Don, Nando, about your site, I think like Nando, that a cross-flow type tubine may be not a good solution because a too low head. Cross-flow turbines in such conditions became too width or of a high diameter and so, with low RPM and... very bulcky. An axial or propeller (Kaplan) turbine will be a best option. Regards, Carlos Bonifetti. ----------------------------------------------------------------------------------------------------- ----- Original Message ----- From: "donny_nj" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Wednesday, December 07, 2005 4:20 AM Subject: [microhydro] Re: Cross Flow Turbine
> --- In [email protected], "HYDRO" <[EMAIL PROTECTED]> wrote: >> >> Depending on the power you would like to harvest , the cross flow > may be >> not be a good solution. >> >> 10 feet= 3 meters 1200 cfs= 34 M^3/s may give about 600 KW. >> >> Questions: Can you use 100 % of the water volume ?. >> If not how much ?. >> Does the stream carry fish ? >> If yes, what are the limitations for the area ?. >> >> A Propeller may be the better turbine for your site. >> >> Nando >> >> >> .The # are based on the low flow rate of the year. If we use the > origanal spilway aprox 4ft wide 3ft dp and 25% flow, This will have > very little impact on the wildlife due to the fact the flow make a > 180 deg bend over 400ft with low turbance. The head of 10 - 12 feet > is well in reach with out reconstruction the dam. If we did replace > the dam that was built in 1910, then total head is well over 25 > feet, and have a major impact on the wildlife, Ps the beaver that > live there would be pissed off as well. I hope this provides a > little more info. Thanks Don Barry >> ----- Original Message ----- >> From: "donny_nj" <[EMAIL PROTECTED]> >> To: <[email protected]> >> Sent: Friday, December 02, 2005 1:19 PM >> Subject: [microhydro] Cross Flow Turbine >> >> >> > Hi im located in NJ and looking for some one near by that is > running >> > cross flow system, we currenty hoave a location in VA with a old > water >> > wheel 14ft by 4 ft, hassent run in years, the dam is no longer, > but we >> > still have 10 to 12 feet of head to play with, total flow in the > dry >> > time is over 1,200 cfs. It located on over 60 ackers farm. if > some one >> > has info of a local sight in nj or other info let me know. thanks >> > Don B >> > >> > >> > >> > >> > >> > >> > >> > >> > 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 >> > >> > >> > >> > >> > >> > >> > >> > >> > > > > > > > > > > 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 > > > > > > ------------------------ Yahoo! Groups Sponsor --------------------~--> Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/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/
