At ISO 15550 conditions (ambient air temperature 25°C) and 100% load. Flow tolerance 8%.Note 1
At ISO 15550 conditions (ambient air temperature 25°C). Flow tolerance 8% and temperature tolerance 15°C.
Available max backpressure is 6 KpA; in this condition all consumption and HB value have to be evaluated. Please contact
Wärtsilä to have further informations.
Note 2
At ISO 15550 conditions (ambient air temperature 25°C ) and 100% load. 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
According to ISO 15550, lower calorific value 42700 kJ/kg, with engine driven pumps (two cooling water + one lubricating
oil pumps). Tolerance 5%. The fuel consumption at 85 % load is guaranteed and the values at other loads are given for
indication only.
Note 4
Consumption values in constant speed are valid for D2/E2 IMO cycles.
*If SCR (with a max sulphur content of 0.5%m/m) is applied SFOC consumption values @ 85% may vary in this way:
SFOC(85%) + 0.5g/kWh + (335- (Temperature after turbocharger at 85%))*0.04 g/kWh. Please contact Wärtsilä to have
further informations.
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 inform-
ation.
Note 5
At manual starting the consumption may be 2...3 times lower.Note 6
ME = Engine driving propeller, variable speed
DE = Diesel-Electric engine driving generator
Subject to revision without notice.
3-12 DBAD209883
Wärtsilä 46DF Product Guide3. Technical Data
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