Liquid Ring Compressor Torque Questions 1

[rhatcher]

I am interested in the torque characteristics of a liquid ring compressor for the purpose of specifying a driving motor. My questions are:
- Is the speed torque characteristic (starting torque) constant torque or variable torque?
- Is the duty cycle (running torque) constant or variable? By variable, I mean similar to a reciprocating piston compressor in that the torque varies from high to low during the compressor rotation.

I will appreciate any answers and explanations and would also greatly appreciate answers that include a reference document.

 

[nickelkid]

rhatcher,

This link may help

http://www.travaini.com/PDF/SupportDocuments/Starting Torque.pdf

 

[rhatcher]

RobinHandy,

Thank you very much for the informative response.