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Steve Spence Subscribe to the Renewable Energy Newsletter: http://www.webconx.com/subscribe.htm Renewable Energy Pages - http://www.webconx.com Palm Pilot Pages - http://www.webconx.com/palm X10 Home Automation - http://www.webconx.com/x10 [EMAIL PROTECTED] (212) 894-3704 x3154 - voicemail/fax We do not inherit the earth from our ancestors, we borrow it from our children. -- ----- Original Message ----- From: "Paul Gobert" <[EMAIL PROTECTED]> To: <biofuel@yahoogroups.com> Sent: Sunday, June 10, 2001 9:26 PM Subject: Re: [biofuel] Other uses for biodiesel > > ----- Original Message ----- > From: <[EMAIL PROTECTED]> > > > Today I compared the viscosity of two samples of BD with three oils > > that I have used as damping fluid in the forks of my race-bike. To > > empty a 5ml pippet took: > > BD1---------8sec > > BD2---------9secs > > 2.5wt oil---17sec > > 5wt oil ----34sec > > Nice simple test. Harry was it a graduated pipette or a bulb pipette? If the > latter what grade? > > At the school where I work we have tried various setups for the students to > get an idea of viscosity. > Pouring oil into thistle funnels with capillary tubes attached to the base > worked but was extremely messy. > (a lot of muck for you know who to clean up). Oil and marbles sealed in > testtubes seemed to work, but there was some variation in diameters of > testtubes and marbles amongst the sets. Latest concoction that I have > devised is 100ml plastic bottle, short length of capillary tube silasticed > into base, rubber tubing onto capillary, glass drain tube fitted to other > end of rubber tubing. A laboratory clamp is tightened over the rubber tube > and a measured volume of oil is added to the plastic bottle. In use the cap > is removed from the bottle, the setup is supported by a retort stand, a > beaker is positioned under the drain tube and the clamp released. the > student times how long the oil takes to flow into the beaker. Oil is then > returned to bottle. Student then repeats expt with another aparatus > containing oil of different viscosity. We have struck problems when > introducing temperature into the experiment because of the difficulty in > obtaining monograde oils. When I get the Pug on the road it will need a > supply of 30 grade gearbox oil so that will come in handy for this expt. > > Regards Paul > > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > 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/ > > > Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html 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/
