|Taking a look at this Cylindrical Gate Turbine we can get a general idea of the dimensions. A RED Elipse outlines the end of he Gate. From the center a GREEN line is drawn to the casing. This gives us a general dimensioning shown – The Gate/Turbine occupies approximately 1/2 the dia with 1/4 dia on either side. Think that’s ‘good nuff’ for me.|
|More – Proportional Diameter|
Once again I drew a Elipse around the circumference of the Cylindrical Gate. I then drew GREEN Elipse around the circumference of the white bit .. that would be the gate assembly according to Russ. The turbine wheel/runner would be inside that. From that I get that the white part of the gate has a diameter 3/4 of the outside diameter of the Cylindrical Gate assembly.
Using the 4ft dia casing I have currently designed that means the Cylindrical Gate assembly would be about 2ft in dia, the white inner part about 18in dia. Knocking off an inch off the dia and let’s make a WAG that the turbine wheel/runner would be 16in dia.
The Centrifugal Gate. You have to remember here that this is quite small (this is about 1/2″ across). I am limited by the minimum wall size for FUD which is .3mm .. which means airfoil shaped blades are out. Remember this is a model .. it only has to LOOK correct .. not actually work!
I am thinking that I will put a ring around the top and bottom and leave a hole in the bottom. That way the turbine wheel can slide up inside easily.
|Working on the runner, removing the ‘bits’ not needed. Here .. the tops of the vanes that extend into the support|