Wärtsilä 32 Product Guide
Wärtsilä 32 Product Guide
Wärtsilä 32 Product Guide
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Wärtsilä <strong>32</strong> - <strong>Product</strong> <strong>Guide</strong><br />
6. Fuel Oil System<br />
have typically lower heating value than fossil fuels, the capacity of the fuel injection system must be checked<br />
for each installation.<br />
Table "Straight liquid bio fuel specification" is valid for straight liquid bio fuels, like palm oil, coconut oil,<br />
copra oil, rape seed oil, jathropha oil etc. but is not valid for other bio fuel qualities like animal fats.<br />
Renewable biodiesel can be mixed with fossil distillate fuel. Fossil fuel being used as a blending component<br />
has to fulfill the requirement described earlier in this chapter.<br />
Table 6.3 Straight liquid bio fuel specification<br />
Property<br />
Unit<br />
Limit<br />
Viscosity at 40°C, max. 1) cSt<br />
100<br />
Viscosity, before injection pumps, min.<br />
cSt<br />
2.0<br />
Viscosity, before injection pumps, max.<br />
Density at 15°C, max.<br />
cSt<br />
kg/m³<br />
24<br />
991<br />
Test method ref.<br />
ISO 3104<br />
ISO 3675 or<br />
12185<br />
Ignition properties 2) FIA test<br />
Sulphur, max.<br />
% mass 0.05<br />
ISO 8574<br />
Total sediment existent, max.<br />
Water before engine, max.<br />
Micro carbon residue, max.<br />
Ash, max.<br />
Phosphorus, max.<br />
Silicon, max.<br />
Alkali content (Na+K), max.<br />
Flash point (PMCC), min.<br />
Cloud point, max.<br />
Cold filter plugging point, max.<br />
Copper strip corrosion (3h at 50°C), max.<br />
Steel corrosion (24/72h at 20, 60 and 120°C), max.<br />
Acid number, max.<br />
Strong acid number, max.<br />
Iodine number, max.<br />
Synthetic polymers<br />
% mass<br />
% volume<br />
% mass<br />
% mass<br />
mg/kg<br />
mg/kg<br />
mg/kg<br />
°C<br />
°C<br />
°C<br />
Rating<br />
Rating<br />
mg KOH/g<br />
mg KOH/g<br />
g iodine /<br />
100 g<br />
% mass<br />
0.05<br />
0.20<br />
0.50<br />
0.05<br />
100<br />
15<br />
30<br />
60<br />
3)<br />
3)<br />
1b<br />
No signs of corrosion<br />
15.0<br />
0.0<br />
120<br />
Report 4)<br />
ISO 10307-1<br />
ISO 3733<br />
ISO 10370<br />
ISO 6245 /<br />
LP1001<br />
ISO 10478<br />
ISO 10478<br />
ISO 10478<br />
ISO 2719<br />
ISO 3015<br />
IP 309<br />
ASTM D130<br />
LP 2902<br />
ASTM D664<br />
ASTM D664<br />
ISO 3961<br />
LP 2401 ext. and<br />
LP 3402<br />
Remarks:<br />
1)<br />
2)<br />
3)<br />
4)<br />
If injection viscosity of max. 24 cSt cannot be achieved with an unheated fuel, fuel oil system has to<br />
be equipped with a heater.<br />
Ignition properties have to be equal to or better than requirements for fossil fuels, i.e. CN min. 35 for<br />
MDF and CCAI max. 870 for HFO.<br />
Cloud point and cold filter plugging point have to be at least 10°C below the fuel injection temperature.<br />
Biofuels originating from food industry can contain synthetic polymers, like e.g. styrene, propene<br />
and ethylene used in packing material. Such compounds can cause filter clogging and shall thus not<br />
be present in biofuels.<br />
<strong>Product</strong> <strong>Guide</strong> W<strong>32</strong> - 1/2013 43
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