WÄRTSILÄ WARTSILA 34DF Manuale utente
W RTSIL 34DF
PRODUCT GUIDE
© Copyright by WÄRTSILÄ FINLAND Oy
All rights reserved. No part of this booklet may be reproduced or copied in any form or by any means (electronic,
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THIS PUBLICATION IS DESIGNED TO PROVIDE AN ACCURATE AND AUTHORITATIVE INFORMATION WITH
REGARD TO THE SUBJECT-MATTER COVERED AS WAS AVAILABLE AT THE TIME OF PRINTING. HOWEVER,THE
PUBLICATION DEALS WITH COMPLICATED TECHNICAL MATTERS SUITED ONLY FOR SPECIALISTS IN THE
AREA, AND THE DESIGN OF THE SUBJECT-PRODUCTS IS SUBJECT TO REGULAR IMPROVEMENTS,
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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 RESPECTIVE PRODUCT BEING DIFFERENT FROM THOSE SHOWN IN THIS PUBLICATION. THE PUBLISHER
AND COPYRIGHT OWNER SHALL UNDER NO CIRCUMSTANCES BE HELD LIABLE FOR ANY FINANCIAL
CONSEQUENTIAL DAMAGES OR OTHER LOSS, OR ANY OTHER DAMAGE OR INJURY, SUFFERED BY ANY
PARTY MAKING USE OF THIS PUBLICATION OR THE INFORMATION CONTAINED HEREIN.
Introduction
This Product Guide provides data and system proposals for the early design phase of marine
engine installations. For contracted projects specific instructions for planning the installation
are always delivered. Any data and information herein is subject to revision without notice.
This 2/2016 issue replaces all previous issues of the Wärtsilä 34DF Product Guides.
UpdatesPublishedIssue
Technical data updated23.09.20162/2016
Technical data updated. Cylinder output 435/450 kW removed.15.09.20161/2016
Process drawings and technical data updated17.12.20153/2015
Process drawings updated. Fuel sharing mode and low load optimization
added.
13.11.20152/2015
Updates throughout the product guide27.02.20151/2015
September 2016
Wärtsilä, Marine Solutions
Wärtsilä 34DF Product Guide - a16 - 23 September 2016 iii
IntroductionWärtsilä 34DF Product Guide
Table of contents
1-11. Main Data and Outputs .......................................................................................................................
1-11.1 Technical main data .....................................................................................................................
1-11.2 Maximum continuous output .......................................................................................................
1-21.3 Output limitations in gas mode ....................................................................................................
1-51.4 Reference conditions ...................................................................................................................
1-51.5 Operation in inclined position .....................................................................................................
1-61.6 Principal dimensions and weights ...............................................................................................
2-12. Operating Ranges ................................................................................................................................
2-12.1 Engine operating range ...............................................................................................................
2-22.2 Loading capacity .........................................................................................................................
2-52.3 Operation at low load and idling ..................................................................................................
2-52.4 Low air temperature ....................................................................................................................
3-13. Technical Data ......................................................................................................................................
3-13.1 Wärtsilä 6L34DF ..........................................................................................................................
3-53.2 Wärtsilä 8L34DF ..........................................................................................................................
3-93.3 Wärtsilä 9L34DF ..........................................................................................................................
3-133.4 Wärtsilä 12V34DF ........................................................................................................................
3-173.5 Wärtsilä 16V34DF ........................................................................................................................
4-14. Description of the Engine ....................................................................................................................
4-14.1 Definitions ....................................................................................................................................
4-14.2 Main components and systems ..................................................................................................
4-74.3 Cross section of the engine .........................................................................................................
4-94.4 Overhaul intervals and expected life times ..................................................................................
4-94.5 Engine storage .............................................................................................................................
5-15. Piping Design, Treatment and Installation .........................................................................................
5-15.1 Pipe dimensions ..........................................................................................................................
5-25.2 Trace heating ...............................................................................................................................
5-25.3 Pressure class ..............................................................................................................................
5-35.4 Pipe class ....................................................................................................................................
5-45.5 Insulation .....................................................................................................................................
5-45.6 Local gauges ...............................................................................................................................
5-45.7 Cleaning procedures ...................................................................................................................
5-55.8 Flexible pipe connections ............................................................................................................
