Use of vegetable oils in diesel engines
Category: Science > Chemistry
Asked by: jmf103-ga
List Price: $15.00
13 Nov 2006 14:16 PST
Expires: 13 Dec 2006 14:16 PST
Question ID: 782471
I need to find chemical equations for the processes that occur when a vegetable oil undergoes combustion at high temperature in a diesel engine (or more likely an environment simulating this). It does not matter too much what the vegetable oil is, but preferably it should be something not too obscure such as rapeseed oil or sunflower oil. I have found out that when vegetable oil is injected into the combustion chamber, low molecular weight compounds form at the periphery of the mixture (by thermal cracking I think) which are burnt easily, while in the core polymerisation reactions occur leading to high molecular weight compounds which linger for longer. I have been unable to find any equations thus far for these processes however. The only paper I found which had any reference to this but did not provide any equations was an SAE paper by TW Ryan and M O Bagby entitled: Identification of Chemical Changes Occurring During the Transient Injection of Selected Vegetable Oils.
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