Thank you Rich and Rackoope for your comments, with the turbine shaft speed of over 20,000rpm and ammonia vapor as the working fluid, not many companies touch this. Also and more importantly for manufacturers, there isn't a big market at the moment. However, this turbine will allow higher cycle...
Searching for ammonia turbines for a closed loop with outputs from 50kW to 50MW. Can anyone point me to a manufacturer's directory or a specific company? The lower range (50kW - 1MW) is the most difficult.