WÄRTSILÄ 34DF Series Manuale utente
W RTSIL 34DF
PRODUCT GUIDE
Introduction
This Product Guide provides data and system proposals for the early design phase of marine engine install-
ations. For contracted projects specific instructions for planning the installation are always delivered. Any
data and information herein is subject to revision without notice. This 3/2012 issue replaces all previous
issues of the Wärtsilä 34DF Product Guides.
UpdatesPublishedIssue
Chapter Technical Data updated13.06.20123/2012
Chapters Operating Ranges and Technical Data updated08.06.20122/2012
Chapter Operating Ranges updated and other minor updates01.02.20121/2012
Minor updates throughout the product guide18.11.20113/2011
Chapters Operating Ranges and Fuel System updated15.09.20112/2011
Mechanical propulsion added and several other updates13.09.20111/2011
First issue of Wärtsilä 34DF Product Guide05.06.20091/2009
June 2012
Wärtsilä, Ship Power Technology
THIS PUBLICATION IS DESIGNED TO PROVIDE AS ACCURATE AND AUTHORITATIVE INFORMATION REGARDING THE SUBJECTS COVERED AS
WAS AVAILABLE AT THE TIME OF WRITING. HOWEVER, THE PUBLICATION DEALS WITH COMPLICATED TECHNICAL MATTERS AND THE DESIGN
OF THE SUBJECT AND PRODUCTS IS SUBJECT TO REGULAR IMPROVEMENTS, MODIFICATIONS AND CHANGES. CONSEQUENTLY, THE PUB-
LISHER AND COPYRIGHT OWNER OF THIS PUBLICATION CANNOT TAKE ANY RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR OMISSIONS
IN THIS PUBLICATION 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 NOT BE LIABLE UNDER ANY CIR-
CUMSTANCES, FOR ANY CONSEQUENTIAL, SPECIAL, CONTINGENT, OR INCIDENTAL DAMAGES OR INJURY, FINANCIAL OR OTHERWISE,
SUFFERED BY ANY PART ARISING OUT OF, CONNECTED WITH, OR RESULTING FROM THE USE OF THIS PUBLICATION OR THE INFORMATION
CONTAINED THEREIN.
COPYRIGHT © 2012 BY WÄRTSILÄ FINLAND Oy
ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY BE REPRODUCED OR COPIED IN ANY FORM OR BY ANY MEANS, WITHOUT PRIOR
WRITTEN PERMISSION OF THE COPYRIGHT OWNER.
Product Guide Wärtsilä 34DF - 3/2012 iii
Product Guide
Introduction
Table of Contents
11. Main Data and Outputs ............................................................................................................................. 11.1 Technical main data.......................................................................................................................... 11.2 Maximum continuous output............................................................................................................ 21.3 Derating of output in gas mode........................................................................................................ 41.4 Reference conditions........................................................................................................................ 41.5 Operation in inclined position .......................................................................................................... 51.6 Principal dimensions and weights....................................................................................................
82. Operating Ranges ..................................................................................................................................... 82.1 Engine operating range.................................................................................................................... 92.2 Loading capacity.............................................................................................................................. 122.3 Operation at low load and idling....................................................................................................... 122.4 Low air temperature ........................................................................................................................
133. Technical Data ........................................................................................................................................... 133.1 Wärtsilä 6L34DF............................................................................................................................... 153.2 Wärtsilä 9L34DF ............................................................................................................................... 173.3 Wärtsilä 12V34DF ............................................................................................................................ 193.4 Wärtsilä 16V34DF............................................................................................................................
214. Description of the Engine ......................................................................................................................... 214.1 Definitions......................................................................................................................................... 214.2 Main components and systems........................................................................................................ 264.3 Cross section of the engine .............................................................................................................. 284.4 Overhaul intervals and expected life times.......................................................................................
295. Piping Design, Treatment and Installation .............................................................................................. 295.1 Pipe dimensions ............................................................................................................................... 305.2 Trace heating.................................................................................................................................... 305.3 Pressure class.................................................................................................................................. 315.4 Pipe class......................................................................................................................................... 315.5 Insulation .......................................................................................................................................... 325.6 Local gauges .................................................................................................................................... 325.7 Cleaning procedures........................................................................................................................ 335.8 Flexible pipe connections................................................................................................................. 345.9 Clamping of pipes.............................................................................................................................
366. Fuel System ............................................................................................................................................... 366.1 Acceptable fuel characteristics......................................................................................................... 426.2 Operating principles......................................................................................................................... 436.3 Fuel gas system ............................................................................................................................... 496.4 Fuel oil system.................................................................................................................................
687. Lubricating Oil System ............................................................................................................................. 687.1 Lubricating oil requirements ............................................................................................................. 697.2 Internal lubricating oil system ........................................................................................................... 727.3 External lubricating oil system .......................................................................................................... 777.4 Crankcase ventilation system........................................................................................................... 787.5 Flushing instructions ........................................................................................................................
798. Compressed Air System ........................................................................................................................... 798.1 Instrument air quality ........................................................................................................................ 798.2 Internal compressed air system....................................................................................................... 828.3 External compressed air system ......................................................................................................
