posted on Sep, 7 2006 @ 05:56 AM
posted by kuhl
I am hearing rumors of diesel engines running on anything from sunflower oil to vegetable oil? In was wondering if any of the more chemically minded
of our members could give me any more information on this?
1. any modification?
2. special equipment needed?
3. easy to build and operate?
4. miles per gallon be the same?
5. any other details you may have ...cheers [Edited by Don W]
I think you have been linked to a very good thread on converting used cooking oil into usable fuel for a diesel engine. The secret of low cost is
getting the cooking oil free. Picking it up from restaurants mainly. I’m sure some people are able to do that. Large chain restaurants tend to
contract with national firms for that service, so the best sources are already spoken for, putting newcomers at a distinct disadvantage. The pickup
company often furnishes enough 55 gallon drums to hold the output between scheduled pickups. A “hit and miss” service is not good enough for the
businesses who are strctly regulated on waste disposal. Many site managers do not have authority to make changes.
Because diesel is compression ignition, I suppose any hydro-carbon based fuel would work. But fuel is put into the combustion chamber by an injector
which is a very precise measuring instrument. Engines come with injectors intended to run on commercial pump fuel. I think it is called #2. I doubt
there is much tolerance in the injection system for a variety of fuels. I do know the individual injectors and the attendant pumps are quite
expensive. As usual, the little guy is at a distinct disadvantage competing with multi-billion dollar high tech industrial companies.
Over here, in NE FL, diesel is selling for $2.85-$3.05 per US gallon at gasoline service stations. Usually a nickel or a dime higher than 87 gas.
Taxes on fuel here amount to less than $1.00. The retailer’s usual margin - mark-up - is about 15 or 20 cents a gallon.
A good thread is named "High Gas, So what. Lets Talk Biodiesel" but I doin't know how to link you to it.
Advice: Stay with what you know. Deliver more kitchens.
[edit on 9/7/2006 by donwhite]