Hello Reinhard, Nizar >There are initiatives to produce plant oil and use it as fuel >(Jatropha oil). But in a direct way (SVO = straight vegetable oil). > >I think it is much more easy to use the pure plant oil and adapt the >engine to use it. Some stationary engines even don't have to be >modified, like the Indian Lister type engines, which you find in >East African countries.
That depends on many factors, not just the motor but also the circumstances, and individual preferences. There's good information on the choices and options here: http://journeytoforever.org/biodiesel_svo.html Straight vegetable oil as diesel fuel: Guide to using vegetable oil as diesel fuel SVO systems References SVO vs biodiesel in Europe European SVO resources Diesel information Fats and oils Regarding Listers, I'm very interested in this. I mentioned to a biodiesel researcher that Listers would eat just about anything, and this was his reply: "We found the Lister was not all that tolerant. It seems the biodiesel debate has been plagued with misconceptions which become the standard myth. At the time the belief was that the severe problems found with running diesels on veg oil were due to viscosity. We had heard that the South Africans had successfully run tractors on methyl esters so tried the following experiment. We blended distillate with rapeseed oil to a viscosity similar to methyl esters and compared that fuel with methyl esters in the Lister. We had a known load and could feed the fuel through a burette so could work out efficiency. We found the motor would run on esters for long periods with no change while with the blended fuel it lost power and efficiency within hours. The power could be fully restored by wiping the injector nozzle with a rag. So we concluded that viscosity was not the problem but rather it was the chemical nature of the triglyceride." I think he meant to say "tractors on SVO", not methyl esters - that would refer to this study: http://www.biodiesel.org/cgi-local/search.cgi?action=view_report&id=GEN-292 See section concerning South Africa, indirect injection engines, 1800 hours, warranty issuance from manufacturer based on results - Fuls. J., Hawkins, C.S. and Hugo, F.J.C., 1984, "Tractor Engine Performance on Sunflower Oil Fuel," Journal of Agricultural Engineering Research 30:29-35. With that proviso, what he says is rather born out by the findings of the ACREVO study in France: Report of the European Advanced Combustion Research for Energy from Vegetable Oils (ACREVO) study of the use of straight vegetable oil as diesel fuel. Investigates the burning characteristics of vegetable oil droplets from experiments conducted under high pressure and high temperature conditions. Very interesting study, worth a thorough read (4,400 words). http://www.nf-2000.org/secure/Fair/F484.htm But I still have the idea that you can feed a Lister on just about anything! What do you think, Reinhard? Anyway, Nizar, what do you have in mind? Do you have any plans of your own? You're thinking of biodiesel/SVO for diesels, or of ethanol? Are you considering own-use or a larger project? Do you have any thoughts or information on available feedstocks? There is an institute in Nairobi that's planning a biodiesel initiative. If you tell us a bit more maybe I could put you in touch with them. Best wishes Keith Addison >You find a list of Jatropha initiatives in the different countries >in the Jatropha website > >http://www.jatropha.org > >cliocking on network asnd countries. > >Regards > >Reinhard Henning > >"Nizar W. Ramji" <[EMAIL PROTECTED]> schrieb: > > > > I need information if there are any projects pertaining to >biofuels for East African Countries(Tanzania, Kenya and Uganda)? > > > > Nizar W. Ramji ------------------------ Yahoo! Groups Sponsor ---------------------~--> Free $5 Love Reading Risk Free! http://us.click.yahoo.com/3PCXaC/PfREAA/Ey.GAA/9bTolB/TM ---------------------------------------------------------------------~-> Biofuels at Journey to Forever http://journeytoforever.org/biofuel.html Biofuel at WebConX http://www.webconx.com/2000/biofuel/biofuel.htm List messages are archived at the Info-Archive at NNYTech: http://archive.nnytech.net/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
