Turboexpander testing

Although testing practices may vary between manufacturers, Elliott s approach is considered representative of experience-hased testing of hot gas turhoexpanders. 

Rotor Heat Cycle. As part of the rotor construction, Elliott conducts a heat cycling test of the rotor at the shaft-to-disk 

Onee the final balanee of the rotor is aehieved, a eheek of the eleetrieal runout is eondueted. If this runout exeeeds the standard speeifieations, eorreetive measures are taken. 

Throw-off temperatures from journal bearings and thrust bearing 

The casing-internal instrument thermocouples are checked to ensure they are reading properly. RTDs and/or load cells are also checked during the test. The steam buffer seal controls are installed and functionally checked during the test. 

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