Re: Biodizel saveti i preporuke
http://charlesroring.blogspot.com/2008/ ... iesel.html
FUEL STABILITY
One great environmental advantage of biodiesel is its rapid biodegradability. However, this advantage requires particular attention regarding the stability of the fuel. If biodiesel is exposed to a specific "oxidation stress", i.e. high temperatures and frequent contact with (atmospheric) oxygen, or the influences of UV radiation or contact with non-ferrous metals, it ages faster than conventional diesel. In this case, the double bonds in the fatty acids of the biodiesel are broken and they react with oxygen. That is the starting point for the polymerisation of the fuel, i.e. long-chained molecules form which thicken the fuel and lead to blockages in the injection pumps and filters. To completely prevent this effect, which occurs only under extreme conditions, environmentally friendly additives are added during the production of biodiesel, so-called antioxidants.
Biodiesel based on rapeseed oil (RME) has a naturally high resistance to oxidation. This must be preserved for as long as possible. A positive side effect: this also improves the storage stability and thereby the storage capability.
http://charlesroring.blogspot.com/2008/ ... iesel.html
FUEL STABILITY
One great environmental advantage of biodiesel is its rapid biodegradability. However, this advantage requires particular attention regarding the stability of the fuel. If biodiesel is exposed to a specific "oxidation stress", i.e. high temperatures and frequent contact with (atmospheric) oxygen, or the influences of UV radiation or contact with non-ferrous metals, it ages faster than conventional diesel. In this case, the double bonds in the fatty acids of the biodiesel are broken and they react with oxygen. That is the starting point for the polymerisation of the fuel, i.e. long-chained molecules form which thicken the fuel and lead to blockages in the injection pumps and filters. To completely prevent this effect, which occurs only under extreme conditions, environmentally friendly additives are added during the production of biodiesel, so-called antioxidants.
Biodiesel based on rapeseed oil (RME) has a naturally high resistance to oxidation. This must be preserved for as long as possible. A positive side effect: this also improves the storage stability and thereby the storage capability.
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