal pipe sections cannot be completely avo...

Page 160: ...elief devices rupture discs Explosion relief devices such as rupture discs are to be installed in the exhaust system Outlets are to discharge to a safe place remote from any source of ignition The number and location of explosion relief devices shall be such that the pressure rise caused by a possible explosion cannot cause any damage to the structure of the exhaust system This has to be verified ...

Page 161: ...upporting It is very important that the exhaust pipe is properly fixed to a support that is rigid in all directions directly after the bellows on the turbocharger There should be a fixing point on both sides of the pipe at the support The bellows on the turbocharger may not be used to absorb thermal expansion from the exhaust pipe The first fixing point must direct the thermal expansion away from ...

Page 162: ...nstalled then the exhaust gas boiler shall be installed after the SCR Arrangements must be made to ensure that water cannot spill down into the SCR when the exhaust boiler is cleaned with water More information about the SCR unit can be found in the Wärtsilä Environmental Product Guide In gas mode the SCR unit is not required as IMO Tier 3 is met 11 3 9 Exhaust gas boiler If exhaust gas boilers ar...

Page 163: ... gas silencers Attenuation 35 dB A Weight kg B mm D mm L mm NS 4600 1190 1800 7470 900 5300 1280 1900 8000 1000 7600 1440 2300 9000 1200 8000 1440 2300 9500 1300 Flanges DIN 2501 Wärtsilä 50DF Product Guide a16 9 September 2016 11 9 11 Exhaust Gas System Wärtsilä 50DF Product Guide ...

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Page 165: ...nd an adjustable throttle valve The dosing unit is installed in the engine room and connected to the engine with 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 3 0 bar Min pressure 2 0 MPa 20 0 bar Max pressure 80 C Max temperature 35 70 l min dep...

Page 166: ...e unit at a distance from the engine stainless steel pipes must be used between the valve unit and the engine The valve unit should not be mounted more than 5 m from the engine The water pipes between the valve unit and the turbocharger are constantly purged with charge air from the engine when the engine is operating above 25 load External air supply is needed below 25 load Water supply Fresh wat...

Page 167: ...Fig 12 3 Control unit Fig 12 2 Valve unit Wärtsilä 50DF Product Guide a16 9 September 2016 12 3 12 Turbocharger Cleaning Wärtsilä 50DF Product Guide ...

Page 168: ...Cleaning water to turbine 502 DIN 2353 OD18 Cleaning water to compressor 509 DIN 2353 OD18 Charge air outlet 614 Standard Pressure class Size Pipe connections on valve unit ISO 7005 1 PN40 DN40 Water inlet WI ISO 7005 1 PN40 DN32 Cleaning water to turbine TS ISO 7005 1 PN40 DN25 Cleaning water to compressor CS G3 8 ISO 228 Charge air CA G3 8 ISO 228 Compressed air PA 12 4 Wärtsilä 50DF Product Gui...

Page 169: ...ve unit at a distance from the engine stainless steel pipes must be used between the valve unit and the engine The valve unit should not be mounted more than 5 m from the engine The water pipes between the valve unit and the turbocharger are constantly purged with charge air from the engine when the engine is operating above 25 load External air supply is needed below 25 load 12 3 Turbocharger cle...

Page 170: ... KK4DA X 370 37 4 0 5 0 8 0 TPL76 C 8L50DF KK4DA X 370 37 4 0 5 0 8 0 TPL76 C 9L50DF KK4DA X 480 48 4 0 5 0 8 0 2 TPL71 C 12V50DF KK4DA X 740 74 4 0 5 0 8 0 2 TPL76 C 16V50DF 12 4 Wärtsilä control unit for four engines UNIC C2 C3 380 mm Width 380 mm Height 210 mm Depth 35 kg appr Weight 50ºC Max ambient temp Fig 12 6 Wärtsilä control unit DAAF010946D 12 6 Wärtsilä 50DF Product Guide a16 9 Septembe...

Page 171: ...nal Maritime Organization IMO The increasing concern over the air pollution has resulted in the introduction of exhaust emission controls to the marine industry To avoid the growth of uncoordinated regulations the IMO International Maritime Organization has developed the Annex VI of MARPOL 73 78 which represents the first set of regulations on the marine exhaust emissions MARPOL Annex VI Air Pollu...

