Hi Keith,
I«m answering this letter separate from Ken«s answer.
Regarding "I'm really not sure at this stage whether that's good advice or
not though.", my intention is not to freak everyone out. I simply wouldn«t
want anybody to ruin a 2,5lt Grand Cherokee motor by fooling around.
Water, as you«ve mentioned, can bring some benefits in combustion, and often
in chimeneys in industries (for example, when burning hydrocarbons) steam is
injected into the flame area to produce a cleaner combustion. I don«t quite
understand how, but it supposedly does.
In a motor, excess water is said to be a probable cause of rust, and
water-traps do exist in diesel engines for some reason. I«m not quite
familiar wth the related problems, and I«ve found Camillo Holecek«s quote
most interesting. I«ll try to dig into the subject a bit more.
LAB RESULTS were as followed:
Flash Point: Above 118¼C (ASTM PS121 specifies higher than 100¼C, so I
didn«t go much further)
Kinematic Viscosity @ 40¼C: 3.654 cSt
Density: 0.8797 g/cm3
Corrosion: (heating to 100¼C over half an hour with inmersed metal strips)
Aluminum Strip: Slight change in opacity, barely noticeable.
Copper strip: No observed change
Tin strip: No observed change
Iron strip: No observed change
Cloud Point: 9¼C to 10¼C
Pour Point: -4.7¼C
Carbon Residue: 0.0711% (ASTM D189)
Water & Sediment: 1000-2000 ppm
IR Spectrometry: I sent it in attached to [EMAIL PROTECTED]
Best wishes,
Christian
----- Original Message -----
From: "Keith Addison" <[EMAIL PROTECTED]>
To: <biofuel@yahoogroups.com>
Sent: Saturday, June 08, 2002 7:00 AM
Subject: Re: [biofuel] water
> Hi Christian
>
> Well, it's interesting. Do those maximums for water content in the
> standards make any sense? Will water in the fuel damage the engine?
>
> First, this is what Camillo Holecek said about it recently:
>
> "The Austrian Standard ONORM C 1191 said only: "No water should
> settle out" (i.e. about 1200ppm water would stay in solution in our
> FAME.) All others bother about 500 and even 300 ppm (DIN), which is
> nonsense IMO, as FAME is hygroscopic and will attract humidity from
> air until it is back to 1200ppm. Means, in your car you will have
> anything but 300ppm." (FAME being Fatty Acid Methyl Esters, ie
> biodiesel.)
>
> Meanwhile quite a lot of people are trying to figure ways of getting
> MORE water into the fuel. See this, for instance:
> http://archive.nnytech.net/index.php?view=835&list=BIOFUELS-BIZ
>
> Also this:
> http://www.epa.gov/otaq/models/analysis/emulsion/emulbibl.pdf
>
> And this:
> http://www.aquamist.co.uk/dc/reference/refer.html
>
> There seem to be combustion efficiency gains (with misters into the
> air intake) and emissions reductions (with fuel emulsions), but I
> can't figure which is better and why you wouldn't get both effects
> either way. What's the difference between a water mist injected with
> the air vs water in the fuel that gets misted anyway when it's
> injected with the rest of the fuel?
>
> Anway, until we settle it one way or the other, if ever, maybe don't
> worry too much about a little excess water. I'm really not sure at
> this stage whether that's good advice or not though. What d you think?
>
> Christian, what were your lab results, if you don't mind telling us?
>
> Regards
>
> Keith
>
>
>
>
> >Hi all.
> >
> >I ran some lab tests on my BD (from M. Pelly«s recipe), including IR
> >spectrometry, Flash point, Pour point, Cloud point, Density,
> >Viscosity, Residual Carbon and free water & sediment.
> >
> >My findings showed quite a good BD, except for the water.
> >
> >ASTM requires 0,05 % vol max of water. I bubble washed my BD,
> >following the Univ. of Idaho«s method, and it seems that my level of
> >fre water whent up to a value of roughly 0.2% (4 times more than
> >required by ASTM).
> >
> >I will further treat the BD with anhydrous CaCl2 (calcium chloride),
> >though the lab technician also suggested I should use a saturated
> >solution of sodium chloride (tablesalt... i.e., brine) to wash the
> >BD. He said that this would reduce the presence of water in the
> >washed BD.
> >
> >The point is: take care with the bubble washes and water washes in
> >general. Maybe I was just unlucky, but you should try to check the
> >content of water in your BD as the presence of it could be harmful
> >to the motor. I«ve heard some people use pure methanol directly to
> >get a BD pure enough to use without washing... (I don«t know how
> >good this might be). My BD was very transparent. Even more
> >crystaline than diesel fuel bought from my near by gas station.
> >
> >Comments welcome.
> >
> >Regards,
> >
> >Christian
>
>
> Biofuel at Journey to Forever:
> http://journeytoforever.org/biofuel.html
>
> Biofuels list archives:
> http://archive.nnytech.net/
>
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