5-65.9 Clamping of pipes ........................................................................................................................
6-16. Fuel System ..........................................................................................................................................
6-16.1 Acceptable fuel characteristics ...................................................................................................
6-76.2 Operating principles ....................................................................................................................
6-86.3 Fuel gas system ...........................................................................................................................
6-186.4 Fuel oil system .............................................................................................................................
7-17. Lubricating Oil System ........................................................................................................................
7-17.1 Lubricating oil requirements ........................................................................................................
7-37.2 Internal lubricating oil system ......................................................................................................
7-127.3 External lubricating oil system .....................................................................................................
7-177.4 Crankcase ventilation system ......................................................................................................
7-197.5 Flushing instructions ....................................................................................................................
iv Wärtsilä 34DF Product Guide - a16 - 23 September 2016
Wärtsilä 34DF Product GuideTable of contents
8-18. Compressed Air System ......................................................................................................................
8-18.1 Instrument air quality ...................................................................................................................
8-18.2 Internal compressed air system ..................................................................................................
8-48.3 External compressed air system .................................................................................................
9-19. Cooling Water System .........................................................................................................................
9-19.1 Water quality ...............................................................................................................................
9-29.2 Internal cooling water system ......................................................................................................
9-59.3 External cooling water system ....................................................................................................
10-110. Combustion Air System .......................................................................................................................
10-110.1 Engine room ventilation ...............................................................................................................
10-210.2 Combustion air system design ....................................................................................................
11-111. Exhaust Gas System ............................................................................................................................
11-111.1 Internal exhaust gas system ........................................................................................................
11-311.2 Exhaust gas outlet .......................................................................................................................
11-511.3 External exhaust gas system .......................................................................................................
12-112. Turbocharger Cleaning ........................................................................................................................
12-112.1 Turbine cleaning system ..............................................................................................................
12-212.2 Compressor cleaning system ......................................................................................................
13-113. Exhaust Emissions ...............................................................................................................................
13-113.1 Dual fuel engine exhaust components ........................................................................................
13-113.2 Marine exhaust emissions legislation ..........................................................................................
13-513.3 Methods to reduce exhaust emissions ........................................................................................
14-114. Automation System .............................................................................................................................
14-114.1 UNIC C3 .......................................................................................................................................
14-714.2 Functions ....................................................................................................................................
14-1314.3 Alarm and monitoring signals ......................................................................................................
14-1314.4 Electrical consumers ...................................................................................................................
15-115. Foundation ............................................................................................................................................
15-115.1 Steel structure design ..................................................................................................................
15-115.2 Mounting of main engines ...........................................................................................................
15-1315.3 Mounting of generating sets ........................................................................................................
15-1715.4 Flexible pipe connections ............................................................................................................
16-116. Vibration and Noise ..............................................................................................................................
16-116.1 External forces and couples ........................................................................................................
16-316.2 Torque variations .........................................................................................................................
16-316.3 Mass moments of inertia .............................................................................................................
16-316.4 Air borne noise .............................................................................................................................
16-416.5 Exhaust noise ..............................................................................................................................
17-117. Power Transmission ............................................................................................................................
17-117.1 Flexible coupling ..........................................................................................................................
17-217.2 Torque flange ...............................................................................................................................
17-217.3 Clutch ..........................................................................................................................................
17-217.4 Shaft locking device ....................................................................................................................
17-317.5 Power-take-off from the free end ................................................................................................
17-417.6 Input data for torsional vibration calculations .............................................................................
17-517.7 Turning gear .................................................................................................................................
18-118. Engine Room Layout ...........................................................................................................................
18-118.1 Crankshaft distances ...................................................................................................................
Wärtsilä 34DF Product Guide - a16 - 23 September 2016 v
Table of contentsWärtsilä 34DF Product Guide
18-818.2 Space requirements for maintenance .........................................................................................
18-818.3 Transportation and storage of spare parts and tools ..................................................................
18-818.4 Required deck area for service work ...........................................................................................
19-119. Transport Dimensions and Weights ...................................................................................................
19-119.1 Lifting of main engines ................................................................................................................
19-319.2 Lifting of generating sets .............................................................................................................
19-419.3 Engine components .....................................................................................................................