Page 172: ...gine Further engines can be certified by checking document component setting etc which have to show correspondence with those of the parent engine Technical file According to the IMO regulations a Technical File shall be made for each engine The Technical File contains information about the components affecting NOx emissions and each critical component is marked with a special IMO number The allow...

Page 173: ...2 NOx emission standard new ships 2011 The IMO Tier 2 NOx emission standard entered into force in 1 1 2011 and applies globally for new marine diesel engines 130 kW installed in ships which keel laying date is 1 1 2011 or later The IMO Tier 2 NOx limit is defined as follows 44 x rpm 0 23 when 130 rpm 2000 NOx g kWh The NOx level is a weighted average of NOx emissions at different loads and the tes...

Page 174: ...visions allowing for special SOx Emission Control Areas SECA to be established with more stringent controls on sulphur emissions In a SECA which currently comprises the Baltic Sea the North Sea the English Channel the US Caribbean Sea and the area outside North America 200 nautical miles the sulphur content of fuel oil used onboard a ship must currently not exceed 0 1 in weight The Marpol Annex VI...

Page 175: ...s can be reduced either with primary or secondary methods The primary methods limit the formation of specific emissions during the combustion process The secondary methods reduce emission components after formation as they pass through the exhaust gas system For dual fuel engines same methods as mentioned above can be used to reduce exhaust emissions when running in diesel mode In gas mode there i...

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Page 177: ...portance The CAN bus and the power supply to each module are both physically doubled on the engine for full redundancy Control signals to from external systems are hardwired to the terminals in the main cabinet on the engine Process data for alarm and monitoring are communicated over a Modbus TCP connection to external systems Fig 14 1 Architecture of UNIC C3 Short explanation of the modules used ...

Page 178: ...it Operational functions available at the LCP Local start Local stop Local emergency speed setting selectors mechanical propulsion Normal emergency mode Decrease Increase speed Local emergency stop Local shutdown reset Local mode selector switch with the following positions Local Engine start and stop can be done only at the local control panel Remote Engine can be started and stopped only remotel...

Page 179: ...d indication of status and detected faults Digital status outputs Shutdown latching and reset Shutdown pre warning Shutdown override configuration depending on application Analogue output for engine speed Adjustable speed switches 14 1 3 Power unit A power unit is delivered with each engine The power unit supplies DC power to the automation system on the engine and provides isolation from other DC...

Page 180: ... Supply 1 230 VAC abt 1500 W Supply 2 230 VAC abt 1500 W 14 1 4 Cabling and system overview Fig 14 3 UNIC C3 overview Table 14 1 Typical amount of cables Cable types typical From To Cable 2 x 2 5 mm2 power supply 2 x 2 5 mm2 power supply 2 x 2 5 mm2 power supply 2 x 2 5 mm2 power supply Engine Power Unit A 2 x 2 5 mm2 power supply Power unit Communication interface unit B 14 4 Wärtsilä 50DF Produc...

Page 181: ... x 0 75 mm2 2 x 2 x 0 75 mm2 3 x 2 x 0 75 mm2 Engine Gas Valve Unit J 4 x 2 x 0 75 mm2 Gas Valve Unit Fuel gas supply system K 1 x 2 x 0 75 mm2 Gas Valve Unit Gas detection system L 2 x 2 5 mm2 power supply 2 x 2 5 mm2 power supply 3 x 2 x 0 75 mm2 Power unit Gas Valve Unit M 3 x 2 x 0 75 mm2 2 x 5 x 0 75 mm2 Gas Valve Unit Exhaust gas fan and pre lube starter N 4 x 2 x 0 75 mm2 3 x 2 5 x 2 5 mm2 ...

Page 182: ...Fig 14 4 Signal overview Main engine 14 6 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 14 Automation System ...

Page 183: ...ring mode optional In addition engine control and safety system or the blackout detection system can force the engine to run in backup operating mode conventional diesel fuel injection only It is possible to transfer a running engine from gas into diesel operating mode Below a certain load limit the engine can be transferred from diesel into gas operating mode The engine will Wärtsilä 50DF Product...

Page 184: ... high level as if operating in normal gas mode In addition a trip to liquid mode is initiated if a cylinder pressure sensor is failing and fuel sharing is active The gas and main liquid fuel mixing ratio can be chosen by the operator according to the fuel sharing map see fig 14 7 The engine will switch to liquid mode if the engine load is lower or higher than the allowed engine load level for fuel...

