Andy: The site needs a very careful set up, this due to the very low head.
Due to the low head, the most practical turbine would be a propeller to attain high RPM from the beginning, the second type would the Banki Turbine. The idea of a car alternator is not practical, because it is very in-efficient and needs a very high RPM to generate the necessary power. You have not stated the distance from the turbine site to the load placement to define generator type, as well as, the best generated voltage. Your site 4 feet=1.2 Meters and 600 GPM= 37.8 liter/sec may produce around 250 Watts if a very careful system design is done -- the final available power depends on the turbine and generator efficiencies. Detail the water volume available power during the Wet season to take in account the extra available power during those periods that may be advantageous to you. A PMA brushless motor converted to a generator maybe the best generator for you. Regards Nando ----- Original Message ----- From: "lecomte381" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Friday, October 14, 2005 10:31 AM Subject: [microhydro] Newbie with 4 feet of head and 600 GPM - sugestions? > The pond and stream in the back yard have a variable flow. Strong in > spring and fall, almost dry in late summer, winter is hard to calcuate > in New England. > A 12 volt battery storage system heating water for home heat as well > as domestic use would be very nice. > An overshot water wheel driving an automotive alternator was my > thought but I am sure there are better, more efficient options. I was > told that I might see 8+ amps at 14.5 volts from this average flow. > > Ecomomical sugestions would be greatly appreciated. > > Thanks > Andy Brown > > > > > > > > > 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/