20-120. Product Guide Attachments ...............................................................................................................
21-121. ANNEX ...................................................................................................................................................
21-121.1 Unit conversion tables .................................................................................................................
21-221.2 Collection of drawing symbols used in drawings ........................................................................
vi Wärtsilä 34DF Product Guide - a16 - 23 September 2016
Wärtsilä 34DF Product GuideTable of contents
1. Main Data and Outputs
1.1 Technical main data
The Wärtsilä 34DF is a 4-stroke, non-reversible, turbocharged and inter-cooled dual fuel engine
with direct injection of liquid fuel and indirect injection of gas fuel. The engine can be operated
in gas mode or in diesel mode.
340 mmCylinder bore .....................................
400 mmStroke ................................................
36.3 l/cylPiston displacement ..........................
2 inlet valves and 2 exhaust valvesNumber of valves ...............................
6, 8 and 9 in-line; 12 and 16 in V-formCylinder configuration .......................
clockwise, counterclockwise on requestDirection of rotation ...........................
720, 750 rpmSpeed ................................................
9.6, 10.0 m/sMean piston speed ............................
1.2 Maximum continuous output
Table 1-1 Rating table for Wärtsilä 34DF
Generating setsMain engines
750 rpm
Cylinder
configuration 750 rpm720 rpm
Generator [kVA]Engine [kW]Generator [kVA]Engine [kW]Engine [kW]
36003000346028803000Wärtsilä 6L34DF
48004000461038404000Wärtsilä 8L34DF
54004500518043204500Wärtsilä 9L34DF
72006000691057606000Wärtsilä 12V34DF
96008000922076808000Wärtsilä 16V34DF
The mean effective pressure Pecan be calculated using the following formula:
where:
mean effective pressure [bar]Pe=
output per cylinder [kW]P =
engine speed [r/min]n =
cylinder diameter [mm]D =
length of piston stroke [mm]L =
operating cycle (4)c =
Wärtsilä 34DF Product Guide - a16 - 23 September 2016 1-1
1. Main Data and OutputsWärtsilä 34DF Product Guide
1.3 Output limitations in gas mode
1.3.1 Output limitations due to methane number and charge air
receiver temperature
Fig 1-1 Output limitations due to methane number and charge air receiver
temperature
1-2 Wärtsilä 34DF Product Guide - a16 - 23 September 2016
Wärtsilä 34DF Product Guide1. Main Data and Outputs
NOTE
Compensating a low methane number gas by lowering the charge air receiver
temperature below 45 °C is not allowed.
Minimum charge air receiver temperature is 35°C.
Compensating a higher charge air receiver temperature than 55 °C by a high
methane number gas is not allowed.
The dew point shall be calculated for the specific site conditions. The minimum
charge air receiver temperature shall be above the dew point, otherwise
condensation will occur in the charge air cooler.
Each +10 °C higher charge air receiver temperature from 45 °C means a 18 kPa
higher charge air pressure. This will have influence on the KGAS derating and on
the KTC derating calculation.
The charge air receiver temperature is approximately 5-10 °C higher than the
charge air coolant temperature at rated load.
Glycol usage in cooling water according to document DAAE062266.
Wärtsilä 34DF Product Guide - a16 - 23 September 2016 1-3
1. Main Data and OutputsWärtsilä 34DF Product Guide
1.3.2 Output limitations due to gas feed pressure and lower
heating value
Fig 1-2 Output limitations for gas feed pressure and LHV, 480/500kW per cylinder
NOTE
The above given values for gas feed pressure is before the engine (after the gas
regulating unit).
No compensation (uprating) of the engine output is allowed, neither for gas feed
pressure higher than required in the graph above nor lower heating value above
36 MJ/m3N.
Values are given in m3Nis at 0 °C and 101.3 kPa.
If the gas pressure is lower than required, a pressure booster unit can be installed
before the gas regulating unit to ensure adequate gas pressure. If pressure arise
is not possible the engine output has to be adjusted according to above.
A 18 kPa higher gas feed pressure is required per 10 °C higher charge air receiver
temperature, due to increased charge air pressure.
1-4 Wärtsilä 34DF Product Guide - a16 - 23 September 2016
Wärtsilä 34DF Product Guide1. Main Data and Outputs
Indice
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