That depends on want you want to do.
Like a Crossflow or like a river boat the efficiency is very poor and the
power is very low because the area presented to the water is low.
Unless you have a wide blade area which means a wide wheel.
It is better to have a "propeller" presenting a good area to the water.
Now, what do you want to do ?.
----- Original Message -----
Sent: Tuesday, September 02, 2003 11:41 AM
Subject: [microhydro] Run of the stream hydro question
> Does anyone know if it is more effecient to use cup shaped or flat water
> wheel type vanes in useage as a run of the stream power wheel similar to
> a crossflow ?