Page 185: ...performed HFO selected or fuel oil temperature 70 C Gas mode only Charge air shut off valve closed optional device Start block exist due to low HT temp overridden in case of blackout start Start in gas operating mode If the engine is ready to start in gas operating mode the output signals engine ready for gas operation no gas trips are active and engine ready for start no start blockings are activ...

Page 186: ...stopping the engine and re starting it in diesel or gas operating mode After the blackout situation is over i e when the first engine is started in backup operating mode connected to switchboard loaded and consequently blackout signal cleared more engines should be started and the one running in backup mode stopped and re started in gas or diesel operating mode 14 2 3 Gas diesel transfer control T...

Page 187: ...ode Before stopping the engine the control system shall first unload the engine slowly if the engine is loaded and after that open the generator breaker and send a stop signal to the engine Immediately after the engine stop signal is activated in gas operating mode the GVU performs gas shut off and ventilation The pilot injection is active during the first part of the deceleration in order to ensu...

Page 188: ... can be based on traditional speed droop or handled independently by the speed control units without speed droop The later load sharing principle is commonly referred to as isochronous load sharing With isochronous load sharing there is no need for load balancing frequency adjustment or generator loading unloading control in the external control system In a speed droop system each individual speed...

Page 189: ...ne control system handles start stop of the pump automatically via a motor starter It is recommended to arrange a back up power supply from an emergency power source Diesel generators serving as the main source of electrical power must be able to resume their operation in a black out situation by means of stored energy Depending on system design and classification regulations it may be permissible...

Page 190: ...the pump automatically via a motor starter if the cooling water pressure drops below a preset level when the engine is running There is a dedicated sensor on the engine for this purpose Circulating pump for preheater 4P04 The preheater pump shall start when the engine stops to ensure water circulation through the hot engine and stop when the engine starts The engine control system handles start st...

Page 191: ...tance 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 plate The guiding length in the seating top plate should be at least equal to the bolt diameter The design of the various holding down bolts appear from the foundation drawing It is recommended that the bolts are made from a high streng...

Page 192: ...rface pressure on the resin For a given bolt diameter the permissible bolt tension is limited either by the strength of the bolt material max stress 80 of the yield strength or by the maximum permissible surface pressure on the resin Assuming bolt dimensions and chock dimensions according to drawing 1V69L0082a and 1V69L0083b the following hydraulic tightening pressures should be used In line engin...

Page 193: ...on both sides The cutout in the chocks for the clearance bolts should be about 2 mm larger than the bolt diameter Holes are to be drilled and reamed to the correct tolerance for the fitted bolts after the coupling alignment has been checked and the chocks have been lightly knocked into position Depending on the material of the bolts the following hydraulic tightening pressures should be used provi...

Page 194: ...Fig 15 1 Seating and fastening rigidly mounted in line engines on steel chocks 1V69L1651a 15 4 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 15 Foundation ...

Page 195: ...0DF W 8L50DF W 6L50DF Component 4 4 4 Fitted bolt 38 34 26 Clearance bolt 22 20 16 Adjusting screw 4 4 4 Distance sleeve 42 38 30 Round nut Wärtsilä 50DF Product Guide a16 9 September 2016 15 5 15 Foundation Wärtsilä 50DF Product Guide ...

Page 196: ...Fig 15 2 Seating and fastening rigidly mounted V engines on steel chocks 1V69L1659a 15 6 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 15 Foundation ...

Page 197: ...ne W 18V50DF W 16V50DF W 12V50DF Component 4 4 4 Fitted bolt 38 34 26 Clearance bolt 22 20 16 Adjusting screw 4 4 4 Distance sleeve Wärtsilä 50DF Product Guide a16 9 September 2016 15 7 15 Foundation Wärtsilä 50DF Product Guide ...

Page 198: ...Number of pieces per engine W 18V50DF W 16V50DF W 12V50DF Component 42 38 30 Round nut 15 8 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 15 Foundation ...

Page 199: ...Fig 15 3 Seating and fastening rigidly mounted in line engines on resin chocks 1V69L0082c Wärtsilä 50DF Product Guide a16 9 September 2016 15 9 15 Foundation Wärtsilä 50DF Product Guide ...

