--- In [EMAIL PROTECTED], "Juan Boveda" <[EMAIL PROTECTED]> wrote: > Moti, just to add an idea to get cheaper vacuum, to use the gravity not > only a big vacuum pump. > > In industry, to keep under vacuum something the usual way is to use a 11 ö > 11.5 meter tall cylinder full of slow running water (called here "water > leg") usually a steel tube of 1 to 5 inches in diameter with a box or tray > full of water at the bottom and some vacuum device connected to the head > (with valves) to eliminate the non condensing gases ( CO2, air ) usually a > vacuum pump or steam operated ejector, with running water inside tubes as > heat exchanger conneted to the "water leg", to condense the water/ethanol > vapours. The ejector is a Venturi's pipe, that could work with any running > fluid even with cold water from a small centrifugal pump. > The level of vacuum obtained depends on the water temperature used for > cooling (the lower the better) and the pump's or ejector's flow rate > capacity, I add a kind of drawing, hope it goes fine. > > Best regards > Juan > > ____ > -------I I======== > to I_ _I from still > pump I I > I I > I I > I I > I I 11 m minimum > I I > I I > I=====I I=====I Tray > > The drawing didn't come through very well. I'm not sure I understand the process yet. Can anyone help us out? Is it somewhat like a siphon, with condensate in the vacuum tube forming the vacuum?
Motie ------------------------ Yahoo! Groups Sponsor ---------------------~--> Get your FREE credit report with a FREE CreditCheck Monitoring Service trial http://us.click.yahoo.com/ACHqaB/bQ8CAA/ySSFAA/FGYolB/TM ---------------------------------------------------------------------~-> 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/
