Hello Martin, Boat propellers can not be used as axial flew turbine runners because the blade tips are rounded and so don't fit well inside the turbine tube, for operation with pressure head. Instead of those, axial pumps runners can be good, easy obtained from industrial pump manufacturers. The axial turbine runner have blades with circular arc tips, mounted with a very small gap, no more than 1 mm, between tip and tube. Regards, Carlos -----------------------------------------------------------------------------
----- Original Message ----- From: "chilechinadollz" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Monday, September 05, 2005 12:48 PM Subject: [microhydro] boat propellers as runners > Hello All, > I am a new member, but I have enjoyed reading your group for a while now. > I have a question. Has anyone explored the use of boat propellers as > runners in a propeller turbine? I have read about supposedly > successful turbines in third world apps where the runner was made up > of flat steel blades. It seems like the blade profile of boat > propellers would be more efficient. They are certainly easy obtain. > Secondly, if there is experience out there, how would one relate prop > pitch to the conditions; ie. head and flow? > Thanks, > Martin > > > > > > > > > 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/
