Gas Powered Rotating Impellers?
Gas Powered Rotating Impellers?
(OP)
New to the forum, please don't crucify me if this is a silly question. I am interested to know if it is possible to pump gas downward into a vertical cylindrical tube and transmit that gas horizontally at about the midpoint of the vertical piece in order to power multiple 360 degree rotating impellers
Does an apparatus like this already exist?
Approximate diameter of vertical piece would be 0.5"-1.5"
Approximate width of each impeller 2"-4"
Max PSI level of gas= 50 PSI
Does an apparatus like this already exist?
Approximate diameter of vertical piece would be 0.5"-1.5"
Approximate width of each impeller 2"-4"
Max PSI level of gas= 50 PSI





RE: Gas Powered Rotating Impellers?
RE: Gas Powered Rotating Impellers?
RE: Gas Powered Rotating Impellers?
Typically if you accelerate/ decelerating the fluid in a turbo machinery, you are absorbing/generating mechanical power at the shaft, respectively.
So in your case you sould decelerate fluid to generate shaft power.
I dont see how this (centrifugal deceleration) can happen when the fluid flows from inlet radius toward outlet radius according to your sketch.
So my humble answer to your question is : I beleive this machine does not exist because it works contrary to the law of physics.
"If you want to acquire a knowledge or skill, read a book and practice the skill".
RE: Gas Powered Rotating Impellers?
RE: Gas Powered Rotating Impellers?
Furthemore where are you going to put the gas ? it is going to mix with the liquid is it desired or a (messy) side effect?
Why not letting the flow of the gas going axially downward through the tube while puting an axial expansion device inside the tube.
The tube will rotate and drive the mixer connected to it (what you previously called "impeller").
The axial expansion is sort of axial turbine.
"If you want to acquire a knowledge or skill, read a book and practice the skill".
RE: Gas Powered Rotating Impellers?
RE: Gas Powered Rotating Impellers?
RE: Gas Powered Rotating Impellers?
Well I dont know about a reference, the concept is just what came up to my mind.
As for the axial device itself, it needs a study - few things to look at:
- what gas conditions pressure, temperature (enthalpy so to say) do you have available upstream the turbine.
- how much torque / power is required to mix the liquid
- is the speed compatible (an axial turbine usually spins quite fast) while a mixer may need to rotate slowly, that worries me
Maybe a planetary gear...no that would be a bit too far...
"If you want to acquire a knowledge or skill, read a book and practice the skill".
RE: Gas Powered Rotating Impellers?
http://www.mcmaster.com/#pneumatic-motors
RE: Gas Powered Rotating Impellers?
https://upload.wikimedia.org/wikipedia/commons/3/3...
However this may be too expensive and not sure this will meet with your requirements.
RE: Gas Powered Rotating Impellers?