Page 200: ...DF W 8L50DF W 6L50DF Component 4 4 4 Fitted bolt 38 34 26 Clearance bolt 22 20 16 Adjusting screw 4 4 4 Distance sleeve 42 38 30 Round nut 15 10 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 15 Foundation ...

Page 201: ...Fig 15 4 Seating and fastening rigidly mounted V engines on resin chocks 1V69L0083c Wärtsilä 50DF Product Guide a16 9 September 2016 15 11 15 Foundation Wärtsilä 50DF Product Guide ...

Page 202: ...DF W 16V50DF W 12V50DF Component 4 4 4 Fitted bolt 38 34 26 Clearance bolt 22 20 16 Adjusting screw 4 4 4 Distance sleeve 42 38 30 Round nut 15 12 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 15 Foundation ...

Page 203: ...ment Typical material of the flexible elements is natural rubber which has superior vibration technical properties but unfortunately is prone to damage by mineral oil The rubber mounts are protected against dripping and splashing by means of covers A machining tool for machining of the top plate under the resilient or rubber element can be supplied by Wärtsilä Fig 15 5 Seating and fastening resili...

Page 204: ...igning the engine 15 3 Flexible pipe connections When the engine is resiliently installed all connections must be flexible and no grating nor ladders may be fixed to the engine Especially the connection to the turbocharger must be arranged so that the above mentioned displacements can be absorbed When installing the flexible pipe connections unnecessary bending or stretching should be avoided The ...

Page 205: ...the excitation frequencies The double bottom should be stiff enough to avoid resonances especially with the rolling frequencies Fig 16 1 Coordinate system of the external torques Table 16 1 External forces FZ kN FY kN Frequency Hz FZ kN FY kN Frequency Hz FZ kN FY kN Frequency Hz Speed rpm Engine 8 3 33 3 16 7 8 3 500 W 8L50DF 8 8 34 3 17 1 8 6 514 6 4 33 3 16 7 8 3 500 W 16V50DF 6 7 34 3 17 1 8 6...

Page 206: ... 3 500 W 8L50DF 8 1 102 8 26 1 68 5 141 1 34 3 514 6 6 112 5 21 6 75 0 136 9 37 5 500 W 9L50DF 6 4 115 7 21 0 77 1 133 2 38 6 514 26 5 75 0 65 6 50 0 51 2 25 0 500 W 12V50DF 25 8 77 1 63 9 51 4 43 3 25 7 514 4 5 75 0 14 7 50 0 61 2 25 0 500 W 12V50DF idle 4 4 77 1 14 3 51 4 67 1 25 7 514 6 1 133 3 53 6 66 7 33 3 500 W 16V50DF 5 9 137 1 52 2 68 5 34 3 514 10 9 112 5 39 8 75 0 268 5 37 5 500 W 18V50...

Page 207: ... W 8L50DF 4580 4580 W 9L50DF 5310 5310 W 12V50DF 6790 7250 W 16V50DF 8820 8820 W 18V50DF 16 4 Structure borne noise Fig 16 2 Typical structure borne noise levels Wärtsilä 50DF Product Guide a16 9 September 2016 16 3 16 Vibration and Noise Wärtsilä 50DF Product Guide ...

Page 208: ...hole engine reference level 1 pW The values presented in the graphs below are typical values cylinder specific graphs are included in the Installation Planning Instructions IPI delivered for all contracted projects Fig 16 3 Typical sound power level for W L50DF 16 4 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 16 Vibration and Noise ...

Page 209: ...rger outlet without exhaust gas piping connected Reference value 1 pW The values presented in the graphs below are typical values cylinder specific graphs are included in the Installation Planning Instructions IPI delivered for all contracted projects Wärtsilä 50DF Product Guide a16 9 September 2016 16 5 16 Vibration and Noise Wärtsilä 50DF Product Guide ...

Page 210: ...ical sound power level for exhaust noise W L50DF Fig 16 6 Typical sound power level for exhaust noise W V50DF 16 6 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 16 Vibration and Noise ...

Page 211: ... machinery such as a reduction gear To permit maintenance of a stopped engine clutches must be installed in twin screw vessels which can operate on one shaft line only 17 4 Shaft locking device A shaft locking device should also be fitted to be able to secure the propeller shaft in position so that wind milling is avoided This is necessary because even an open hydraulic clutch can transmit some to...

