coachgeo3 wrote: >--- In [EMAIL PROTECTED], "Darren" <[EMAIL PROTECTED]> wrote: > > Although I am personally mainly interested with running engines on >SVO I > > have come across a lot of information about emulsions and solvent >blends. > > > > It would appear to me that there is a great potential in >development. ...[snip] > > No waste products, no heat required, little chance of a 'bad' > > reaction > > > > http://www... [snip]... > >Darren, > >Thank you for piping in. > >In my hasty review of the first study u provided I found of greatest >interest the following. > >" It has been established that an addition of 9 % of ethyl alcohol >(95 %) bring a great benefit regarding the pre-heating oil >temperature. In fact, the presence of alcohol allows a reduction in >the inlet oil temperature from 150 ¡C to 80 ¡C." yatta yatta yatt... >paraphrasing here...reduces soot emisions. > >To me the above reads.. more fuel was efficeinly used to produce work >via the motor and less fuel going out the exhaust. Also of cource >lower temps needed to use the oil. Significantly lower. > >This was refering to rapseed oil. I am confused by the percentages >listed though. Above says 9% ethyl.. but then 95% in parenthesese. >Does the (95%) mean the ethyl used was 95% pure or something like >that?
This is the famous ACREVO study, which has been much discussed here, and yes, that's the bit that gets all the attention. It means what it says, 9% of 95% ethanol, as opposed to absolute ethanol (99%+). So the ethanol had a 5% water content. Unfortunately they don't say why they used 95%, nor what the effect of the water content may have been. Pity about your "yatta yatta yatt", that's the other interesting bit, that it not only reduced the temperature required for the veg-oil to combust properly in a DI from an unfeasible 150C to a feasible 80C, but with an extra 50% reduction in soot formation - burning pure rapeseed oil already had 40% less soot than petro-diesel. There's also been much discussion on water mixes with biodiesel, either dissolved in the fuel or as a mist into the air intake, which a lot of research has found can improve combustion and reduce emissions. Please, this is NOT the same as having water in your dino-diesel, bad news. The research with dino-diesel and water have had the water emulsified with the fuel, a different matter. Seems you can blend quite a lot of water (and ethanol) with biodiesel without an emulsifier, or at least without a proprietory emulsifier. One of these days we should get some further info on the use of biodiesel-ethanol-water mixes. What the ACREVO study doesn't say is "no heat required", especially not for DIs. IMO it points the way for using SVO in DIs, but you'll still have to pre-heat it. Solvent blends, yes, interesting, but as soon as I read about a proprietory additive I get turned right off. We're after fuel independence after all. Even with biodiesel, we should be making our own methanol, and/or developing better methods for ethyl esters. IMHO. Best Keith ------------------------ Yahoo! Groups Sponsor ---------------------~--> Free $5 Love Reading Risk Free! http://us.click.yahoo.com/NsdPZD/PfREAA/Ey.GAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/ Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