859. Cooling Water System.............................................................................................................................. 859.1 Water quality ................................................................................................................................... 869.2 Internal cooling water system...........................................................................................................
iv Product Guide Wärtsilä 34DF - 3/2012
Product Guide
Table of Contents
899.3 External cooling water system..........................................................................................................
9810. Combustion Air System........................................................................................................................... 9810.1 Engine room ventilation.................................................................................................................... 9910.2 Combustion air system design.........................................................................................................
10111. Exhaust Gas System................................................................................................................................. 10111.1 Internal exhaust gas system............................................................................................................. 10311.2 Exhaust gas outlet............................................................................................................................ 10511.3 External exhaust gas system...........................................................................................................
10912. Turbocharger Cleaning ............................................................................................................................. 10912.1 Turbine cleaning system................................................................................................................... 10912.2 Compressor cleaning system ...........................................................................................................
11013. Exhaust Emissions ................................................................................................................................... 11013.1 Dual fuel engine exhaust components............................................................................................. 11013.2 Marine exhaust emissions legislation............................................................................................... 11313.3 Methods to reduce exhaust emissions.............................................................................................
11414. Automation System .................................................................................................................................. 11414.1 UNIC C3........................................................................................................................................... 11914.2 Functions .......................................................................................................................................... 12314.3 Alarm and monitoring signals ........................................................................................................... 12314.4 Electrical consumers ........................................................................................................................
12615. Foundation ................................................................................................................................................. 12615.1 Steel structure design ...................................................................................................................... 12615.2 Mounting of main engines................................................................................................................ 13815.3 Mounting of generating sets............................................................................................................. 14115.4 Flexible pipe connections.................................................................................................................
14216. Vibration and Noise.................................................................................................................................. 14216.1 External forces and couples............................................................................................................. 14316.2 Torque variations.............................................................................................................................. 14316.3 Mass moments of inertia.................................................................................................................. 14316.4 Air borne noise ................................................................................................................................. 14416.5 Exhaust noise...................................................................................................................................
14617. Power Transmission ................................................................................................................................. 14617.1 Flexible coupling............................................................................................................................... 14717.2 Torque flange.................................................................................................................................... 14717.3 Clutch............................................................................................................................................... 14717.4 Shaft locking device .......................................................................................................................... 14817.5 Power-take-off from the free end...................................................................................................... 14917.6 Input data for torsional vibration calculations................................................................................... 15017.7 Turning gear .....................................................................................................................................
15118. Engine Room Layout................................................................................................................................ 15118.1 Crankshaft distances........................................................................................................................ 15818.2 Space requirements for maintenance.............................................................................................. 15818.3 Transportation and storage of spare parts and tools........................................................................ 15818.4 Required deck area for service work................................................................................................
16119. Transport Dimensions and Weights........................................................................................................ 16119.1 Lifting of main engines..................................................................................................................... 16319.2 Lifting of generating sets.................................................................................................................. 16419.3 Engine components..........................................................................................................................
16620. Product Guide Attachments.....................................................................................................................
16721. ANNEX ........................................................................................................................................................
Product Guide Wärtsilä 34DF - 3/2012 v
Product Guide
Table of Contents
16721.1 Unit conversion tables...................................................................................................................... 16821.2 Collection of drawing symbols used in drawings..............................................................................
vi Product Guide Wärtsilä 34DF - 3/2012
Product Guide
Table 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 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]
32402700313026102700Wärtsilä 6L34DF
48604050470039154050Wärtsilä 9L34DF
64805400626052205400Wärtsilä 12V34DF
86407200835069607200Wärtsilä 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 =
Product Guide Wärtsilä 34DF - 3/2012 1
Product Guide
1. Main Data and Outputs
1.3 Derating of output in gas mode
1.3.1 Derating due to methane number and charge air receiver temperature
Figure 1.1 Derating due to methane number and charge air receiver temperature
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 re-
ceiver 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.
2 Product Guide Wärtsilä 34DF - 3/2012
Product Guide
1. Main Data and Outputs
1.3.2 Derating due to gas feed pressure and lower heating value
Figure 1.2 Derating of output for gas feed pressure and LHV
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.
Product Guide Wärtsilä 34DF - 3/2012 3
Product Guide
1. Main Data and Outputs
1.4 Reference conditions
The output is available within a range of ambient conditions and coolant temperatures specified in the
chapter Technical Data. The required fuel quality for maximum output is specified in the section Fuel char-
acteristics. For ambient conditions or fuel qualities outside the specification, the output may have to be
reduced.
The specific fuel consumption is stated in the chapter Technical Data. The statement applies to engines
operating in ambient conditions according to ISO 3046-1:2002 (E).
100 kPatotal barometric pressure
25°Cair temperature
30%relative humidity
25°Ccharge air coolant temperature
Correction factors for the fuel oil consumption in other ambient conditions are given in standard ISO 3046-
1:2002.
1.5 Operation in inclined position
Max. inclination angles at which the engine will operate satisfactorily.
15°Transverse inclination, permanent (list) ..................
22.5°Transverse inclination, momentary (roll) .................
10°Longitudinal inclination, permanent (trim) ...............
10°Longitudinal inclination, momentary (pitch) ............
4 Product Guide Wärtsilä 34DF - 3/2012
Product Guide
1. Main Data and Outputs
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