Peter, the device you describe sounds very much like the Tyson turbine. It was manufactured in Australia but is no longer made. Somewhere I have a link to the old website (or at least a picture of the device) if you are interested.
Scott Young -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of peterevans_33 Sent: Monday, August 08, 2005 8:26 PM To: [email protected] Subject: [microhydro] flowing river power hi all, many years ago I saw a tv program about an australian design that generated power from running rivers. It consisted of a twin hulled pontoon, catamran design, then below the water there was a turbine of about 80cm diameter. I assume some sort of belt system for gearing. The pontoon is moored by cables and goes up and down with the river flow. The idea is that it can harness power from rivers that have a shallow gradient. No weirs, dams etc required. Yes power is fairly low because of low water speed, but torque is high. Seemed a pretty simple though useful device. Does anyone know what it is called, if it ever went anywhere. Rough size was about 9ft wide x 15ft long. Another way might be an undershot wheel using simpler materials, effeciecny would be less. But then as the water could flow all around it due to not having a shute/sluice to channel the water, I suspect that a below surface rotor would be more cost effective. Of course all electrics would be above water line. N. Peter Evans 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 <*> 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/
