Low RPM (15000) r134a turbine

[cmcgonag]

We are looking at building or retrofitting a turbine for use with r134a. I can't find a book or reference material to correctly design the turbine to operate at low rpm and under given operating parameters. Heat is not a problem in our case but packaging is. We need torque over power. Any direction on how to define the blade geometry and overall turbine shape would be greatly appreciated.

Thanks,

Colin

 

[JJPellin]

I would not refer to 15,000 rpm as low speed. I see no reason for you to attempt to design your own turbine including blading. Commercially available turbines should fill any need. Contact major turbine manufacturer's and give them your requirements. Why would you want to design a turbine from scratch?

Johnny Pellin

 

[rmw]

Dare I ask what HIGH speed is?

rmw

 

[cmcgonag]

We need a turbine in the order of 5 hp. Could you supply me a list of people that make turbines that size. We could use a turbocharger turbine but they rotate above 100,000 rpm.

 

[ornerynorsk]

There is a bunch of stuff available on refrigerant steam turbines. Why such low RPM ?

 

[cmcgonag]

We need to connect to a generator and do not want to do more than a 5:1 gear reduction. We could do more, but this is supposed to be a third world low maintence application.

 

[dcasto]

You mean like this?

http://www.youtube.com/watch?v=atu00VDDXAI