>I fail to see how adding water to the fuel is of benefit. water injection >cools the air charge, allowing more air to be injested, boosting power, and >preventing premature detonation. water filters on diesels are there for a >reason. > > >Steve Spence >Subscribe to the Renewable Energy Newsletter: >http://www.webconx.com/subscribe.htm
Have a look at this, Steve: http://www.epa.gov/otaq/models/analysis/emulsion/emulbibl.pdf Best Keith >Renewable Energy Pages - http://www.webconx.dns2go.com/ >Human powered devices, equipment, and transport - >http://www.webconx.dns2go.com/2000/humanpower.htm >[EMAIL PROTECTED] >----- Original Message ----- >From: "gjkimlin" <[EMAIL PROTECTED]> >To: <biofuels-biz@yahoogroups.com> >Sent: Friday, May 24, 2002 1:13 AM >Subject: [biofuels-biz] Is 10% EthOH, 10%water, 20% bio, 60% diesel the >ultimate blend? > > > > Some recent discussion on water injection focused on the cooling > > effect of the water and or ethanol. That is important as it would > > increase the effective turbo boost and increase the power output. If > > the boost effect is substantial though the increase in cylinder > > pressures must be a concern. Can the bottom end of the motor take it? > > Similar problem to after market fitting of turbos. > > Water CAN be blended with diesel!! A bus company in NSW (AUS) is > > trialing a 10% water emulsion using an emulsifying agent imported > > from the US. The stable emulsion looks like milk. The mix has a > > detergent effect, requiring precleaning of the fuel system to prevent > > filter blockage. In addition a coarser fuel filter is fitted. > > Apparently the water droplets are surrounded by diesel creating an > > effectively large particle size. The reported effects on pollution > > are similar to those recorded for diodiesel. In Bundaberg QLD a plant > > produces diesahol- a blend of ethanol with diesel. I have mixed > > absolute ethanol (and methanol) with biodiesel 50:50, the solution > > has been stable for 8 months now-no separation and no apparent > > freezing in response to sub zero nights. > > Low sulphur diesel has low lubricity and requires addition of a > > lubricant. I expect that either the water blend or the diesahol would > > be worse. It makes sense that the lubricant be biodiesel as it would > > also improve some of the fuel properties. I have no figures on the > > effect of either the water or Ethanol on Cetane but I would expect it > > to be lowered, both are reported to improve milage and power. > > Ethanol, bio and diesel blend quite well; to blend the water seems to > > require a "detergent" or emulsifier and since Fatty Acid Alcohols are > > the biodegradable detergents from the Eighties it follows that the > > biodiesel plant could provide them as well. I will look at the > > chemistry. > > Finding the best proportions of the four ingredients would require > > some factorial experimentation and may come down to cost > > effectiveness. > > It seems that this blend may be the most practical application of the > > current technology. > > For those interested in the blending process itself, consider > > homogenisation. Forcing a mixture through a slot at 3000 PSI onto > > an "anvil" apparently breaks up the particles in a way that prevents > > the components from separating hence creating a stable emulsion. The > > same may apply to the high freezing point Esters that have the > > potential to clog filters in cold weather, the crystals are very long > > and fibrous, just begging to be broken up by homogenisation. An > > alternative to removing them by winterisation. > > Regards from Harry. ------------------------ Yahoo! Groups Sponsor ---------------------~--> Buy Stock for $4 and no minimums. FREE Money 2002. http://us.click.yahoo.com/orkH0C/n97DAA/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/
