ME
IMO Tier 2
AE/DE
IMO Tier 2
AE/DE
IMO Tier 2
Wärtsilä 9L34DF
Diesel modeGas modeDieselmodeGas modeDiesel modeGas mode
450450435kWCylinder output
112112108m
3
/hPump capacity (main), engine driven
10010096m
3
/hPump capacity (main), electrically driven
21.6 / 25.921.6 / 25.921.6 / 25.9m
3
/hPriming pump capacity (50/60Hz)
555m
3
Oil volume in separate system oil tank
0.40.40.4g/kWhOil consumption at 100% load, approx.
140140140l/minCrankcase ventilation flow rate at full load
0.30.30.3kPaCrankcase ventilation backpressure, max.
8.5...9.58.5...9.58.5...9.5lOil volume in turning device
1.4...2.21.4...2.21.4...2.2lOil volume in speed governor
HT cooling water system
250 + static250 + static250 + statickPaPressure at engine, after pump, nom. (PT 401)
530530530kPaPressure at engine, after pump, max. (PT 401)
858585°CTemperature before cylinders, approx. (TE 401)
969696°CTemperature after engine, nom.
909090m
3
/hCapacity of engine driven pump, nom.
100100100kPaPressure drop over engine, total
150 (1.5)150 (1.5)150 (1.5)kPaPressure drop in external system, max.
70...15070...15070...150kPaPressure from expansion tank
0.560.560.56m
3
Water volume in engine
250250250kPaDelivery head of stand-by pump
LT cooling water system
250+ static250+ static250+ statickPaPressure at engine, after pump, nom. (PT 471)
530530530kPaPressure at engine, after pump, max. (PT 471)
383838°CTemperature before engine, max. (TE 471)
252525°CTemperature before engine, min. (TE 471)
909090m
3
/hCapacity of engine driven pump, nom.
353535kPaPressure drop over charge air cooler
200 (2.0)200 (2.0)200 (2.0)kPaPressure drop in external system, max.
70...15070...15070...150kPaPressure from expansion tank
250250250kPaDelivery head of stand-by pump
Starting air system
300030003000kPaPressure, nom. (PT 301)
150015001500kPaPressure at engine during start, min. (20 °C)
300030003000kPaPressure, max. (PT 301)
160016001600kPaLow pressure limit in starting air receiver
6.26.26.2Nm
3
Consumption per start at 20 °C (successful start)
8.08.08.0Nm
3
Consumption per start at 20 °C (with slowturn)
Notes:
At Gas LHV 49620kJ/kgNote 1
At ISO 3046-1 conditions (ambient air temperature 25°C, LT-water 25°C) and 100% load. Flow tolerance 5% and temperature tolerance 10°C in gas mode operation.
Flow tolerance 8% and temperature tolerance 15°C in diesel mode operation.
Note 2
At 100% output and nominal speed. The figures are valid for ambient conditions according to ISO 3046/1, except for LT-water temperature, which is corresponding
to charge air receiver temperature 45ºC in gas operation. With engine driven water and lubricating oil pumps. Tolerance for cooling water heat 10%, tolerance for
radiation heat 30%. Fouling factors and a margin to be taken into account when dimensioning heat exchangers.
Note 3
At ambient conditions according to ISO 3046/1, fuel net calorific value 42700 kJ/kg, with engine driven pumps (two cooling water + one lubricating oil pumps).
Tolerance 5%.
Note 4
Fuel gas pressure given at LHV ≥ 36MJ/m³N. Required fuel gas pressure depends on fuel gas LHV and need to be increased for lower LHV's. Pressure drop in
external fuel gas system to be considered. See chapter Fuel system for further information.
Note 5
ME = Engine driving propeller, variable speed
AE = Auxiliary engine driving generator
DE = Diesel-Electric engine driving generator
Subject to revision without notice.
16 Product Guide Wärtsilä 34DF - 3/2012
Product Guide
3. Technical Data
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