Page 212: ...en 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 propeller shaft drawing showing Mass moment of inertia of all rotating parts including the rotating part of the OD box SKF couplings and rotating parts of the bearings Mass moment of inertia of the propeller at full zero...

Page 213: ...e coupling Number of flexible elements Linear progressive or degressive torsional stiffness per element Dynamic magnification or relative damping Nominal torque permissible vibratory torque and permissible power loss Drawing of the coupling showing make type and drawing number Operational data Operational profile load distribution over time Clutch in speed Power distribution between the different ...

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Page 215: ...1 1 In line engines Fig 18 1 Crankshaft distances in line engines 3V69C0320b Min A mm Engine type 3500 W 6L50DF 3700 W 8L50DF 3700 W 9L50DF 18 1 2 V engines Fig 18 2 Crankshaft distances V engines 3V69C0319D Recommended mm Minimum mm Engine type B A B A 650 4900 450 4700 W 12V50DF Wärtsilä 50DF Product Guide a16 9 September 2016 18 1 18 Engine Room Layout Wärtsilä 50DF Product Guide ...

Page 216: ...nimum of 1000 mm free space is recommended for maintenance operations everywhere around the engine 18 2 2 Engine room height and lifting equipment The required engine room height is determined by the transportation routes for engine parts If there is sufficient space in transverse and longitudinal direction there is no need to transport engine parts over the rocker arm covers or over the exhaust p...

Page 217: ...adequate working space The surface of 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 between the walkways and the engine Fig 18 3 Maintenance platforms in line engine 3V69C0246a Wärtsilä 50DF Product Guide a16 9 September 2016 18 3 18 Engine Room Layou...

Page 218: ...t is recommended to store heavy engine components on a slightly elevated and adaptable surface e g wooden pallets All engine spare parts should be protected from corrosion and excessive vibration 18 4 Required deck area for service work During engine overhaul a free deck area is required for cleaning and storing dismantled components The size of the service area depends on the overhaul strategy e ...

Page 219: ... 4 1 Service space requirement for the in line engine Fig 18 5 Service space requirement DAAE093286C Wärtsilä 50DF Product Guide a16 9 September 2016 18 5 18 Engine Room Layout Wärtsilä 50DF Product Guide ...

Page 220: ...E 2210 2210 Width needed for dismantling connecting rod big end bearing F 1590 1590 Width of lifting tool for hydraulic cylinder main bearing nuts G 1060 1060 Distance needed to dismantle lube oil pump H 1600 1600 Distance needed to dismantle water pumps J 2100 2050 Space necessary for opening the cover main cabinet K TPL76 1270 NA357 1100 TPL71 1000 Rec axial clearance for dismantling and assembl...

Page 221: ...18 4 2 Service space requirement for the V engine Fig 18 6 Service space requirement DAAE093288A Wärtsilä 50DF Product Guide a16 9 September 2016 18 7 18 Engine Room Layout Wärtsilä 50DF Product Guide ...

Page 222: ...nd cover D7 690 640 Recommended location of rail dismantling CAC D8 1850 1850 Width needed for removing main bearing side screw E 2400 2400 Width needed for dismantling connecting rod big end bearing F 1915 1915 Width of lifting tool for hydraulic cylinder main bearing nuts G 1900 1900 Distance needed to dismantle lube oil pump H 1900 1900 Distance needed to dismantle water pumps J 1480 NA357 1130...

Page 223: ...thout flywheel ton H mm Y mm X mm Engine type Total weight Transport cradle Lifting device Engine 106 6 5 3 5 96 5510 1600 8115 W 6L50DF 138 6 5 3 5 128 5510 1860 9950 W 8L50DF 161 9 5 3 5 148 5675 1860 10800 W 9L50DF Wärtsilä 50DF Product Guide a16 9 September 2016 19 1 19 Transport Dimensions and Weights Wärtsilä 50DF Product Guide ...

Page 224: ...ype Total weight Transport cradle Lifting device Fixing rails Engine 110 6 5 3 5 4 0 96 5650 1600 8115 W 6L50DF 143 6 5 3 5 5 0 128 5650 1860 9950 W 8L50DF 166 9 5 3 5 5 0 148 5815 1860 10800 W 9L50DF 19 2 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 19 Transport Dimensions and Weights ...

