Originally Posted by noelex 77
I have been given an old wind generator
(Salmini )and am considering modifying it to a water generator
. Any suggestions as to what pitch
of prop to use ?
I was hoping an old outboard
prop would be feasible.
Practically speaking, a "prop shop" guy can estimate how many rpm's a "propellor pitch" will turn in a given distance. So at 5 knots (average sailboat speed presumed) the distance and rpm
could be forcast. Adjust the pitch to conform to the generator's maximum efficiency RPM
and determine if any adjustment prop pitch/gearing is needed between the prop and the gen.
Would seem a good place to start to me.
I am not an engineer
, but I suspect you can make it work. It would be a fun project
. Go for it, if you get it to work, I am certain an engineer
can figure out WHY it works.