Ryan DeWald
02-18-2005, 06:46 AM
From a report by Phillip Calais and AR (Tony) Clark
http://energy.saving.nu/biofuels/wvo.shtml
From an engine use point of view, it is preferable to use saturated fats as fuels as they are more stable and less resistant to oxidation, particularly under the elevated temperatures and pressures as found in an engine environment.
Drying results from the double bonds (and sometimes triple bonds) in the unsaturated oil molecules being broken by atmospheric oxygen and being converted to peroxides. Cross-linking at this site can then occur and the oil irreversibly polymerises into a plastic-like solid. [9]
In the high temperatures commonly found in internal combustion engines, the process is accelerated and the engine can quickly become gummed-up with the polymerised oil. With some oils, engine failure can occur in as little as 20 hours. [10]
According to Calais and Clark, those using 'fryer shortening' may be doing yourselves a favor.
Anyone have any experience with polymerization of oil besides from blow-by?
http://energy.saving.nu/biofuels/wvo.shtml
From an engine use point of view, it is preferable to use saturated fats as fuels as they are more stable and less resistant to oxidation, particularly under the elevated temperatures and pressures as found in an engine environment.
Drying results from the double bonds (and sometimes triple bonds) in the unsaturated oil molecules being broken by atmospheric oxygen and being converted to peroxides. Cross-linking at this site can then occur and the oil irreversibly polymerises into a plastic-like solid. [9]
In the high temperatures commonly found in internal combustion engines, the process is accelerated and the engine can quickly become gummed-up with the polymerised oil. With some oils, engine failure can occur in as little as 20 hours. [10]
According to Calais and Clark, those using 'fryer shortening' may be doing yourselves a favor.
Anyone have any experience with polymerization of oil besides from blow-by?