Page 225: ...rt cradle Lifting device Engine 179 9 6 3 4 166 4530 10600 10380 W 12V50DF 224 9 6 3 4 211 4530 12460 12580 W 16V50DF 250 9 6 3 4 237 5350 13830 W 18V50DF 2 Turbocharger at the flywheel end 1 Turbocharger at the free end Wärtsilä 50DF Product Guide a16 9 September 2016 19 3 19 Transport Dimensions and Weights Wärtsilä 50DF Product Guide ...

Page 226: ...adle Lifting device Engine 179 1 9 6 3 4 166 1 4532 10601 10211 W 12V50DF 226 9 9 6 3 4 213 9 5350 12801 12300 W 16V50DF 250 0 9 6 3 4 237 0 5975 13667 W 18V50DF 2 Turbocharger at the flywheel end 1 Turbocharger at the free end 19 4 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 19 Transport Dimensions and Weights ...

Page 227: ...0DF 815 3575 DN 800 690 1100 688 641 1340 2301 TPL 76 W 8L50DF W 9L50DF 270 1460 DN 500 510 525 524 545 1024 1874 NA 357 W 12V50DF 464 1957 DN 600 530 791 598 540 1050 2003 TPL 71 W 12V50DF 815 3575 DN 800 690 1100 688 641 1340 2301 TPL 76 W 16V50DF W 18V50DF All dimensions in mm Weight in kg Fig 19 6 Charge air cooler inserts 3V92L1063 Wärtsilä 50DF Product Guide a16 9 September 2016 19 5 19 Tran...

Page 228: ...1 W 8L50DF 1105 615 840 1650 TPL71 W 9L50DF 720 555 790 1220 NA357 W 12V50DF 720 555 790 1220 TPL71 1375 625 870 1330 TPL71 W 16V50DF 1485 625 870 1330 TPL71 W 18V50DF Fig 19 7 Major spare parts 4V92L1476 19 6 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 19 Transport Dimensions and Weights ...

Page 229: ... 110 Gudgeon pin 2 280 Connecting rod upper part 3 460 Connecting rod lower part 1250 Cylinder head 4 950 Cylinder liner 5 Wärtsilä 50DF Product Guide a16 9 September 2016 19 7 19 Transport Dimensions and Weights Wärtsilä 50DF Product Guide ...

Page 230: ...ht kg Description Item 100 Injection pump 6 10 Valve 7 20 Injection valve 8 25 Starting air valve 9 15 Main bearing shell 10 19 8 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 19 Transport Dimensions and Weights ...

Page 231: ...ajor spare parts 4V92L0931a Weight kg Description Item 360 Split gear wheel 13 685 Camshaft gear wheel 14 685 Bigger intermediate wheel 15 550 Smaller intermediate wheel 16 Wärtsilä 50DF Product Guide a16 9 September 2016 19 9 19 Transport Dimensions and Weights Wärtsilä 50DF Product Guide ...

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Page 233: ...ormat Drawings are available in PDF and DXF format and in near future also as 3D models Consult your sales contact at Wärtsilä to get more information about the product guides on the Business Online Portal The attachments are not available in the printed version of the product guide Wärtsilä 50DF Product Guide a16 9 September 2016 20 1 20 Product Guide Attachments Wärtsilä 50DF Product Guide ...

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Page 235: ...ertia 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 Flow conversion factors Fuel consumption conversion factors Multiply by To Convert from Multiply by To Convert from 4 403 US gallon min m3 h liquid 0 736 g hph g kWh 0 586 ft3 min m3 h gas 0 00162 lb hph g kWh Density co...

Page 236: ...21 2 Collection of drawing symbols used in drawings Fig 21 1 List of symbols DAAE000806c 21 2 Wärtsilä 50DF Product Guide a16 9 September 2016 Wärtsilä 50DF Product Guide 21 ANNEX ...

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Page 240: ...lobal leader in complete lifecycle power solutions for the marine and energy markets By emphasising technological innovation and total efficiency Wärtsilä maximises the environmental and economic performance of the vessels and power plants of its customers Wärtsilä is listed on the NASDAQ OMX Helsinki Finland ...

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