This paper describes the rotor dynamic stability analysis and the PTC-10 Class 1 test of a three body centrifugal compressor train for high pressure natural gas injection service. This train had a full load full pressure string test on hydrocarbon gasses to a final discharge pressure of 500 BAR (7250 PSIA). Each compressor is of the back to back configuration, and is equipped with tilting pad seals, damper bearings, and a honeycomb labyrinth at the division wall with shunt holes. The driver is a gas turbine.

Issue Section:
Gas Turbines: Structures and Dynamics
Topics:
Compressors, High pressure (Physics), Stability, Testing, Trains, Pressure, Bearings, Dampers, Dynamic stability, Gas turbines, Honeycomb structures, Natural gas, Rotors, Stress, String
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