Rob: Your data is quite incomplete, you are not saying what is power you are getting from the system you have built. Also, please define the water volume that the water source has ( dry and wet seasons).
With a 50 mm pipe and 18 meters head you may get around 100 watts or so with an alternator. If you have more than 2.25 liter/second available then you may increase the power by the ratio of the available volume to 2.25 l/s, if a change in piping diameter is made, the power will vary : 4 inches ( 100 mm) pipe will produce around 620 watts if the water volume is 14 l/s 6 inches ( 150 mm) pipe will produce around 1800 watts if the water volume is 40 l/s 8 inches ( 200 mm) pipe will produce around 3800 watts if the water volume is 85.3 l/s Of course this is a fast estimate If the Car alternator Type is changed for a AC Brushless generator the output power for the 200 mm would be around 5900 watts since the efficiency is much greater. So tell us what you have then one can tell you what you may get from your 18 meter head stream. Regards Nando ----- Original Message ----- From: "rob doyle" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, May 28, 2004 11:20 AM Subject: [microhydro] Re: Small hydro system > Hi All > I'm pretty new to this group so please forgive me if > this is an oft' asked question. > I live in the NW of Ireland and have a small but > constant stream flowing about 100m from where I live. > I have set up a small hydro system. The intake is > approx 18m above the tubine and I've been using a 50mm > pipe which is 200m long to bring the water to the > turbine. We got a small pelton wheel and bolted it to > an old car alternator. It generates a little power but > hardly anything. I was wondering what is the best > solution for a small homebrew turbine and where could > I lay my hands on one. > any ideas welcome > Thanks > Rob > > ________________________________________________________________________ > Yahoo! Messenger - Communicate instantly..."Ping" > your friends today! Download Messenger Now > http://uk.messenger.yahoo.com/download/index.html > > > > > 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 --------------------~--> Make a clean sweep of pop-up ads. Yahoo! Companion Toolbar. Now with Pop-Up Blocker. Get it for free! http://us.click.yahoo.com/L5YrjA/eSIIAA/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/
