The Book "Pumps as Turbines" gives a flow rate of 85.5 l/s for a 250mm pipe (about 12") and 138 l/s for 300mm. This produces a head loss of 1% per unit lenght of pipe.
--- In [EMAIL PROTECTED], "Dave" <[EMAIL PROTECTED]> wrote: > I repeat the question, but this time can someone answer it with or > without promoting their PC software? > > > Can anybody help me figure how many gallons per minute will flow > thru > > > both a 10 inch and 12 inch penstock that is 22 feet long that has > a 6 > > > foot 8 inch head without any turbine? The penstock will have one > 90 > > > degree bend and a 3 foot draft tube. I trying to determine what > size > > > will be ideal to replace the existing 8.25 inch penstock before i > > > size a turbine that sizes the penstock. Thanx > > > > > > > 1. > > This now the fifth time since October last year that I advise the > group that > > SF Pressure Drop 5.0 [available at http://www.pressure- drop.com/] > makes it easy > > to do any pipe friction/pressure drop calculation imaginable. ------------------------ Yahoo! Groups Sponsor --------------------~--> Yahoo! Domains - Claim yours for only $14.70 http://us.click.yahoo.com/Z1wmxD/DREIAA/yQLSAA/FGYolB/TM --------------------------------------------------------------------~-> Does your company feature in the microhydro business directory at http://microhydropower.net/directory ? If not, please register free of charge and be exposed to the microhydro community world wide! NOTE: The advertisements in this email are added by Yahoogroups who provides us with free email group services. The microhydro-group does not endorse products or support the advertisements in any way. More information on micro hydropower at http://microhydropower.net To unsubscribe: send empty message to [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/microhydro/ <*> 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/
